--- _id: '14845' abstract: - lang: eng text: We study a linear rotor in a bosonic bath within the angulon formalism. Our focus is on systems where isotropic or anisotropic impurity-boson interactions support a shallow bound state. To study the fate of the angulon in the vicinity of bound-state formation, we formulate a beyond-linear-coupling angulon Hamiltonian. First, we use it to study attractive, spherically symmetric impurity-boson interactions for which the linear rotor can be mapped onto a static impurity. The well-known polaron formalism provides an adequate description in this limit. Second, we consider anisotropic potentials, and show that the presence of a shallow bound state with pronounced anisotropic character leads to a many-body instability that washes out the angulon dynamics. acknowledgement: "We would like to thank G. Bighin, I. Cherepanov, E. Paerschke, and E. Yakaboylu for insightful discussions on a wide range of topics. This work has been supported by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). A.G. and A.G.V. acknowledge support from the European Union’s Horizon 2020 research and innovation\r\nprogram under the Marie Skłodowska-Curie Grant Agreement No. 754411. Numerical calculations were performed on the Euler cluster managed by the HPC team at ETH Zurich.\r\nR.S. acknowledges support by the Deutsche Forschungsgemeinschaft under Germany’s Excellence Strategy Grant No. EXC 2181/1-390900948 (the Heidelberg STRUCTURES Excellence Cluster). T.D. acknowledges support from the Isaac Newton Studentship and the Science and Technology Facilities Council under Grant No. ST/V50659X/1." article_number: '014102' article_processing_charge: No article_type: original author: - first_name: Tibor full_name: Dome, Tibor id: 7e3293e2-b9dc-11ee-97a9-cd73400f6994 last_name: Dome orcid: 0000-0003-2586-3702 - first_name: Artem full_name: Volosniev, Artem id: 37D278BC-F248-11E8-B48F-1D18A9856A87 last_name: Volosniev orcid: 0000-0003-0393-5525 - first_name: Areg full_name: Ghazaryan, Areg id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87 last_name: Ghazaryan orcid: 0000-0001-9666-3543 - first_name: Laleh full_name: Safari, Laleh id: 3C325E5E-F248-11E8-B48F-1D18A9856A87 last_name: Safari - first_name: Richard full_name: Schmidt, Richard last_name: Schmidt - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Dome T, Volosniev A, Ghazaryan A, Safari L, Schmidt R, Lemeshko M. Linear rotor in an ideal Bose gas near the threshold for binding. Physical Review B. 2024;109(1). doi:10.1103/PhysRevB.109.014102 apa: Dome, T., Volosniev, A., Ghazaryan, A., Safari, L., Schmidt, R., & Lemeshko, M. (2024). Linear rotor in an ideal Bose gas near the threshold for binding. Physical Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.109.014102 chicago: Dome, Tibor, Artem Volosniev, Areg Ghazaryan, Laleh Safari, Richard Schmidt, and Mikhail Lemeshko. “Linear Rotor in an Ideal Bose Gas near the Threshold for Binding.” Physical Review B. American Physical Society, 2024. https://doi.org/10.1103/PhysRevB.109.014102. ieee: T. Dome, A. Volosniev, A. Ghazaryan, L. Safari, R. Schmidt, and M. Lemeshko, “Linear rotor in an ideal Bose gas near the threshold for binding,” Physical Review B, vol. 109, no. 1. American Physical Society, 2024. ista: Dome T, Volosniev A, Ghazaryan A, Safari L, Schmidt R, Lemeshko M. 2024. Linear rotor in an ideal Bose gas near the threshold for binding. Physical Review B. 109(1), 014102. mla: Dome, Tibor, et al. “Linear Rotor in an Ideal Bose Gas near the Threshold for Binding.” Physical Review B, vol. 109, no. 1, 014102, American Physical Society, 2024, doi:10.1103/PhysRevB.109.014102. short: T. Dome, A. Volosniev, A. Ghazaryan, L. Safari, R. Schmidt, M. Lemeshko, Physical Review B 109 (2024). date_created: 2024-01-21T23:00:57Z date_published: 2024-01-01T00:00:00Z date_updated: 2024-01-23T10:51:09Z day: '01' department: - _id: MiLe doi: 10.1103/PhysRevB.109.014102 ec_funded: 1 intvolume: ' 109' issue: '1' language: - iso: eng month: '01' oa_version: None project: - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' - _id: 260C2330-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '754411' name: ISTplus - Postdoctoral Fellowships publication: Physical Review B publication_identifier: eissn: - 2469-9969 issn: - 2469-9950 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Linear rotor in an ideal Bose gas near the threshold for binding type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 109 year: '2024' ... --- _id: '14851' abstract: - lang: ger text: Die Quantenrotation ist ein spannendes Phänomen, das in vielen verschiedenen Systemen auftritt, von Molekülen und Atomen bis hin zu subatomaren Teilchen wie Neutronen und Protonen. Durch den Einsatz von starken Laserpulsen ist es möglich, die mathematisch anspruchsvolle Topologie der Rotation von Molekülen aufzudecken und topologisch geschützte Zustände zu erzeugen, die unerwartetes Verhalten zeigen. Diese Entdeckungen könnten Auswirkungen auf die Molekülphysik und physikalische Chemie haben und die Entwicklung neuer Technologien ermöglichen. Die Verbindung von Quantenrotation und Topologie stellt ein aufregendes, interdisziplinäres Forschungsfeld dar und bietet neue Wege zur Kontrolle und Nutzung von quantenmechanischen Phänomenen. article_processing_charge: Yes (via OA deal) article_type: original author: - first_name: Volker full_name: Karle, Volker id: D7C012AE-D7ED-11E9-95E8-1EC5E5697425 last_name: Karle orcid: 0000-0002-6963-0129 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Karle V, Lemeshko M. Die faszinierende Topologie rotierender Quanten. Physik in unserer Zeit. 2024;55(1):28-33. doi:10.1002/piuz.202301690 apa: Karle, V., & Lemeshko, M. (2024). Die faszinierende Topologie rotierender Quanten. Physik in unserer Zeit. Wiley. https://doi.org/10.1002/piuz.202301690 chicago: Karle, Volker, and Mikhail Lemeshko. “Die faszinierende Topologie rotierender Quanten.” Physik in unserer Zeit. Wiley, 2024. https://doi.org/10.1002/piuz.202301690. ieee: V. Karle and M. Lemeshko, “Die faszinierende Topologie rotierender Quanten,” Physik in unserer Zeit, vol. 55, no. 1. Wiley, pp. 28–33, 2024. ista: Karle V, Lemeshko M. 2024. Die faszinierende Topologie rotierender Quanten. Physik in unserer Zeit. 55(1), 28–33. mla: Karle, Volker, and Mikhail Lemeshko. “Die faszinierende Topologie rotierender Quanten.” Physik in unserer Zeit, vol. 55, no. 1, Wiley, 2024, pp. 28–33, doi:10.1002/piuz.202301690. short: V. Karle, M. Lemeshko, Physik in unserer Zeit 55 (2024) 28–33. date_created: 2024-01-22T08:19:36Z date_published: 2024-01-01T00:00:00Z date_updated: 2024-02-15T14:29:04Z day: '01' ddc: - '530' department: - _id: MiLe doi: 10.1002/piuz.202301690 file: - access_level: open_access checksum: 3051dadcf9bc57da97e36b647c596ab1 content_type: application/pdf creator: dernst date_created: 2024-01-23T12:18:07Z date_updated: 2024-01-23T12:18:07Z file_id: '14878' file_name: 2024_PhysikZeit_Karle.pdf file_size: 1155244 relation: main_file success: 1 file_date_updated: 2024-01-23T12:18:07Z has_accepted_license: '1' intvolume: ' 55' issue: '1' keyword: - General Earth and Planetary Sciences - General Environmental Science language: - iso: ger month: '01' oa: 1 oa_version: Published Version page: 28-33 publication: Physik in unserer Zeit publication_identifier: eissn: - 1521-3943 issn: - 0031-9252 publication_status: published publisher: Wiley quality_controlled: '1' status: public title: Die faszinierende Topologie rotierender Quanten tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 55 year: '2024' ... --- _id: '15004' abstract: - lang: eng text: The impulsive limit (the “sudden approximation”) has been widely employed to describe the interaction between molecules and short, far-off-resonant laser pulses. This approximation assumes that the timescale of the laser-molecule interaction is significantly shorter than the internal rotational period of the molecule, resulting in the rotational motion being instantaneously “frozen” during the interaction. This simplified description of the laser-molecule interaction is incorporated in various theoretical models predicting rotational dynamics of molecules driven by short laser pulses. In this theoretical work, we develop an effective theory for ultrashort laser pulses by examining the full time-evolution operator and solving the time-dependent Schrödinger equation at the operator level. Our findings reveal a critical angular momentum, lcrit, at which the impulsive limit breaks down. In other words, the validity of the sudden approximation depends not only on the pulse duration but also on its intensity, since the latter determines how many angular momentum states are populated. We explore both ultrashort multicycle (Gaussian) pulses and the somewhat less studied half-cycle pulses, which produce distinct effective potentials. We discuss the limitations of the impulsive limit and propose a method that rescales the effective matrix elements, enabling an improved and more accurate description of laser-molecule interactions. acknowledgement: We thank Bretislav Friedrich, Marjan Mirahmadi, Artem Volosniev, and Burkhard Schmidt for insightful discussions. M.L. acknowledges support by the European Research Council (ERC) under Starting Grant No. 801770 (ANGULON). article_number: '023101' article_processing_charge: No article_type: original author: - first_name: Volker full_name: Karle, Volker id: D7C012AE-D7ED-11E9-95E8-1EC5E5697425 last_name: Karle orcid: 0000-0002-6963-0129 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: 'Karle V, Lemeshko M. Modeling laser pulses as δ kicks: Reevaluating the impulsive limit in molecular rotational dynamics. Physical Review A. 2024;109(2). doi:10.1103/PhysRevA.109.023101' apa: 'Karle, V., & Lemeshko, M. (2024). Modeling laser pulses as δ kicks: Reevaluating the impulsive limit in molecular rotational dynamics. Physical Review A. American Physical Society. https://doi.org/10.1103/PhysRevA.109.023101' chicago: 'Karle, Volker, and Mikhail Lemeshko. “Modeling Laser Pulses as δ Kicks: Reevaluating the Impulsive Limit in Molecular Rotational Dynamics.” Physical Review A. American Physical Society, 2024. https://doi.org/10.1103/PhysRevA.109.023101.' ieee: 'V. Karle and M. Lemeshko, “Modeling laser pulses as δ kicks: Reevaluating the impulsive limit in molecular rotational dynamics,” Physical Review A, vol. 109, no. 2. American Physical Society, 2024.' ista: 'Karle V, Lemeshko M. 2024. Modeling laser pulses as δ kicks: Reevaluating the impulsive limit in molecular rotational dynamics. Physical Review A. 109(2), 023101.' mla: 'Karle, Volker, and Mikhail Lemeshko. “Modeling Laser Pulses as δ Kicks: Reevaluating the Impulsive Limit in Molecular Rotational Dynamics.” Physical Review A, vol. 109, no. 2, 023101, American Physical Society, 2024, doi:10.1103/PhysRevA.109.023101.' short: V. Karle, M. Lemeshko, Physical Review A 109 (2024). date_created: 2024-02-18T23:01:01Z date_published: 2024-02-01T00:00:00Z date_updated: 2024-02-26T09:45:20Z day: '01' department: - _id: MiLe doi: 10.1103/PhysRevA.109.023101 ec_funded: 1 external_id: arxiv: - '2307.07256' intvolume: ' 109' issue: '2' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2307.07256 month: '02' oa: 1 oa_version: Preprint project: - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: Physical Review A publication_identifier: eissn: - 2469-9934 issn: - 2469-9926 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: 'Modeling laser pulses as δ kicks: Reevaluating the impulsive limit in molecular rotational dynamics' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 109 year: '2024' ... --- _id: '12534' abstract: - lang: eng text: Brownian motion of a mobile impurity in a bath is affected by spin-orbit coupling (SOC). Here, we discuss a Caldeira-Leggett-type model that can be used to propose and interpret quantum simulators of this problem in cold Bose gases. First, we derive a master equation that describes the model and explore it in a one-dimensional (1D) setting. To validate the standard assumptions needed for our derivation, we analyze available experimental data without SOC; as a byproduct, this analysis suggests that the quench dynamics of the impurity is beyond the 1D Bose-polaron approach at temperatures currently accessible in a cold-atom laboratory—motion of the impurity is mainly driven by dissipation. For systems with SOC, we demonstrate that 1D spin-orbit coupling can be gauged out even in the presence of dissipation—the information about SOC is incorporated in the initial conditions. Observables sensitive to this information (such as spin densities) can be used to study formation of steady spin polarization domains during quench dynamics. acknowledgement: "We thank Rafael Barfknecht for help at the initial stages of this project; Fabian Brauneis for useful discussions; Miguel A. Garcia-March, Georgios Koutentakis, and Simeon Mistakidis\r\nfor comments on the paper. M.L. acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON)." article_number: '013029' article_processing_charge: No article_type: original author: - first_name: Areg full_name: Ghazaryan, Areg id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87 last_name: Ghazaryan orcid: 0000-0001-9666-3543 - first_name: Alberto full_name: Cappellaro, Alberto id: 9d13b3cb-30a2-11eb-80dc-f772505e8660 last_name: Cappellaro orcid: 0000-0001-6110-2359 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Artem full_name: Volosniev, Artem id: 37D278BC-F248-11E8-B48F-1D18A9856A87 last_name: Volosniev orcid: 0000-0003-0393-5525 citation: ama: Ghazaryan A, Cappellaro A, Lemeshko M, Volosniev A. Dissipative dynamics of an impurity with spin-orbit coupling. Physical Review Research. 2023;5(1). doi:10.1103/physrevresearch.5.013029 apa: Ghazaryan, A., Cappellaro, A., Lemeshko, M., & Volosniev, A. (2023). Dissipative dynamics of an impurity with spin-orbit coupling. Physical Review Research. American Physical Society. https://doi.org/10.1103/physrevresearch.5.013029 chicago: Ghazaryan, Areg, Alberto Cappellaro, Mikhail Lemeshko, and Artem Volosniev. “Dissipative Dynamics of an Impurity with Spin-Orbit Coupling.” Physical Review Research. American Physical Society, 2023. https://doi.org/10.1103/physrevresearch.5.013029. ieee: A. Ghazaryan, A. Cappellaro, M. Lemeshko, and A. Volosniev, “Dissipative dynamics of an impurity with spin-orbit coupling,” Physical Review Research, vol. 5, no. 1. American Physical Society, 2023. ista: Ghazaryan A, Cappellaro A, Lemeshko M, Volosniev A. 2023. Dissipative dynamics of an impurity with spin-orbit coupling. Physical Review Research. 5(1), 013029. mla: Ghazaryan, Areg, et al. “Dissipative Dynamics of an Impurity with Spin-Orbit Coupling.” Physical Review Research, vol. 5, no. 1, 013029, American Physical Society, 2023, doi:10.1103/physrevresearch.5.013029. short: A. Ghazaryan, A. Cappellaro, M. Lemeshko, A. Volosniev, Physical Review Research 5 (2023). date_created: 2023-02-10T09:02:26Z date_published: 2023-01-20T00:00:00Z date_updated: 2023-02-20T07:02:00Z day: '20' ddc: - '530' department: - _id: MiLe doi: 10.1103/physrevresearch.5.013029 ec_funded: 1 file: - access_level: open_access checksum: 6068b62874c0099628a108bb9c5c6bd2 content_type: application/pdf creator: dernst date_created: 2023-02-13T10:38:10Z date_updated: 2023-02-13T10:38:10Z file_id: '12546' file_name: 2023_PhysicalReviewResearch_Ghazaryan.pdf file_size: 865150 relation: main_file success: 1 file_date_updated: 2023-02-13T10:38:10Z has_accepted_license: '1' intvolume: ' 5' issue: '1' language: - iso: eng month: '01' oa: 1 oa_version: Published Version project: - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: Physical Review Research publication_identifier: issn: - 2643-1564 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Dissipative dynamics of an impurity with spin-orbit coupling tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 5 year: '2023' ... --- _id: '13251' abstract: - lang: eng text: A rotating organic cation and a dynamically disordered soft inorganic cage are the hallmark features of organic-inorganic lead-halide perovskites. Understanding the interplay between these two subsystems is a challenging problem, but it is this coupling that is widely conjectured to be responsible for the unique behavior of photocarriers in these materials. In this work, we use the fact that the polarizability of the organic cation strongly depends on the ambient electrostatic environment to put the molecule forward as a sensitive probe of the local crystal fields inside the lattice cell. We measure the average polarizability of the C/N–H bond stretching mode by means of infrared spectroscopy, which allows us to deduce the character of the motion of the cation molecule, find the magnitude of the local crystal field, and place an estimate on the strength of the hydrogen bond between the hydrogen and halide atoms. Our results pave the way for understanding electric fields in lead-halide perovskites using infrared bond spectroscopy. acknowledgement: "We thank Bingqing Cheng and Hong-Zhou Ye for valuable discussions; Y.W.’s work at IST Austria was supported through ISTernship summer internship program funded by OeADGmbH; D.L. and Z.A. acknowledge support by IST Austria (ISTA); M.L. acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON).\r\nA.A.Z. and O.M.B. acknowledge support by KAUST." article_processing_charge: Yes (via OA deal) article_type: original author: - first_name: Yujing full_name: Wei, Yujing id: 0c5ff007-2600-11ee-b896-98bd8d663294 last_name: Wei orcid: 0000-0001-8913-9719 - first_name: Artem full_name: Volosniev, Artem id: 37D278BC-F248-11E8-B48F-1D18A9856A87 last_name: Volosniev orcid: 0000-0003-0393-5525 - first_name: Dusan full_name: Lorenc, Dusan id: 40D8A3E6-F248-11E8-B48F-1D18A9856A87 last_name: Lorenc - first_name: Ayan A. full_name: Zhumekenov, Ayan A. last_name: Zhumekenov - first_name: Osman M. full_name: Bakr, Osman M. last_name: Bakr - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Zhanybek full_name: Alpichshev, Zhanybek id: 45E67A2A-F248-11E8-B48F-1D18A9856A87 last_name: Alpichshev orcid: 0000-0002-7183-5203 citation: ama: Wei Y, Volosniev A, Lorenc D, et al. Bond polarizability as a probe of local crystal fields in hybrid lead-halide perovskites. The Journal of Physical Chemistry Letters. 2023;14(27):6309-6314. doi:10.1021/acs.jpclett.3c01158 apa: Wei, Y., Volosniev, A., Lorenc, D., Zhumekenov, A. A., Bakr, O. M., Lemeshko, M., & Alpichshev, Z. (2023). Bond polarizability as a probe of local crystal fields in hybrid lead-halide perovskites. The Journal of Physical Chemistry Letters. American Chemical Society. https://doi.org/10.1021/acs.jpclett.3c01158 chicago: Wei, Yujing, Artem Volosniev, Dusan Lorenc, Ayan A. Zhumekenov, Osman M. Bakr, Mikhail Lemeshko, and Zhanybek Alpichshev. “Bond Polarizability as a Probe of Local Crystal Fields in Hybrid Lead-Halide Perovskites.” The Journal of Physical Chemistry Letters. American Chemical Society, 2023. https://doi.org/10.1021/acs.jpclett.3c01158. ieee: Y. Wei et al., “Bond polarizability as a probe of local crystal fields in hybrid lead-halide perovskites,” The Journal of Physical Chemistry Letters, vol. 14, no. 27. American Chemical Society, pp. 6309–6314, 2023. ista: Wei Y, Volosniev A, Lorenc D, Zhumekenov AA, Bakr OM, Lemeshko M, Alpichshev Z. 2023. Bond polarizability as a probe of local crystal fields in hybrid lead-halide perovskites. The Journal of Physical Chemistry Letters. 14(27), 6309–6314. mla: Wei, Yujing, et al. “Bond Polarizability as a Probe of Local Crystal Fields in Hybrid Lead-Halide Perovskites.” The Journal of Physical Chemistry Letters, vol. 14, no. 27, American Chemical Society, 2023, pp. 6309–14, doi:10.1021/acs.jpclett.3c01158. short: Y. Wei, A. Volosniev, D. Lorenc, A.A. Zhumekenov, O.M. Bakr, M. Lemeshko, Z. Alpichshev, The Journal of Physical Chemistry Letters 14 (2023) 6309–6314. date_created: 2023-07-18T11:13:17Z date_published: 2023-07-05T00:00:00Z date_updated: 2023-07-19T06:59:19Z day: '05' ddc: - '530' department: - _id: MiLe - _id: ZhAl doi: 10.1021/acs.jpclett.3c01158 ec_funded: 1 external_id: arxiv: - '2304.14198' isi: - '001022811500001' file: - access_level: open_access checksum: c0c040063f06a51b9c463adc504f1a23 content_type: application/pdf creator: dernst date_created: 2023-07-19T06:55:39Z date_updated: 2023-07-19T06:55:39Z file_id: '13253' file_name: 2023_JourPhysChemistry_Wei.pdf file_size: 2121252 relation: main_file success: 1 file_date_updated: 2023-07-19T06:55:39Z has_accepted_license: '1' intvolume: ' 14' isi: 1 issue: '27' keyword: - General Materials Science - Physical and Theoretical Chemistry language: - iso: eng month: '07' oa: 1 oa_version: Published Version page: 6309-6314 project: - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: The Journal of Physical Chemistry Letters publication_identifier: eissn: - 1948-7185 publication_status: published publisher: American Chemical Society quality_controlled: '1' status: public title: Bond polarizability as a probe of local crystal fields in hybrid lead-halide perovskites tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 14 year: '2023' ... --- _id: '12723' abstract: - lang: eng text: 'Lead halide perovskites enjoy a number of remarkable optoelectronic properties. To explain their origin, it is necessary to study how electromagnetic fields interact with these systems. We address this problem here by studying two classical quantities: Faraday rotation and the complex refractive index in a paradigmatic perovskite CH3NH3PbBr3 in a broad wavelength range. We find that the minimal coupling of electromagnetic fields to the k⋅p Hamiltonian is insufficient to describe the observed data even on the qualitative level. To amend this, we demonstrate that there exists a relevant atomic-level coupling between electromagnetic fields and the spin degree of freedom. This spin-electric coupling allows for quantitative description of a number of previous as well as present experimental data. In particular, we use it here to show that the Faraday effect in lead halide perovskites is dominated by the Zeeman splitting of the energy levels and has a substantial beyond-Becquerel contribution. Finally, we present general symmetry-based phenomenological arguments that in the low-energy limit our effective model includes all basis coupling terms to the electromagnetic field in the linear order.' article_number: '106901' article_processing_charge: No article_type: original author: - first_name: Artem full_name: Volosniev, Artem id: 37D278BC-F248-11E8-B48F-1D18A9856A87 last_name: Volosniev orcid: 0000-0003-0393-5525 - first_name: Abhishek full_name: Shiva Kumar, Abhishek id: 5e9a6931-eb97-11eb-a6c2-e96f7058d77a last_name: Shiva Kumar - first_name: Dusan full_name: Lorenc, Dusan id: 40D8A3E6-F248-11E8-B48F-1D18A9856A87 last_name: Lorenc - first_name: Younes full_name: Ashourishokri, Younes id: e32c111f-f6e0-11ea-865d-eb955baea334 last_name: Ashourishokri - first_name: Ayan A. full_name: Zhumekenov, Ayan A. last_name: Zhumekenov - first_name: Osman M. full_name: Bakr, Osman M. last_name: Bakr - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Zhanybek full_name: Alpichshev, Zhanybek id: 45E67A2A-F248-11E8-B48F-1D18A9856A87 last_name: Alpichshev orcid: 0000-0002-7183-5203 citation: ama: Volosniev A, Shiva Kumar A, Lorenc D, et al. Spin-electric coupling in lead halide perovskites. Physical Review Letters. 2023;130(10). doi:10.1103/physrevlett.130.106901 apa: Volosniev, A., Shiva Kumar, A., Lorenc, D., Ashourishokri, Y., Zhumekenov, A. A., Bakr, O. M., … Alpichshev, Z. (2023). Spin-electric coupling in lead halide perovskites. Physical Review Letters. American Physical Society. https://doi.org/10.1103/physrevlett.130.106901 chicago: Volosniev, Artem, Abhishek Shiva Kumar, Dusan Lorenc, Younes Ashourishokri, Ayan A. Zhumekenov, Osman M. Bakr, Mikhail Lemeshko, and Zhanybek Alpichshev. “Spin-Electric Coupling in Lead Halide Perovskites.” Physical Review Letters. American Physical Society, 2023. https://doi.org/10.1103/physrevlett.130.106901. ieee: A. Volosniev et al., “Spin-electric coupling in lead halide perovskites,” Physical Review Letters, vol. 130, no. 10. American Physical Society, 2023. ista: Volosniev A, Shiva Kumar A, Lorenc D, Ashourishokri Y, Zhumekenov AA, Bakr OM, Lemeshko M, Alpichshev Z. 2023. Spin-electric coupling in lead halide perovskites. Physical Review Letters. 130(10), 106901. mla: Volosniev, Artem, et al. “Spin-Electric Coupling in Lead Halide Perovskites.” Physical Review Letters, vol. 130, no. 10, 106901, American Physical Society, 2023, doi:10.1103/physrevlett.130.106901. short: A. Volosniev, A. Shiva Kumar, D. Lorenc, Y. Ashourishokri, A.A. Zhumekenov, O.M. Bakr, M. Lemeshko, Z. Alpichshev, Physical Review Letters 130 (2023). date_created: 2023-03-14T13:11:59Z date_published: 2023-03-10T00:00:00Z date_updated: 2023-08-01T13:39:04Z day: '10' department: - _id: GradSch - _id: ZhAl - _id: MiLe doi: 10.1103/physrevlett.130.106901 external_id: arxiv: - '2203.09443' isi: - '000982435900002' intvolume: ' 130' isi: 1 issue: '10' keyword: - General Physics and Astronomy language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2203.09443 month: '03' oa: 1 oa_version: Preprint publication: Physical Review Letters publication_identifier: eissn: - 1079-7114 issn: - 0031-9007 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Spin-electric coupling in lead halide perovskites type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 130 year: '2023' ... --- _id: '12724' abstract: - lang: eng text: 'We use general symmetry-based arguments to construct an effective model suitable for studying optical properties of lead halide perovskites. To build the model, we identify an atomic-level interaction between electromagnetic fields and the spin degree of freedom that should be added to a minimally coupled k⋅p Hamiltonian. As a first application, we study two basic optical characteristics of the material: the Verdet constant and the refractive index. Beyond these linear characteristics of the material, the model is suitable for calculating nonlinear effects such as the third-order optical susceptibility. Analysis of this quantity shows that the geometrical properties of the spin-electric term imply isotropic optical response of the system, and that optical anisotropy of lead halide perovskites is a manifestation of hopping of charge carriers. To illustrate this, we discuss third-harmonic generation.' article_number: '125201' article_processing_charge: No article_type: original author: - first_name: Artem full_name: Volosniev, Artem id: 37D278BC-F248-11E8-B48F-1D18A9856A87 last_name: Volosniev orcid: 0000-0003-0393-5525 - first_name: Abhishek full_name: Shiva Kumar, Abhishek id: 5e9a6931-eb97-11eb-a6c2-e96f7058d77a last_name: Shiva Kumar - first_name: Dusan full_name: Lorenc, Dusan id: 40D8A3E6-F248-11E8-B48F-1D18A9856A87 last_name: Lorenc - first_name: Younes full_name: Ashourishokri, Younes id: e32c111f-f6e0-11ea-865d-eb955baea334 last_name: Ashourishokri - first_name: Ayan full_name: Zhumekenov, Ayan last_name: Zhumekenov - first_name: Osman M. full_name: Bakr, Osman M. last_name: Bakr - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Zhanybek full_name: Alpichshev, Zhanybek id: 45E67A2A-F248-11E8-B48F-1D18A9856A87 last_name: Alpichshev orcid: 0000-0002-7183-5203 citation: ama: Volosniev A, Shiva Kumar A, Lorenc D, et al. Effective model for studying optical properties of lead halide perovskites. Physical Review B. 2023;107(12). doi:10.1103/physrevb.107.125201 apa: Volosniev, A., Shiva Kumar, A., Lorenc, D., Ashourishokri, Y., Zhumekenov, A., Bakr, O. M., … Alpichshev, Z. (2023). Effective model for studying optical properties of lead halide perovskites. Physical Review B. American Physical Society. https://doi.org/10.1103/physrevb.107.125201 chicago: Volosniev, Artem, Abhishek Shiva Kumar, Dusan Lorenc, Younes Ashourishokri, Ayan Zhumekenov, Osman M. Bakr, Mikhail Lemeshko, and Zhanybek Alpichshev. “Effective Model for Studying Optical Properties of Lead Halide Perovskites.” Physical Review B. American Physical Society, 2023. https://doi.org/10.1103/physrevb.107.125201. ieee: A. Volosniev et al., “Effective model for studying optical properties of lead halide perovskites,” Physical Review B, vol. 107, no. 12. American Physical Society, 2023. ista: Volosniev A, Shiva Kumar A, Lorenc D, Ashourishokri Y, Zhumekenov A, Bakr OM, Lemeshko M, Alpichshev Z. 2023. Effective model for studying optical properties of lead halide perovskites. Physical Review B. 107(12), 125201. mla: Volosniev, Artem, et al. “Effective Model for Studying Optical Properties of Lead Halide Perovskites.” Physical Review B, vol. 107, no. 12, 125201, American Physical Society, 2023, doi:10.1103/physrevb.107.125201. short: A. Volosniev, A. Shiva Kumar, D. Lorenc, Y. Ashourishokri, A. Zhumekenov, O.M. Bakr, M. Lemeshko, Z. Alpichshev, Physical Review B 107 (2023). date_created: 2023-03-14T13:13:05Z date_published: 2023-03-15T00:00:00Z date_updated: 2023-08-01T13:39:47Z day: '15' department: - _id: GradSch - _id: ZhAl - _id: MiLe doi: 10.1103/physrevb.107.125201 external_id: arxiv: - '2204.04022' isi: - '000972602200006' intvolume: ' 107' isi: 1 issue: '12' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2204.04022 month: '03' oa: 1 oa_version: Preprint publication: Physical Review B publication_identifier: eissn: - 2469-9969 issn: - 2469-9950 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Effective model for studying optical properties of lead halide perovskites type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 107 year: '2023' ... --- _id: '12788' abstract: - lang: eng text: We show that the simplest of existing molecules—closed-shell diatomics not interacting with one another—host topological charges when driven by periodic far-off-resonant laser pulses. A periodically kicked molecular rotor can be mapped onto a “crystalline” lattice in angular momentum space. This allows us to define quasimomenta and the band structure in the Floquet representation, by analogy with the Bloch waves of solid-state physics. Applying laser pulses spaced by 1/3 of the molecular rotational period creates a lattice with three atoms per unit cell with staggered hopping. Within the synthetic dimension of the laser strength, we discover Dirac cones with topological charges. These Dirac cones, topologically protected by reflection and time-reversal symmetry, are reminiscent of (although not equivalent to) that seen in graphene. They—and the corresponding edge states—are broadly tunable by adjusting the laser strength and can be observed in present-day experiments by measuring molecular alignment and populations of rotational levels. This paves the way to study controllable topological physics in gas-phase experiments with small molecules as well as to classify dynamical molecular states by their topological invariants. acknowledgement: M. L. acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). article_number: '103202' article_processing_charge: No article_type: original author: - first_name: Volker full_name: Karle, Volker id: D7C012AE-D7ED-11E9-95E8-1EC5E5697425 last_name: Karle - first_name: Areg full_name: Ghazaryan, Areg id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87 last_name: Ghazaryan orcid: 0000-0001-9666-3543 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Karle V, Ghazaryan A, Lemeshko M. Topological charges of periodically kicked molecules. Physical Review Letters. 2023;130(10). doi:10.1103/PhysRevLett.130.103202 apa: Karle, V., Ghazaryan, A., & Lemeshko, M. (2023). Topological charges of periodically kicked molecules. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.130.103202 chicago: Karle, Volker, Areg Ghazaryan, and Mikhail Lemeshko. “Topological Charges of Periodically Kicked Molecules.” Physical Review Letters. American Physical Society, 2023. https://doi.org/10.1103/PhysRevLett.130.103202. ieee: V. Karle, A. Ghazaryan, and M. Lemeshko, “Topological charges of periodically kicked molecules,” Physical Review Letters, vol. 130, no. 10. American Physical Society, 2023. ista: Karle V, Ghazaryan A, Lemeshko M. 2023. Topological charges of periodically kicked molecules. Physical Review Letters. 130(10), 103202. mla: Karle, Volker, et al. “Topological Charges of Periodically Kicked Molecules.” Physical Review Letters, vol. 130, no. 10, 103202, American Physical Society, 2023, doi:10.1103/PhysRevLett.130.103202. short: V. Karle, A. Ghazaryan, M. Lemeshko, Physical Review Letters 130 (2023). date_created: 2023-04-02T22:01:10Z date_published: 2023-03-10T00:00:00Z date_updated: 2023-08-01T14:02:06Z day: '10' department: - _id: MiLe doi: 10.1103/PhysRevLett.130.103202 ec_funded: 1 external_id: arxiv: - '2206.07067' isi: - '000957635500003' intvolume: ' 130' isi: 1 issue: '10' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2206.07067 month: '03' oa: 1 oa_version: Preprint project: - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: Physical Review Letters publication_identifier: eissn: - 1079-7114 issn: - 0031-9007 publication_status: published publisher: American Physical Society quality_controlled: '1' related_material: link: - description: News on the ISTA website relation: press_release url: https://ista.ac.at/en/news/topology-of-rotating-molecules/ scopus_import: '1' status: public title: Topological charges of periodically kicked molecules type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 130 year: '2023' ... --- _id: '12831' abstract: - lang: eng text: The angulon, a quasiparticle formed by a quantum rotor dressed by the excitations of a many-body bath, can be used to describe an impurity rotating in a fluid or solid environment. Here, we propose a coherent state ansatz in the co-rotating frame, which provides a comprehensive theoretical description of angulons. We reveal the quasiparticle properties, such as energies, quasiparticle weights, and spectral functions, and show that our ansatz yields a persistent decrease in the impurity’s rotational constant due to many-body dressing, which is consistent with experimental observations. From our study, a picture of the angulon emerges as an effective spin interacting with a magnetic field that is self-consistently generated by the molecule’s rotation. Moreover, we discuss rotational spectroscopy, which focuses on the response of rotating molecules to a laser perturbation in the linear response regime. Importantly, we take into account initial-state interactions that have been neglected in prior studies and reveal their impact on the excitation spectrum. To examine the angulon instability regime, we use a single-excitation ansatz and obtain results consistent with experiments, in which a broadening of spectral lines is observed while phonon wings remain highly suppressed due to initial-state interactions. acknowledgement: We thank Ignacio Cirac, Christian Schmauder, and Henrik Stapelfeldt for their valuable discussions. We acknowledge support by the Max Planck Society and the Deutsche Forschungsgemeinschaft under Germany’s Excellence Strategy EXC 2181/1—390900948 (the Heidelberg STRUCTURES Excellence Cluster). M.L. acknowledges support from the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). T.S. is supported by the National Key Research and Development Program of China (Grant No. 2017YFA0718304) and the National Natural Science Foundation of China (Grant Nos. 11974363, 12135018, and 12047503). article_number: '134301' article_processing_charge: No article_type: original author: - first_name: Zhongda full_name: Zeng, Zhongda last_name: Zeng - first_name: Enderalp full_name: Yakaboylu, Enderalp id: 38CB71F6-F248-11E8-B48F-1D18A9856A87 last_name: Yakaboylu orcid: 0000-0001-5973-0874 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Tao full_name: Shi, Tao last_name: Shi - first_name: Richard full_name: Schmidt, Richard last_name: Schmidt citation: ama: Zeng Z, Yakaboylu E, Lemeshko M, Shi T, Schmidt R. Variational theory of angulons and their rotational spectroscopy. The Journal of Chemical Physics. 2023;158(13). doi:10.1063/5.0135893 apa: Zeng, Z., Yakaboylu, E., Lemeshko, M., Shi, T., & Schmidt, R. (2023). Variational theory of angulons and their rotational spectroscopy. The Journal of Chemical Physics. American Institute of Physics. https://doi.org/10.1063/5.0135893 chicago: Zeng, Zhongda, Enderalp Yakaboylu, Mikhail Lemeshko, Tao Shi, and Richard Schmidt. “Variational Theory of Angulons and Their Rotational Spectroscopy.” The Journal of Chemical Physics. American Institute of Physics, 2023. https://doi.org/10.1063/5.0135893. ieee: Z. Zeng, E. Yakaboylu, M. Lemeshko, T. Shi, and R. Schmidt, “Variational theory of angulons and their rotational spectroscopy,” The Journal of Chemical Physics, vol. 158, no. 13. American Institute of Physics, 2023. ista: Zeng Z, Yakaboylu E, Lemeshko M, Shi T, Schmidt R. 2023. Variational theory of angulons and their rotational spectroscopy. The Journal of Chemical Physics. 158(13), 134301. mla: Zeng, Zhongda, et al. “Variational Theory of Angulons and Their Rotational Spectroscopy.” The Journal of Chemical Physics, vol. 158, no. 13, 134301, American Institute of Physics, 2023, doi:10.1063/5.0135893. short: Z. Zeng, E. Yakaboylu, M. Lemeshko, T. Shi, R. Schmidt, The Journal of Chemical Physics 158 (2023). date_created: 2023-04-16T22:01:07Z date_published: 2023-04-07T00:00:00Z date_updated: 2023-08-01T14:08:47Z day: '07' ddc: - '530' department: - _id: MiLe doi: 10.1063/5.0135893 ec_funded: 1 external_id: arxiv: - '2211.08070' isi: - '000970038800001' file: - access_level: open_access checksum: 8d801babea4df48e08895c76571bb19e content_type: application/pdf creator: dernst date_created: 2023-04-17T07:28:38Z date_updated: 2023-04-17T07:28:38Z file_id: '12841' file_name: 2023_JourChemicalPhysics_Zeng.pdf file_size: 7388057 relation: main_file success: 1 file_date_updated: 2023-04-17T07:28:38Z has_accepted_license: '1' intvolume: ' 158' isi: 1 issue: '13' language: - iso: eng month: '04' oa: 1 oa_version: Published Version project: - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: The Journal of Chemical Physics publication_identifier: eissn: - 1089-7690 publication_status: published publisher: American Institute of Physics quality_controlled: '1' scopus_import: '1' status: public title: Variational theory of angulons and their rotational spectroscopy tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 158 year: '2023' ... --- _id: '13233' abstract: - lang: eng text: We study the impact of finite-range physics on the zero-range-model analysis of three-body recombination in ultracold atoms. We find that temperature dependence of the zero-range parameters can vary from one set of measurements to another as it may be driven by the distribution of error bars in the experiment, and not by the underlying three-body physics. To study finite-temperature effects in three-body recombination beyond the zero-range physics, we introduce and examine a finite-range model based upon a hyperspherical formalism. The systematic error discussed in this Letter may provide a significant contribution to the error bars of measured three-body parameters. acknowledgement: We thank Jan Arlt, Hans-Werner Hammer, and Karsten Riisager for useful discussions. M.L. acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). article_number: L061304 article_processing_charge: No article_type: letter_note author: - first_name: Sofya full_name: Agafonova, Sofya id: 09501ff6-dca7-11ea-a8ae-b3e0b9166e80 last_name: Agafonova - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Artem full_name: Volosniev, Artem id: 37D278BC-F248-11E8-B48F-1D18A9856A87 last_name: Volosniev orcid: 0000-0003-0393-5525 citation: ama: Agafonova S, Lemeshko M, Volosniev A. Finite-range bias in fitting three-body loss to the zero-range model. Physical Review A. 2023;107(6). doi:10.1103/PhysRevA.107.L061304 apa: Agafonova, S., Lemeshko, M., & Volosniev, A. (2023). Finite-range bias in fitting three-body loss to the zero-range model. Physical Review A. American Physical Society. https://doi.org/10.1103/PhysRevA.107.L061304 chicago: Agafonova, Sofya, Mikhail Lemeshko, and Artem Volosniev. “Finite-Range Bias in Fitting Three-Body Loss to the Zero-Range Model.” Physical Review A. American Physical Society, 2023. https://doi.org/10.1103/PhysRevA.107.L061304. ieee: S. Agafonova, M. Lemeshko, and A. Volosniev, “Finite-range bias in fitting three-body loss to the zero-range model,” Physical Review A, vol. 107, no. 6. American Physical Society, 2023. ista: Agafonova S, Lemeshko M, Volosniev A. 2023. Finite-range bias in fitting three-body loss to the zero-range model. Physical Review A. 107(6), L061304. mla: Agafonova, Sofya, et al. “Finite-Range Bias in Fitting Three-Body Loss to the Zero-Range Model.” Physical Review A, vol. 107, no. 6, L061304, American Physical Society, 2023, doi:10.1103/PhysRevA.107.L061304. short: S. Agafonova, M. Lemeshko, A. Volosniev, Physical Review A 107 (2023). date_created: 2023-07-16T22:01:10Z date_published: 2023-06-20T00:00:00Z date_updated: 2023-08-02T06:31:52Z day: '20' department: - _id: MiLe - _id: OnHo doi: 10.1103/PhysRevA.107.L061304 ec_funded: 1 external_id: arxiv: - '2302.01022' isi: - '001019748000005' intvolume: ' 107' isi: 1 issue: '6' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2302.01022 month: '06' oa: 1 oa_version: Preprint project: - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: Physical Review A publication_identifier: eissn: - 2469-9934 issn: - 2469-9926 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Finite-range bias in fitting three-body loss to the zero-range model type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 107 year: '2023' ... --- _id: '13966' abstract: - lang: eng text: We present a low-scaling diagrammatic Monte Carlo approach to molecular correlation energies. Using combinatorial graph theory to encode many-body Hugenholtz diagrams, we sample the Møller-Plesset (MPn) perturbation series, obtaining accurate correlation energies up to n=5, with quadratic scaling in the number of basis functions. Our technique reduces the computational complexity of the molecular many-fermion correlation problem, opening up the possibility of low-scaling, accurate stochastic computations for a wide class of many-body systems described by Hugenholtz diagrams. acknowledgement: We acknowledge stimulating discussions with Sergey Varganov, Artur Izmaylov, Jacek Kłos, Piotr Żuchowski, Dominika Zgid, Nikolay Prokof'ev, Boris Svistunov, Robert Parrish, and Andreas Heßelmann. G.B. and Q.P.H. acknowledge support from the Austrian Science Fund (FWF) under Projects No. M2641-N27 and No. M2751. M.L. acknowledges support by the FWF under Project No. P29902-N27, and by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). T.V.T. was supported by the NSF CAREER award No. PHY-2045681. This work is supported by the German Research Foundation (DFG) under Germany's Excellence Strategy EXC2181/1-390900948 (the Heidelberg STRUCTURES Excellence Cluster). The authors acknowledge support by the state of Baden-Württemberg through bwHPC. article_number: '045115' article_processing_charge: No article_type: original author: - first_name: Giacomo full_name: Bighin, Giacomo id: 4CA96FD4-F248-11E8-B48F-1D18A9856A87 last_name: Bighin orcid: 0000-0001-8823-9777 - first_name: Quoc P full_name: Ho, Quoc P id: 3DD82E3C-F248-11E8-B48F-1D18A9856A87 last_name: Ho - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: T. V. full_name: Tscherbul, T. V. last_name: Tscherbul citation: ama: 'Bighin G, Ho QP, Lemeshko M, Tscherbul TV. Diagrammatic Monte Carlo for electronic correlation in molecules: High-order many-body perturbation theory with low scaling. Physical Review B. 2023;108(4). doi:10.1103/PhysRevB.108.045115' apa: 'Bighin, G., Ho, Q. P., Lemeshko, M., & Tscherbul, T. V. (2023). Diagrammatic Monte Carlo for electronic correlation in molecules: High-order many-body perturbation theory with low scaling. Physical Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.108.045115' chicago: 'Bighin, Giacomo, Quoc P Ho, Mikhail Lemeshko, and T. V. Tscherbul. “Diagrammatic Monte Carlo for Electronic Correlation in Molecules: High-Order Many-Body Perturbation Theory with Low Scaling.” Physical Review B. American Physical Society, 2023. https://doi.org/10.1103/PhysRevB.108.045115.' ieee: 'G. Bighin, Q. P. Ho, M. Lemeshko, and T. V. Tscherbul, “Diagrammatic Monte Carlo for electronic correlation in molecules: High-order many-body perturbation theory with low scaling,” Physical Review B, vol. 108, no. 4. American Physical Society, 2023.' ista: 'Bighin G, Ho QP, Lemeshko M, Tscherbul TV. 2023. Diagrammatic Monte Carlo for electronic correlation in molecules: High-order many-body perturbation theory with low scaling. Physical Review B. 108(4), 045115.' mla: 'Bighin, Giacomo, et al. “Diagrammatic Monte Carlo for Electronic Correlation in Molecules: High-Order Many-Body Perturbation Theory with Low Scaling.” Physical Review B, vol. 108, no. 4, 045115, American Physical Society, 2023, doi:10.1103/PhysRevB.108.045115.' short: G. Bighin, Q.P. Ho, M. Lemeshko, T.V. Tscherbul, Physical Review B 108 (2023). date_created: 2023-08-06T22:01:10Z date_published: 2023-07-15T00:00:00Z date_updated: 2023-08-07T08:41:29Z day: '15' department: - _id: MiLe - _id: TaHa doi: 10.1103/PhysRevB.108.045115 ec_funded: 1 external_id: arxiv: - '2203.12666' intvolume: ' 108' issue: '4' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2203.12666 month: '07' oa: 1 oa_version: Preprint project: - _id: 26986C82-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: M02641 name: A path-integral approach to composite impurities - _id: 26B96266-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: M02751 name: Algebro-Geometric Applications of Factorization Homology - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: Physical Review B publication_identifier: eissn: - 2469-9969 issn: - 2469-9950 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: 'Diagrammatic Monte Carlo for electronic correlation in molecules: High-order many-body perturbation theory with low scaling' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 108 year: '2023' ... --- _id: '14321' abstract: - lang: eng text: We demonstrate the possibility of a coupling between the magnetization direction of a ferromagnet and the tilting angle of adsorbed achiral molecules. To illustrate the mechanism of the coupling, we analyze a minimal Stoner model that includes Rashba spin–orbit coupling due to the electric field on the surface of the ferromagnet. The proposed mechanism allows us to study magnetic anisotropy of the system with an extended Stoner–Wohlfarth model and argue that adsorbed achiral molecules can change magnetocrystalline anisotropy of the substrate. Our research aims to motivate further experimental studies of the current-free chirality induced spin selectivity effect involving both enantiomers. acknowledgement: "We thank Zhanybek Alpichshev, Mohammad Reza Safari, Binghai Yan, and Yossi Paltiel for enlightening discussions.\r\nM.L. acknowledges support from the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). A. C. received funding from the European Union’s Horizon Europe research and innovation program under the Marie Skłodowska-Curie Grant Agreement No. 101062862 - NeqMolRot." article_number: '104103' article_processing_charge: Yes (in subscription journal) article_type: original author: - first_name: Ragheed full_name: Al Hyder, Ragheed id: d1c405be-ae15-11ed-8510-ccf53278162e last_name: Al Hyder - first_name: Alberto full_name: Cappellaro, Alberto id: 9d13b3cb-30a2-11eb-80dc-f772505e8660 last_name: Cappellaro orcid: 0000-0001-6110-2359 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Artem full_name: Volosniev, Artem id: 37D278BC-F248-11E8-B48F-1D18A9856A87 last_name: Volosniev orcid: 0000-0003-0393-5525 citation: ama: Al Hyder R, Cappellaro A, Lemeshko M, Volosniev A. Achiral dipoles on a ferromagnet can affect its magnetization direction. The Journal of Chemical Physics. 2023;159(10). doi:10.1063/5.0165806 apa: Al Hyder, R., Cappellaro, A., Lemeshko, M., & Volosniev, A. (2023). Achiral dipoles on a ferromagnet can affect its magnetization direction. The Journal of Chemical Physics. AIP Publishing. https://doi.org/10.1063/5.0165806 chicago: Al Hyder, Ragheed, Alberto Cappellaro, Mikhail Lemeshko, and Artem Volosniev. “Achiral Dipoles on a Ferromagnet Can Affect Its Magnetization Direction.” The Journal of Chemical Physics. AIP Publishing, 2023. https://doi.org/10.1063/5.0165806. ieee: R. Al Hyder, A. Cappellaro, M. Lemeshko, and A. Volosniev, “Achiral dipoles on a ferromagnet can affect its magnetization direction,” The Journal of Chemical Physics, vol. 159, no. 10. AIP Publishing, 2023. ista: Al Hyder R, Cappellaro A, Lemeshko M, Volosniev A. 2023. Achiral dipoles on a ferromagnet can affect its magnetization direction. The Journal of Chemical Physics. 159(10), 104103. mla: Al Hyder, Ragheed, et al. “Achiral Dipoles on a Ferromagnet Can Affect Its Magnetization Direction.” The Journal of Chemical Physics, vol. 159, no. 10, 104103, AIP Publishing, 2023, doi:10.1063/5.0165806. short: R. Al Hyder, A. Cappellaro, M. Lemeshko, A. Volosniev, The Journal of Chemical Physics 159 (2023). date_created: 2023-09-13T09:25:09Z date_published: 2023-09-11T00:00:00Z date_updated: 2023-09-20T09:48:12Z day: '11' ddc: - '530' department: - _id: MiLe doi: 10.1063/5.0165806 ec_funded: 1 external_id: arxiv: - '2306.17592' pmid: - '37694742' file: - access_level: open_access checksum: 507ab65ab29e2c987c94cabad7c5370b content_type: application/pdf creator: acappell date_created: 2023-09-13T09:34:20Z date_updated: 2023-09-13T09:34:20Z file_id: '14322' file_name: 104103_1_5.0165806.pdf file_size: 5749653 relation: main_file success: 1 file_date_updated: 2023-09-13T09:34:20Z has_accepted_license: '1' intvolume: ' 159' issue: '10' keyword: - Physical and Theoretical Chemistry - General Physics and Astronomy language: - iso: eng month: '09' oa: 1 oa_version: Published Version pmid: 1 project: - _id: bd7b5202-d553-11ed-ba76-9b1c1b258338 grant_number: '101062862' name: Non-equilibrium Field Theory of Molecular Rotations - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: The Journal of Chemical Physics publication_identifier: eissn: - 1089-7690 issn: - 0021-9606 publication_status: published publisher: AIP Publishing quality_controlled: '1' scopus_import: '1' status: public title: Achiral dipoles on a ferromagnet can affect its magnetization direction tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 159 year: '2023' ... --- _id: '14037' abstract: - lang: eng text: 'Traditionally, nuclear spin is not considered to affect biological processes. Recently, this has changed as isotopic fractionation that deviates from classical mass dependence was reported both in vitro and in vivo. In these cases, the isotopic effect correlates with the nuclear magnetic spin. Here, we show nuclear spin effects using stable oxygen isotopes (16O, 17O, and 18O) in two separate setups: an artificial dioxygen production system and biological aquaporin channels in cells. We observe that oxygen dynamics in chiral environments (in particular its transport) depend on nuclear spin, suggesting future applications for controlled isotope separation to be used, for instance, in NMR. To demonstrate the mechanism behind our findings, we formulate theoretical models based on a nuclear-spin-enhanced switch between electronic spin states. Accounting for the role of nuclear spin in biology can provide insights into the role of quantum effects in living systems and help inspire the development of future biotechnology solutions.' acknowledgement: N.M.-S. acknowledges the support of the Ministry of Energy, Israel, as part of the scholarship program for graduate students in the fields of energy. M.L. acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). Y.P. acknowledges the support of the Ministry of Innovation, Science and Technology, Israel Grant No. 1001593872. Y.P acknowledges the support of the BSF-NSF 094 Grant No. 2022503. article_number: e2300828120 article_processing_charge: Yes (in subscription journal) article_type: original author: - first_name: Ofek full_name: Vardi, Ofek last_name: Vardi - first_name: Naama full_name: Maroudas-Sklare, Naama last_name: Maroudas-Sklare - first_name: Yuval full_name: Kolodny, Yuval last_name: Kolodny - first_name: Artem full_name: Volosniev, Artem id: 37D278BC-F248-11E8-B48F-1D18A9856A87 last_name: Volosniev orcid: 0000-0003-0393-5525 - first_name: Amijai full_name: Saragovi, Amijai last_name: Saragovi - first_name: Nir full_name: Galili, Nir last_name: Galili - first_name: Stav full_name: Ferrera, Stav last_name: Ferrera - first_name: Areg full_name: Ghazaryan, Areg id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87 last_name: Ghazaryan orcid: 0000-0001-9666-3543 - first_name: Nir full_name: Yuran, Nir last_name: Yuran - first_name: Hagit P. full_name: Affek, Hagit P. last_name: Affek - first_name: Boaz full_name: Luz, Boaz last_name: Luz - first_name: Yonaton full_name: Goldsmith, Yonaton last_name: Goldsmith - first_name: Nir full_name: Keren, Nir last_name: Keren - first_name: Shira full_name: Yochelis, Shira last_name: Yochelis - first_name: Itay full_name: Halevy, Itay last_name: Halevy - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Yossi full_name: Paltiel, Yossi last_name: Paltiel citation: ama: Vardi O, Maroudas-Sklare N, Kolodny Y, et al. Nuclear spin effects in biological processes. Proceedings of the National Academy of Sciences of the United States of America. 2023;120(32). doi:10.1073/pnas.2300828120 apa: Vardi, O., Maroudas-Sklare, N., Kolodny, Y., Volosniev, A., Saragovi, A., Galili, N., … Paltiel, Y. (2023). Nuclear spin effects in biological processes. Proceedings of the National Academy of Sciences of the United States of America. National Academy of Sciences. https://doi.org/10.1073/pnas.2300828120 chicago: Vardi, Ofek, Naama Maroudas-Sklare, Yuval Kolodny, Artem Volosniev, Amijai Saragovi, Nir Galili, Stav Ferrera, et al. “Nuclear Spin Effects in Biological Processes.” Proceedings of the National Academy of Sciences of the United States of America. National Academy of Sciences, 2023. https://doi.org/10.1073/pnas.2300828120. ieee: O. Vardi et al., “Nuclear spin effects in biological processes,” Proceedings of the National Academy of Sciences of the United States of America, vol. 120, no. 32. National Academy of Sciences, 2023. ista: Vardi O, Maroudas-Sklare N, Kolodny Y, Volosniev A, Saragovi A, Galili N, Ferrera S, Ghazaryan A, Yuran N, Affek HP, Luz B, Goldsmith Y, Keren N, Yochelis S, Halevy I, Lemeshko M, Paltiel Y. 2023. Nuclear spin effects in biological processes. Proceedings of the National Academy of Sciences of the United States of America. 120(32), e2300828120. mla: Vardi, Ofek, et al. “Nuclear Spin Effects in Biological Processes.” Proceedings of the National Academy of Sciences of the United States of America, vol. 120, no. 32, e2300828120, National Academy of Sciences, 2023, doi:10.1073/pnas.2300828120. short: O. Vardi, N. Maroudas-Sklare, Y. Kolodny, A. Volosniev, A. Saragovi, N. Galili, S. Ferrera, A. Ghazaryan, N. Yuran, H.P. Affek, B. Luz, Y. Goldsmith, N. Keren, S. Yochelis, I. Halevy, M. Lemeshko, Y. Paltiel, Proceedings of the National Academy of Sciences of the United States of America 120 (2023). date_created: 2023-08-13T22:01:12Z date_published: 2023-07-31T00:00:00Z date_updated: 2023-10-17T11:45:25Z day: '31' ddc: - '530' department: - _id: MiLe doi: 10.1073/pnas.2300828120 ec_funded: 1 external_id: pmid: - '37523549' file: - access_level: open_access checksum: a5ed64788a5acef9b9a300a26fa5a177 content_type: application/pdf creator: dernst date_created: 2023-08-14T07:43:45Z date_updated: 2023-08-14T07:43:45Z file_id: '14047' file_name: 2023_PNAS_Vardi.pdf file_size: 1003092 relation: main_file success: 1 file_date_updated: 2023-08-14T07:43:45Z has_accepted_license: '1' intvolume: ' 120' issue: '32' language: - iso: eng month: '07' oa: 1 oa_version: Published Version pmid: 1 project: - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: Proceedings of the National Academy of Sciences of the United States of America publication_identifier: eissn: - 1091-6490 publication_status: published publisher: National Academy of Sciences quality_controlled: '1' scopus_import: '1' status: public title: Nuclear spin effects in biological processes tmp: image: /images/cc_by_nc_nd.png legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) short: CC BY-NC-ND (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 120 year: '2023' ... --- _id: '14486' abstract: - lang: eng text: We present a minimal model of ferroelectric large polarons, which are suggested as one of the mechanisms responsible for the unique charge transport properties of hybrid perovskites. We demonstrate that short-ranged charge–rotor interactions lead to long-range ferroelectric ordering of rotors, which strongly affects the carrier mobility. In the nonperturbative regime, where our theory cannot be reduced to any of the earlier models, we reveal that the polaron is characterized by large coherence length and a roughly tenfold increase of the effective mass as compared to the bare mass. These results are in good agreement with other theoretical predictions for ferroelectric polarons. Our model establishes a general phenomenological framework for ferroelectric polarons providing the starting point for future studies of their role in the transport properties of hybrid organic-inorganic perovskites. acknowledgement: We thank Zh. Alpichshev, A. Volosniev, and A. V. Zampetaki for fruitful discussions and comments. This project received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 101034413. M.L. acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). article_number: '043016' article_processing_charge: Yes article_type: original author: - first_name: Georgios full_name: Koutentakis, Georgios id: d7b23d3a-9e21-11ec-b482-f76739596b95 last_name: Koutentakis - first_name: Areg full_name: Ghazaryan, Areg id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87 last_name: Ghazaryan orcid: 0000-0001-9666-3543 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Koutentakis G, Ghazaryan A, Lemeshko M. Rotor lattice model of ferroelectric large polarons. Physical Review Research. 2023;5(4). doi:10.1103/PhysRevResearch.5.043016 apa: Koutentakis, G., Ghazaryan, A., & Lemeshko, M. (2023). Rotor lattice model of ferroelectric large polarons. Physical Review Research. American Physical Society. https://doi.org/10.1103/PhysRevResearch.5.043016 chicago: Koutentakis, Georgios, Areg Ghazaryan, and Mikhail Lemeshko. “Rotor Lattice Model of Ferroelectric Large Polarons.” Physical Review Research. American Physical Society, 2023. https://doi.org/10.1103/PhysRevResearch.5.043016. ieee: G. Koutentakis, A. Ghazaryan, and M. Lemeshko, “Rotor lattice model of ferroelectric large polarons,” Physical Review Research, vol. 5, no. 4. American Physical Society, 2023. ista: Koutentakis G, Ghazaryan A, Lemeshko M. 2023. Rotor lattice model of ferroelectric large polarons. Physical Review Research. 5(4), 043016. mla: Koutentakis, Georgios, et al. “Rotor Lattice Model of Ferroelectric Large Polarons.” Physical Review Research, vol. 5, no. 4, 043016, American Physical Society, 2023, doi:10.1103/PhysRevResearch.5.043016. short: G. Koutentakis, A. Ghazaryan, M. Lemeshko, Physical Review Research 5 (2023). date_created: 2023-11-05T23:00:53Z date_published: 2023-10-05T00:00:00Z date_updated: 2023-11-07T07:53:39Z day: '05' ddc: - '530' department: - _id: MiLe doi: 10.1103/PhysRevResearch.5.043016 ec_funded: 1 external_id: arxiv: - '2301.09875' file: - access_level: open_access checksum: cb8de8fed6e09df1a18bd5a5aec5c55c content_type: application/pdf creator: dernst date_created: 2023-11-07T07:52:46Z date_updated: 2023-11-07T07:52:46Z file_id: '14493' file_name: 2023_PhysReviewResearch_Koutentakis.pdf file_size: 1127522 relation: main_file success: 1 file_date_updated: 2023-11-07T07:52:46Z has_accepted_license: '1' intvolume: ' 5' issue: '4' language: - iso: eng month: '10' oa: 1 oa_version: Published Version project: - _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c call_identifier: H2020 grant_number: '101034413' name: 'IST-BRIDGE: International postdoctoral program' - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: Physical Review Research publication_identifier: issn: - 2643-1564 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Rotor lattice model of ferroelectric large polarons tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 5 year: '2023' ... --- _id: '14238' abstract: - lang: eng text: We demonstrate that a sodium dimer, Na2(13Σ+u), residing on the surface of a helium nanodroplet, can be set into rotation by a nonresonant 1.0 ps infrared laser pulse. The time-dependent degree of alignment measured, exhibits a periodic, gradually decreasing structure that deviates qualitatively from that expected for gas-phase dimers. Comparison to alignment dynamics calculated from the time-dependent rotational Schrödinger equation shows that the deviation is due to the alignment dependent interaction between the dimer and the droplet surface. This interaction confines the dimer to the tangential plane of the droplet surface at the point where it resides and is the reason that the observed alignment dynamics is also well described by a 2D quantum rotor model. acknowledgement: H. S. acknowledges support from The Villum Foundation through a Villum Investigator Grant No. 25886. M. L. acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). F. J. and R. E. Z. acknowledge support from the Centre for Scientific Computing, Aarhus and the JKU scientific computing administration, Linz, respectively. article_number: '053201' article_processing_charge: No article_type: original author: - first_name: Lorenz full_name: Kranabetter, Lorenz last_name: Kranabetter - first_name: Henrik H. full_name: Kristensen, Henrik H. last_name: Kristensen - first_name: Areg full_name: Ghazaryan, Areg id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87 last_name: Ghazaryan orcid: 0000-0001-9666-3543 - first_name: Constant A. full_name: Schouder, Constant A. last_name: Schouder - first_name: Adam S. full_name: Chatterley, Adam S. last_name: Chatterley - first_name: Paul full_name: Janssen, Paul last_name: Janssen - first_name: Frank full_name: Jensen, Frank last_name: Jensen - first_name: Robert E. full_name: Zillich, Robert E. last_name: Zillich - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Henrik full_name: Stapelfeldt, Henrik last_name: Stapelfeldt citation: ama: Kranabetter L, Kristensen HH, Ghazaryan A, et al. Nonadiabatic laser-induced alignment dynamics of molecules on a surface. Physical Review Letters. 2023;131(5). doi:10.1103/PhysRevLett.131.053201 apa: Kranabetter, L., Kristensen, H. H., Ghazaryan, A., Schouder, C. A., Chatterley, A. S., Janssen, P., … Stapelfeldt, H. (2023). Nonadiabatic laser-induced alignment dynamics of molecules on a surface. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.131.053201 chicago: Kranabetter, Lorenz, Henrik H. Kristensen, Areg Ghazaryan, Constant A. Schouder, Adam S. Chatterley, Paul Janssen, Frank Jensen, Robert E. Zillich, Mikhail Lemeshko, and Henrik Stapelfeldt. “Nonadiabatic Laser-Induced Alignment Dynamics of Molecules on a Surface.” Physical Review Letters. American Physical Society, 2023. https://doi.org/10.1103/PhysRevLett.131.053201. ieee: L. Kranabetter et al., “Nonadiabatic laser-induced alignment dynamics of molecules on a surface,” Physical Review Letters, vol. 131, no. 5. American Physical Society, 2023. ista: Kranabetter L, Kristensen HH, Ghazaryan A, Schouder CA, Chatterley AS, Janssen P, Jensen F, Zillich RE, Lemeshko M, Stapelfeldt H. 2023. Nonadiabatic laser-induced alignment dynamics of molecules on a surface. Physical Review Letters. 131(5), 053201. mla: Kranabetter, Lorenz, et al. “Nonadiabatic Laser-Induced Alignment Dynamics of Molecules on a Surface.” Physical Review Letters, vol. 131, no. 5, 053201, American Physical Society, 2023, doi:10.1103/PhysRevLett.131.053201. short: L. Kranabetter, H.H. Kristensen, A. Ghazaryan, C.A. Schouder, A.S. Chatterley, P. Janssen, F. Jensen, R.E. Zillich, M. Lemeshko, H. Stapelfeldt, Physical Review Letters 131 (2023). date_created: 2023-08-27T22:01:16Z date_published: 2023-08-04T00:00:00Z date_updated: 2023-12-13T12:18:54Z day: '04' department: - _id: MiLe doi: 10.1103/PhysRevLett.131.053201 ec_funded: 1 external_id: arxiv: - '2308.15247' isi: - '001101784100001' pmid: - '37595218' intvolume: ' 131' isi: 1 issue: '5' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2308.15247 month: '08' oa: 1 oa_version: Preprint pmid: 1 project: - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: Physical Review Letters publication_identifier: eissn: - 1079-7114 issn: - 0031-9007 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Nonadiabatic laser-induced alignment dynamics of molecules on a surface type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 131 year: '2023' ... --- _id: '10845' abstract: - lang: eng text: We study an impurity with a resonance level whose position coincides with the Fermi energy of the surrounding Fermi gas. An impurity causes a rapid variation of the scattering phase shift for fermions at the Fermi surface, introducing a new characteristic length scale into the problem. We investigate manifestations of this length scale in the self-energy of the impurity and in the density of the bath. Our calculations reveal a model-independent deformation of the density of the Fermi gas, which is determined by the width of the resonance. To provide a broader picture, we investigate time evolution of the density in quench dynamics, and study the behavior of the system at finite temperatures. Finally, we briefly discuss implications of our findings for the Fermi-polaron problem. acknowledgement: M.L. acknowledges support by the Austrian Science Fund (FWF), under Project No. P29902-N27, and by the European Research Council (ERC) starting Grant No. 801770 (ANGULON). A.G.V. acknowledges support by European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 754411. article_number: '013160' article_processing_charge: No article_type: original author: - first_name: Mikhail full_name: Maslov, Mikhail id: 2E65BB0E-F248-11E8-B48F-1D18A9856A87 last_name: Maslov orcid: 0000-0003-4074-2570 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Artem full_name: Volosniev, Artem id: 37D278BC-F248-11E8-B48F-1D18A9856A87 last_name: Volosniev orcid: 0000-0003-0393-5525 citation: ama: Maslov M, Lemeshko M, Volosniev A. Impurity with a resonance in the vicinity of the Fermi energy. Physical Review Research. 2022;4. doi:10.1103/PhysRevResearch.4.013160 apa: Maslov, M., Lemeshko, M., & Volosniev, A. (2022). Impurity with a resonance in the vicinity of the Fermi energy. Physical Review Research. American Physical Society. https://doi.org/10.1103/PhysRevResearch.4.013160 chicago: Maslov, Mikhail, Mikhail Lemeshko, and Artem Volosniev. “Impurity with a Resonance in the Vicinity of the Fermi Energy.” Physical Review Research. American Physical Society, 2022. https://doi.org/10.1103/PhysRevResearch.4.013160. ieee: M. Maslov, M. Lemeshko, and A. Volosniev, “Impurity with a resonance in the vicinity of the Fermi energy,” Physical Review Research, vol. 4. American Physical Society, 2022. ista: Maslov M, Lemeshko M, Volosniev A. 2022. Impurity with a resonance in the vicinity of the Fermi energy. Physical Review Research. 4, 013160. mla: Maslov, Mikhail, et al. “Impurity with a Resonance in the Vicinity of the Fermi Energy.” Physical Review Research, vol. 4, 013160, American Physical Society, 2022, doi:10.1103/PhysRevResearch.4.013160. short: M. Maslov, M. Lemeshko, A. Volosniev, Physical Review Research 4 (2022). date_created: 2022-03-13T23:01:46Z date_published: 2022-03-01T00:00:00Z date_updated: 2022-03-14T08:42:24Z day: '01' ddc: - '530' department: - _id: MiLe doi: 10.1103/PhysRevResearch.4.013160 ec_funded: 1 external_id: arxiv: - '2111.13570' file: - access_level: open_access checksum: 62f64b3421a969656ebf52467fa7b6e8 content_type: application/pdf creator: dernst date_created: 2022-03-14T08:38:49Z date_updated: 2022-03-14T08:38:49Z file_id: '10848' file_name: 2022_PhysicalReviewResearch_Maslov.pdf file_size: 1258324 relation: main_file success: 1 file_date_updated: 2022-03-14T08:38:49Z has_accepted_license: '1' intvolume: ' 4' language: - iso: eng month: '03' oa: 1 oa_version: Published Version project: - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' - _id: 260C2330-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '754411' name: ISTplus - Postdoctoral Fellowships publication: Physical Review Research publication_identifier: issn: - 2643-1564 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Impurity with a resonance in the vicinity of the Fermi energy tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 4 year: '2022' ... --- _id: '10771' abstract: - lang: eng text: A critical overview of the theory of the chirality-induced spin selectivity (CISS) effect, that is, phenomena in which the chirality of molecular species imparts significant spin selectivity to various electron processes, is provided. Based on discussions in a recently held workshop, and further work published since, the status of CISS effects—in electron transmission, electron transport, and chemical reactions—is reviewed. For each, a detailed discussion of the state-of-the-art in theoretical understanding is provided and remaining challenges and research opportunities are identified. article_number: '2106629' article_processing_charge: No article_type: review author: - first_name: Ferdinand full_name: Evers, Ferdinand last_name: Evers - first_name: Amnon full_name: Aharony, Amnon last_name: Aharony - first_name: Nir full_name: Bar-Gill, Nir last_name: Bar-Gill - first_name: Ora full_name: Entin-Wohlman, Ora last_name: Entin-Wohlman - first_name: Per full_name: Hedegård, Per last_name: Hedegård - first_name: Oded full_name: Hod, Oded last_name: Hod - first_name: Pavel full_name: Jelinek, Pavel last_name: Jelinek - first_name: Grzegorz full_name: Kamieniarz, Grzegorz last_name: Kamieniarz - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Karen full_name: Michaeli, Karen last_name: Michaeli - first_name: Vladimiro full_name: Mujica, Vladimiro last_name: Mujica - first_name: Ron full_name: Naaman, Ron last_name: Naaman - first_name: Yossi full_name: Paltiel, Yossi last_name: Paltiel - first_name: Sivan full_name: Refaely-Abramson, Sivan last_name: Refaely-Abramson - first_name: Oren full_name: Tal, Oren last_name: Tal - first_name: Jos full_name: Thijssen, Jos last_name: Thijssen - first_name: Michael full_name: Thoss, Michael last_name: Thoss - first_name: Jan M. full_name: Van Ruitenbeek, Jan M. last_name: Van Ruitenbeek - first_name: Latha full_name: Venkataraman, Latha last_name: Venkataraman - first_name: David H. full_name: Waldeck, David H. last_name: Waldeck - first_name: Binghai full_name: Yan, Binghai last_name: Yan - first_name: Leeor full_name: Kronik, Leeor last_name: Kronik citation: ama: 'Evers F, Aharony A, Bar-Gill N, et al. Theory of chirality induced spin selectivity: Progress and challenges. Advanced Materials. 2022;34(13). doi:10.1002/adma.202106629' apa: 'Evers, F., Aharony, A., Bar-Gill, N., Entin-Wohlman, O., Hedegård, P., Hod, O., … Kronik, L. (2022). Theory of chirality induced spin selectivity: Progress and challenges. Advanced Materials. Wiley. https://doi.org/10.1002/adma.202106629' chicago: 'Evers, Ferdinand, Amnon Aharony, Nir Bar-Gill, Ora Entin-Wohlman, Per Hedegård, Oded Hod, Pavel Jelinek, et al. “Theory of Chirality Induced Spin Selectivity: Progress and Challenges.” Advanced Materials. Wiley, 2022. https://doi.org/10.1002/adma.202106629.' ieee: 'F. Evers et al., “Theory of chirality induced spin selectivity: Progress and challenges,” Advanced Materials, vol. 34, no. 13. Wiley, 2022.' ista: 'Evers F, Aharony A, Bar-Gill N, Entin-Wohlman O, Hedegård P, Hod O, Jelinek P, Kamieniarz G, Lemeshko M, Michaeli K, Mujica V, Naaman R, Paltiel Y, Refaely-Abramson S, Tal O, Thijssen J, Thoss M, Van Ruitenbeek JM, Venkataraman L, Waldeck DH, Yan B, Kronik L. 2022. Theory of chirality induced spin selectivity: Progress and challenges. Advanced Materials. 34(13), 2106629.' mla: 'Evers, Ferdinand, et al. “Theory of Chirality Induced Spin Selectivity: Progress and Challenges.” Advanced Materials, vol. 34, no. 13, 2106629, Wiley, 2022, doi:10.1002/adma.202106629.' short: F. Evers, A. Aharony, N. Bar-Gill, O. Entin-Wohlman, P. Hedegård, O. Hod, P. Jelinek, G. Kamieniarz, M. Lemeshko, K. Michaeli, V. Mujica, R. Naaman, Y. Paltiel, S. Refaely-Abramson, O. Tal, J. Thijssen, M. Thoss, J.M. Van Ruitenbeek, L. Venkataraman, D.H. Waldeck, B. Yan, L. Kronik, Advanced Materials 34 (2022). date_created: 2022-02-20T23:01:33Z date_published: 2022-04-01T00:00:00Z date_updated: 2023-08-02T14:30:22Z day: '01' department: - _id: MiLe doi: 10.1002/adma.202106629 external_id: arxiv: - '2108.09998' isi: - '000753795900001' intvolume: ' 34' isi: 1 issue: '13' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/2108.09998 month: '04' oa: 1 oa_version: Preprint publication: Advanced Materials publication_identifier: eissn: - '15214095' issn: - '09359648' publication_status: published publisher: Wiley quality_controlled: '1' scopus_import: '1' status: public title: 'Theory of chirality induced spin selectivity: Progress and challenges' type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 34 year: '2022' ... --- _id: '11552' abstract: - lang: eng text: Rotational dynamics of D2 molecules inside helium nanodroplets is induced by a moderately intense femtosecond pump pulse and measured as a function of time by recording the yield of HeD+ ions, created through strong-field dissociative ionization with a delayed femtosecond probe pulse. The yield oscillates with a period of 185 fs, reflecting field-free rotational wave packet dynamics, and the oscillation persists for more than 500 periods. Within the experimental uncertainty, the rotational constant BHe of the in-droplet D2 molecule, determined by Fourier analysis, is the same as Bgas for an isolated D2 molecule. Our observations show that the D2 molecules inside helium nanodroplets essentially rotate as free D2 molecules. article_number: '243201' article_processing_charge: No author: - first_name: Junjie full_name: Qiang, Junjie last_name: Qiang - first_name: Lianrong full_name: Zhou, Lianrong last_name: Zhou - first_name: Peifen full_name: Lu, Peifen last_name: Lu - first_name: Kang full_name: Lin, Kang last_name: Lin - first_name: Yongzhe full_name: Ma, Yongzhe last_name: Ma - first_name: Shengzhe full_name: Pan, Shengzhe last_name: Pan - first_name: Chenxu full_name: Lu, Chenxu last_name: Lu - first_name: Wenyu full_name: Jiang, Wenyu last_name: Jiang - first_name: Fenghao full_name: Sun, Fenghao last_name: Sun - first_name: Wenbin full_name: Zhang, Wenbin last_name: Zhang - first_name: Hui full_name: Li, Hui last_name: Li - first_name: Xiaochun full_name: Gong, Xiaochun last_name: Gong - first_name: Ilya Sh full_name: Averbukh, Ilya Sh last_name: Averbukh - first_name: Yehiam full_name: Prior, Yehiam last_name: Prior - first_name: Constant A. full_name: Schouder, Constant A. last_name: Schouder - first_name: Henrik full_name: Stapelfeldt, Henrik last_name: Stapelfeldt - first_name: Igor full_name: Cherepanov, Igor id: 339C7E5A-F248-11E8-B48F-1D18A9856A87 last_name: Cherepanov - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Wolfgang full_name: Jäger, Wolfgang last_name: Jäger - first_name: Jian full_name: Wu, Jian last_name: Wu citation: ama: Qiang J, Zhou L, Lu P, et al. Femtosecond rotational dynamics of D2 molecules in superfluid helium nanodroplets. Physical Review Letters. 2022;128(24). doi:10.1103/PhysRevLett.128.243201 apa: Qiang, J., Zhou, L., Lu, P., Lin, K., Ma, Y., Pan, S., … Wu, J. (2022). Femtosecond rotational dynamics of D2 molecules in superfluid helium nanodroplets. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.128.243201 chicago: Qiang, Junjie, Lianrong Zhou, Peifen Lu, Kang Lin, Yongzhe Ma, Shengzhe Pan, Chenxu Lu, et al. “Femtosecond Rotational Dynamics of D2 Molecules in Superfluid Helium Nanodroplets.” Physical Review Letters. American Physical Society, 2022. https://doi.org/10.1103/PhysRevLett.128.243201. ieee: J. Qiang et al., “Femtosecond rotational dynamics of D2 molecules in superfluid helium nanodroplets,” Physical Review Letters, vol. 128, no. 24. American Physical Society, 2022. ista: Qiang J, Zhou L, Lu P, Lin K, Ma Y, Pan S, Lu C, Jiang W, Sun F, Zhang W, Li H, Gong X, Averbukh IS, Prior Y, Schouder CA, Stapelfeldt H, Cherepanov I, Lemeshko M, Jäger W, Wu J. 2022. Femtosecond rotational dynamics of D2 molecules in superfluid helium nanodroplets. Physical Review Letters. 128(24), 243201. mla: Qiang, Junjie, et al. “Femtosecond Rotational Dynamics of D2 Molecules in Superfluid Helium Nanodroplets.” Physical Review Letters, vol. 128, no. 24, 243201, American Physical Society, 2022, doi:10.1103/PhysRevLett.128.243201. short: J. Qiang, L. Zhou, P. Lu, K. Lin, Y. Ma, S. Pan, C. Lu, W. Jiang, F. Sun, W. Zhang, H. Li, X. Gong, I.S. Averbukh, Y. Prior, C.A. Schouder, H. Stapelfeldt, I. Cherepanov, M. Lemeshko, W. Jäger, J. Wu, Physical Review Letters 128 (2022). date_created: 2022-07-10T22:01:52Z date_published: 2022-06-16T00:00:00Z date_updated: 2023-08-03T11:54:14Z day: '16' department: - _id: MiLe doi: 10.1103/PhysRevLett.128.243201 ec_funded: 1 external_id: arxiv: - '2201.09281' isi: - '000820659700002' intvolume: ' 128' isi: 1 issue: '24' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2201.09281 month: '06' oa: 1 oa_version: Submitted Version project: - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' - _id: 2564DBCA-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '665385' name: International IST Doctoral Program publication: Physical Review Letters publication_identifier: eissn: - '10797114' issn: - '00319007' publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Femtosecond rotational dynamics of D2 molecules in superfluid helium nanodroplets type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 128 year: '2022' ... --- _id: '11590' abstract: - lang: eng text: 'We investigate the ground-state properties of weakly repulsive one-dimensional bosons in the presence of an attractive zero-range impurity potential. First, we derive mean-field solutions to the problem on a finite ring for the two asymptotic cases: (i) all bosons are bound to the impurity and (ii) all bosons are in a scattering state. Moreover, we derive the critical line that separates these regimes in the parameter space. In the thermodynamic limit, this critical line determines the maximum number of bosons that can be bound by the impurity potential, forming an artificial atom. Second, we validate the mean-field results using the flow equation approach and the multi-layer multi-configuration time-dependent Hartree method for atomic mixtures. While beyond-mean-field effects destroy long-range order in the Bose gas, the critical boson number is unaffected. Our findings are important for understanding such artificial atoms in low-density Bose gases with static and mobile impurities.' acknowledgement: This work has received funding from the DFG Project No. 413495248 [VO 2437/1-1] (FB, H-WH, AGV) and European Union's Horizon 2020 research and innovation programme under the Marie Skĺodowska-Curie Grant Agreement No. 754411 (AGV). ML acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). SIM acknowledges support from the NSF through a grant for ITAMP at Harvard University. article_number: '063036' article_processing_charge: No article_type: original author: - first_name: Fabian full_name: Brauneis, Fabian last_name: Brauneis - first_name: Timothy G. full_name: Backert, Timothy G. last_name: Backert - first_name: Simeon I. full_name: Mistakidis, Simeon I. last_name: Mistakidis - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Hans Werner full_name: Hammer, Hans Werner last_name: Hammer - first_name: Artem full_name: Volosniev, Artem id: 37D278BC-F248-11E8-B48F-1D18A9856A87 last_name: Volosniev orcid: 0000-0003-0393-5525 citation: ama: Brauneis F, Backert TG, Mistakidis SI, Lemeshko M, Hammer HW, Volosniev A. Artificial atoms from cold bosons in one dimension. New Journal of Physics. 2022;24(6). doi:10.1088/1367-2630/ac78d8 apa: Brauneis, F., Backert, T. G., Mistakidis, S. I., Lemeshko, M., Hammer, H. W., & Volosniev, A. (2022). Artificial atoms from cold bosons in one dimension. New Journal of Physics. IOP Publishing. https://doi.org/10.1088/1367-2630/ac78d8 chicago: Brauneis, Fabian, Timothy G. Backert, Simeon I. Mistakidis, Mikhail Lemeshko, Hans Werner Hammer, and Artem Volosniev. “Artificial Atoms from Cold Bosons in One Dimension.” New Journal of Physics. IOP Publishing, 2022. https://doi.org/10.1088/1367-2630/ac78d8. ieee: F. Brauneis, T. G. Backert, S. I. Mistakidis, M. Lemeshko, H. W. Hammer, and A. Volosniev, “Artificial atoms from cold bosons in one dimension,” New Journal of Physics, vol. 24, no. 6. IOP Publishing, 2022. ista: Brauneis F, Backert TG, Mistakidis SI, Lemeshko M, Hammer HW, Volosniev A. 2022. Artificial atoms from cold bosons in one dimension. New Journal of Physics. 24(6), 063036. mla: Brauneis, Fabian, et al. “Artificial Atoms from Cold Bosons in One Dimension.” New Journal of Physics, vol. 24, no. 6, 063036, IOP Publishing, 2022, doi:10.1088/1367-2630/ac78d8. short: F. Brauneis, T.G. Backert, S.I. Mistakidis, M. Lemeshko, H.W. Hammer, A. Volosniev, New Journal of Physics 24 (2022). date_created: 2022-07-17T22:01:55Z date_published: 2022-06-01T00:00:00Z date_updated: 2023-08-03T11:57:41Z day: '01' ddc: - '530' department: - _id: MiLe doi: 10.1088/1367-2630/ac78d8 ec_funded: 1 external_id: isi: - '000818530000001' file: - access_level: open_access checksum: dc67b60f2e50e9ef2bd820ca0d7333d2 content_type: application/pdf creator: dernst date_created: 2022-07-18T06:33:13Z date_updated: 2022-07-18T06:33:13Z file_id: '11594' file_name: 2022_NewJournalPhysics_Brauneis.pdf file_size: 3415721 relation: main_file success: 1 file_date_updated: 2022-07-18T06:33:13Z has_accepted_license: '1' intvolume: ' 24' isi: 1 issue: '6' language: - iso: eng month: '06' oa: 1 oa_version: Published Version project: - _id: 260C2330-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '754411' name: ISTplus - Postdoctoral Fellowships - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: New Journal of Physics publication_identifier: issn: - 1367-2630 publication_status: published publisher: IOP Publishing quality_controlled: '1' scopus_import: '1' status: public title: Artificial atoms from cold bosons in one dimension tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 24 year: '2022' ... --- _id: '11998' abstract: - lang: eng text: Recently it became possible to study highly excited rotational states of molecules in superfluid helium through nonadiabatic alignment experiments (Cherepanov et al 2021 Phys. Rev. A 104 L061303). This calls for theoretical approaches that go beyond explaining renormalized values of molecular spectroscopic constants, which suffices when only the lowest few rotational states are involved. As the first step in this direction, here we present a basic quantum mechanical model describing highly excited rotational states of molecules in superfluid helium nanodroplets. We show that a linear molecule immersed in a superfluid can be seen as an effective symmetric top, similar to the rotational structure of radicals, such as OH or NO, but with the angular momentum of the superfluid playing the role of the electronic angular momentum in free molecules. The simple theory sheds light onto what happens when the rotational angular momentum of the molecule increases beyond the lowest excited states accessible by infrared spectroscopy. In addition, the model allows to estimate the effective rotational and centrifugal distortion constants for a broad range of species and to explain the crossover between light and heavy molecules in superfluid 4He in terms of the many-body wavefunction structure. Some of the above mentioned insights can be acquired by analyzing a simple 2 × 2 matrix. acknowledgement: IC acknowledges the support by the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 665385. GB acknowledges support from the Austrian Science Fund (FWF), under Project No. M2461-N27 and from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy EXC2181/1-390900948 (the Heidelberg STRUCTURES Excellence Cluster). ML acknowledges support by the Austrian Science Fund (FWF), under Project No. P29902-N27, and by the European Research Council (ERC) starting Grant No. 801770 (ANGULON). HS acknowledges support from the Independent Research Fund Denmark (Project No. 8021-00232B) and from the Villum Fonden through a Villum Investigator Grant No. 25886. article_number: '075004' article_processing_charge: Yes article_type: original author: - first_name: Igor full_name: Cherepanov, Igor id: 339C7E5A-F248-11E8-B48F-1D18A9856A87 last_name: Cherepanov - first_name: Giacomo full_name: Bighin, Giacomo id: 4CA96FD4-F248-11E8-B48F-1D18A9856A87 last_name: Bighin orcid: 0000-0001-8823-9777 - first_name: Constant A. full_name: Schouder, Constant A. last_name: Schouder - first_name: Adam S. full_name: Chatterley, Adam S. last_name: Chatterley - first_name: Henrik full_name: Stapelfeldt, Henrik last_name: Stapelfeldt - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Cherepanov I, Bighin G, Schouder CA, Chatterley AS, Stapelfeldt H, Lemeshko M. A simple model for high rotational excitations of molecules in a superfluid. New Journal of Physics. 2022;24(7). doi:10.1088/1367-2630/ac8113 apa: Cherepanov, I., Bighin, G., Schouder, C. A., Chatterley, A. S., Stapelfeldt, H., & Lemeshko, M. (2022). A simple model for high rotational excitations of molecules in a superfluid. New Journal of Physics. IOP. https://doi.org/10.1088/1367-2630/ac8113 chicago: Cherepanov, Igor, Giacomo Bighin, Constant A. Schouder, Adam S. Chatterley, Henrik Stapelfeldt, and Mikhail Lemeshko. “A Simple Model for High Rotational Excitations of Molecules in a Superfluid.” New Journal of Physics. IOP, 2022. https://doi.org/10.1088/1367-2630/ac8113. ieee: I. Cherepanov, G. Bighin, C. A. Schouder, A. S. Chatterley, H. Stapelfeldt, and M. Lemeshko, “A simple model for high rotational excitations of molecules in a superfluid,” New Journal of Physics, vol. 24, no. 7. IOP, 2022. ista: Cherepanov I, Bighin G, Schouder CA, Chatterley AS, Stapelfeldt H, Lemeshko M. 2022. A simple model for high rotational excitations of molecules in a superfluid. New Journal of Physics. 24(7), 075004. mla: Cherepanov, Igor, et al. “A Simple Model for High Rotational Excitations of Molecules in a Superfluid.” New Journal of Physics, vol. 24, no. 7, 075004, IOP, 2022, doi:10.1088/1367-2630/ac8113. short: I. Cherepanov, G. Bighin, C.A. Schouder, A.S. Chatterley, H. Stapelfeldt, M. Lemeshko, New Journal of Physics 24 (2022). date_created: 2022-08-28T22:02:01Z date_published: 2022-08-11T00:00:00Z date_updated: 2023-08-03T13:19:06Z day: '11' ddc: - '530' department: - _id: MiLe doi: 10.1088/1367-2630/ac8113 ec_funded: 1 external_id: isi: - '000839216900001' file: - access_level: open_access checksum: 10116a08d3489befc13dba2cc44490f1 content_type: application/pdf creator: alisjak date_created: 2022-08-29T09:57:40Z date_updated: 2022-08-29T09:57:40Z file_id: '12005' file_name: 2022_NewJournalofPhysics_Cherepanov.pdf file_size: 1912882 relation: main_file success: 1 file_date_updated: 2022-08-29T09:57:40Z has_accepted_license: '1' intvolume: ' 24' isi: 1 issue: '7' language: - iso: eng month: '08' oa: 1 oa_version: Published Version project: - _id: 2564DBCA-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '665385' name: International IST Doctoral Program - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' - _id: 26986C82-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: M02641 name: A path-integral approach to composite impurities publication: New Journal of Physics publication_identifier: issn: - 1367-2630 publication_status: published publisher: IOP quality_controlled: '1' scopus_import: '1' status: public title: A simple model for high rotational excitations of molecules in a superfluid tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 24 year: '2022' ... --- _id: '12150' abstract: - lang: eng text: Methods inspired from machine learning have recently attracted great interest in the computational study of quantum many-particle systems. So far, however, it has proven challenging to deal with microscopic models in which the total number of particles is not conserved. To address this issue, we propose a variant of neural network states, which we term neural coherent states. Taking the Fröhlich impurity model as a case study, we show that neural coherent states can learn the ground state of nonadditive systems very well. In particular, we recover exact diagonalization in all regimes tested and observe substantial improvement over the standard coherent state estimates in the most challenging intermediate-coupling regime. Our approach is generic and does not assume specific details of the system, suggesting wide applications. acknowledgement: 'We acknowledge fruitful discussions with G. Bighin, G. Fabiani, A. Ghazaryan, C. Lampert, and A. Volosniev at various stages of this work. W.R. acknowledges support through a DOC Fellowship of the Austrian Academy of Sciences and has received funding from the EU Horizon 2020 programme under the Marie Skłodowska-Curie Grant Agreement No. 665385. M.L. and J.H.M. acknowledge support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON) and Synergy Grant No. 856538 (3D-MAGiC), respectively. This work is part of the Shell-NWO/FOMinitiative “Computational sciences for energy research” of Shell and Chemical Sciences, Earth and Life Sciences, Physical Sciences, FOM and STW. ' article_number: '155127' article_processing_charge: No article_type: original author: - first_name: Wojciech full_name: Rzadkowski, Wojciech id: 48C55298-F248-11E8-B48F-1D18A9856A87 last_name: Rzadkowski orcid: 0000-0002-1106-4419 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Johan H. full_name: Mentink, Johan H. last_name: Mentink citation: ama: Rzadkowski W, Lemeshko M, Mentink JH. Artificial neural network states for nonadditive systems. Physical Review B. 2022;106(15). doi:10.1103/physrevb.106.155127 apa: Rzadkowski, W., Lemeshko, M., & Mentink, J. H. (2022). Artificial neural network states for nonadditive systems. Physical Review B. American Physical Society. https://doi.org/10.1103/physrevb.106.155127 chicago: Rzadkowski, Wojciech, Mikhail Lemeshko, and Johan H. Mentink. “Artificial Neural Network States for Nonadditive Systems.” Physical Review B. American Physical Society, 2022. https://doi.org/10.1103/physrevb.106.155127. ieee: W. Rzadkowski, M. Lemeshko, and J. H. Mentink, “Artificial neural network states for nonadditive systems,” Physical Review B, vol. 106, no. 15. American Physical Society, 2022. ista: Rzadkowski W, Lemeshko M, Mentink JH. 2022. Artificial neural network states for nonadditive systems. Physical Review B. 106(15), 155127. mla: Rzadkowski, Wojciech, et al. “Artificial Neural Network States for Nonadditive Systems.” Physical Review B, vol. 106, no. 15, 155127, American Physical Society, 2022, doi:10.1103/physrevb.106.155127. short: W. Rzadkowski, M. Lemeshko, J.H. Mentink, Physical Review B 106 (2022). date_created: 2023-01-12T12:07:49Z date_published: 2022-10-15T00:00:00Z date_updated: 2023-08-04T09:01:48Z day: '15' department: - _id: MiLe doi: 10.1103/physrevb.106.155127 ec_funded: 1 external_id: arxiv: - '2105.15193' isi: - '000875189100005' intvolume: ' 106' isi: 1 issue: '15' language: - iso: eng main_file_link: - open_access: '1' url: ' https://doi.org/10.48550/arXiv.2105.15193' month: '10' oa: 1 oa_version: Preprint project: - _id: 05A235A0-7A3F-11EA-A408-12923DDC885E grant_number: '25681' name: Analytic and machine learning approaches to composite quantum impurities - _id: 2564DBCA-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '665385' name: International IST Doctoral Program - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: Physical Review B publication_identifier: eissn: - 2469-9969 issn: - 2469-9950 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Artificial neural network states for nonadditive systems type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 106 year: '2022' ... --- _id: '10585' abstract: - lang: eng text: Recently it was shown that anyons on the two-sphere naturally arise from a system of molecular impurities exchanging angular momentum with a many-particle bath (Phys. Rev. Lett. 126, 015301 (2021)). Here we further advance this approach and rigorously demonstrate that in the experimentally realized regime the lowest spectrum of two linear molecules immersed in superfluid helium corresponds to the spectrum of two anyons on the sphere. We develop the formalism within the framework of the recently experimentally observed angulon quasiparticle acknowledgement: D. Lundholm acknowledges financial support from the Göran Gustafsson Foundation (grant no. 1804). article_number: '106' article_processing_charge: Yes article_type: original author: - first_name: Morris full_name: Brooks, Morris id: B7ECF9FC-AA38-11E9-AC9A-0930E6697425 last_name: Brooks orcid: 0000-0002-6249-0928 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Douglas full_name: Lundholm, Douglas last_name: Lundholm - first_name: Enderalp full_name: Yakaboylu, Enderalp id: 38CB71F6-F248-11E8-B48F-1D18A9856A87 last_name: Yakaboylu orcid: 0000-0001-5973-0874 citation: ama: Brooks M, Lemeshko M, Lundholm D, Yakaboylu E. Emergence of anyons on the two-sphere in molecular impurities. Atoms. 2021;9(4). doi:10.3390/atoms9040106 apa: Brooks, M., Lemeshko, M., Lundholm, D., & Yakaboylu, E. (2021). Emergence of anyons on the two-sphere in molecular impurities. Atoms. MDPI. https://doi.org/10.3390/atoms9040106 chicago: Brooks, Morris, Mikhail Lemeshko, Douglas Lundholm, and Enderalp Yakaboylu. “Emergence of Anyons on the Two-Sphere in Molecular Impurities.” Atoms. MDPI, 2021. https://doi.org/10.3390/atoms9040106. ieee: M. Brooks, M. Lemeshko, D. Lundholm, and E. Yakaboylu, “Emergence of anyons on the two-sphere in molecular impurities,” Atoms, vol. 9, no. 4. MDPI, 2021. ista: Brooks M, Lemeshko M, Lundholm D, Yakaboylu E. 2021. Emergence of anyons on the two-sphere in molecular impurities. Atoms. 9(4), 106. mla: Brooks, Morris, et al. “Emergence of Anyons on the Two-Sphere in Molecular Impurities.” Atoms, vol. 9, no. 4, 106, MDPI, 2021, doi:10.3390/atoms9040106. short: M. Brooks, M. Lemeshko, D. Lundholm, E. Yakaboylu, Atoms 9 (2021). date_created: 2022-01-02T23:01:33Z date_published: 2021-12-02T00:00:00Z date_updated: 2023-06-15T14:51:49Z day: '02' ddc: - '530' department: - _id: MiLe - _id: RoSe doi: 10.3390/atoms9040106 external_id: arxiv: - '2108.06966' file: - access_level: open_access checksum: d0e44b95f36c9e06724f66832af0f8c3 content_type: application/pdf creator: alisjak date_created: 2022-01-03T10:15:05Z date_updated: 2022-01-03T10:15:05Z file_id: '10592' file_name: 2021_Atoms_Brooks.pdf file_size: 303070 relation: main_file success: 1 file_date_updated: 2022-01-03T10:15:05Z has_accepted_license: '1' intvolume: ' 9' issue: '4' keyword: - anyons - quasiparticles - Quantum Hall Effect - topological states of matter language: - iso: eng month: '12' oa: 1 oa_version: Published Version publication: Atoms publication_identifier: eissn: - 2218-2004 publication_status: published publisher: MDPI quality_controlled: '1' scopus_import: '1' status: public title: Emergence of anyons on the two-sphere in molecular impurities tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 9 year: '2021' ... --- _id: '9005' abstract: - lang: eng text: Studies on the experimental realization of two-dimensional anyons in terms of quasiparticles have been restricted, so far, to only anyons on the plane. It is known, however, that the geometry and topology of space can have significant effects on quantum statistics for particles moving on it. Here, we have undertaken the first step toward realizing the emerging fractional statistics for particles restricted to move on the sphere instead of on the plane. We show that such a model arises naturally in the context of quantum impurity problems. In particular, we demonstrate a setup in which the lowest-energy spectrum of two linear bosonic or fermionic molecules immersed in a quantum many-particle environment can coincide with the anyonic spectrum on the sphere. This paves the way toward the experimental realization of anyons on the sphere using molecular impurities. Furthermore, since a change in the alignment of the molecules corresponds to the exchange of the particles on the sphere, such a realization reveals a novel type of exclusion principle for molecular impurities, which could also be of use as a powerful technique to measure the statistics parameter. Finally, our approach opens up a simple numerical route to investigate the spectra of many anyons on the sphere. Accordingly, we present the spectrum of two anyons on the sphere in the presence of a Dirac monopole field. acknowledgement: "We are grateful to A. Ghazaryan for valuable discussions and also thank the anonymous referees for comments. D.L. acknowledges financial support from the G¨oran Gustafsson Foundation (grant no. 1804) and LMU Munich. M.L. gratefully acknowledges financial support\r\nby the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreements No 801770)." article_number: '015301' article_processing_charge: No article_type: original author: - first_name: Morris full_name: Brooks, Morris id: B7ECF9FC-AA38-11E9-AC9A-0930E6697425 last_name: Brooks orcid: 0000-0002-6249-0928 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: D. full_name: Lundholm, D. last_name: Lundholm - first_name: Enderalp full_name: Yakaboylu, Enderalp id: 38CB71F6-F248-11E8-B48F-1D18A9856A87 last_name: Yakaboylu orcid: 0000-0001-5973-0874 citation: ama: Brooks M, Lemeshko M, Lundholm D, Yakaboylu E. Molecular impurities as a realization of anyons on the two-sphere. Physical Review Letters. 2021;126(1). doi:10.1103/PhysRevLett.126.015301 apa: Brooks, M., Lemeshko, M., Lundholm, D., & Yakaboylu, E. (2021). Molecular impurities as a realization of anyons on the two-sphere. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.126.015301 chicago: Brooks, Morris, Mikhail Lemeshko, D. Lundholm, and Enderalp Yakaboylu. “Molecular Impurities as a Realization of Anyons on the Two-Sphere.” Physical Review Letters. American Physical Society, 2021. https://doi.org/10.1103/PhysRevLett.126.015301. ieee: M. Brooks, M. Lemeshko, D. Lundholm, and E. Yakaboylu, “Molecular impurities as a realization of anyons on the two-sphere,” Physical Review Letters, vol. 126, no. 1. American Physical Society, 2021. ista: Brooks M, Lemeshko M, Lundholm D, Yakaboylu E. 2021. Molecular impurities as a realization of anyons on the two-sphere. Physical Review Letters. 126(1), 015301. mla: Brooks, Morris, et al. “Molecular Impurities as a Realization of Anyons on the Two-Sphere.” Physical Review Letters, vol. 126, no. 1, 015301, American Physical Society, 2021, doi:10.1103/PhysRevLett.126.015301. short: M. Brooks, M. Lemeshko, D. Lundholm, E. Yakaboylu, Physical Review Letters 126 (2021). date_created: 2021-01-17T23:01:10Z date_published: 2021-01-08T00:00:00Z date_updated: 2023-08-07T13:32:10Z day: '08' department: - _id: MiLe - _id: RoSe doi: 10.1103/PhysRevLett.126.015301 ec_funded: 1 external_id: arxiv: - '2009.05948' isi: - '000606325000003' intvolume: ' 126' isi: 1 issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/2009.05948 month: '01' oa: 1 oa_version: Preprint project: - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: Physical Review Letters publication_identifier: eissn: - '10797114' issn: - '00319007' publication_status: published publisher: American Physical Society quality_controlled: '1' related_material: link: - description: News on IST Homepage relation: press_release url: https://ist.ac.at/en/news/dancing-molecules-and-two-dimensional-particles/ record: - id: '12390' relation: dissertation_contains status: public scopus_import: '1' status: public title: Molecular impurities as a realization of anyons on the two-sphere type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 126 year: '2021' ... --- _id: '9770' abstract: - lang: eng text: We study an effective one-dimensional quantum model that includes friction and spin-orbit coupling (SOC), and show that the model exhibits spin polarization when both terms are finite. Most important, strong spin polarization can be observed even for moderate SOC, provided that the friction is strong. Our findings might help to explain the pronounced effect of chirality on spin distribution and transport in chiral molecules. In particular, our model implies static magnetic properties of a chiral molecule, which lead to Shiba-like states when a molecule is placed on a superconductor, in accordance with recent experimental data. acknowledgement: "We thank Rafael Barfknecht for useful discussions. This work has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 754411 (A.G.\r\nand A.G.V.). M.L. acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). Y.P. and O.M. acknowledge funding from the Nidersachsen Ministry of Science and Culture, and from the\r\nAcademia Sinica Research Program. O.M. is thankful for support through the Harry de Jur Chair in Applied Science." article_number: '024430' article_processing_charge: No article_type: original author: - first_name: Artem full_name: Volosniev, Artem id: 37D278BC-F248-11E8-B48F-1D18A9856A87 last_name: Volosniev orcid: 0000-0003-0393-5525 - first_name: Hen full_name: Alpern, Hen last_name: Alpern - first_name: Yossi full_name: Paltiel, Yossi last_name: Paltiel - first_name: Oded full_name: Millo, Oded last_name: Millo - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Areg full_name: Ghazaryan, Areg id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87 last_name: Ghazaryan orcid: 0000-0001-9666-3543 citation: ama: Volosniev A, Alpern H, Paltiel Y, Millo O, Lemeshko M, Ghazaryan A. Interplay between friction and spin-orbit coupling as a source of spin polarization. Physical Review B. 2021;104(2). doi:10.1103/physrevb.104.024430 apa: Volosniev, A., Alpern, H., Paltiel, Y., Millo, O., Lemeshko, M., & Ghazaryan, A. (2021). Interplay between friction and spin-orbit coupling as a source of spin polarization. Physical Review B. American Physical Society. https://doi.org/10.1103/physrevb.104.024430 chicago: Volosniev, Artem, Hen Alpern, Yossi Paltiel, Oded Millo, Mikhail Lemeshko, and Areg Ghazaryan. “Interplay between Friction and Spin-Orbit Coupling as a Source of Spin Polarization.” Physical Review B. American Physical Society, 2021. https://doi.org/10.1103/physrevb.104.024430. ieee: A. Volosniev, H. Alpern, Y. Paltiel, O. Millo, M. Lemeshko, and A. Ghazaryan, “Interplay between friction and spin-orbit coupling as a source of spin polarization,” Physical Review B, vol. 104, no. 2. American Physical Society, 2021. ista: Volosniev A, Alpern H, Paltiel Y, Millo O, Lemeshko M, Ghazaryan A. 2021. Interplay between friction and spin-orbit coupling as a source of spin polarization. Physical Review B. 104(2), 024430. mla: Volosniev, Artem, et al. “Interplay between Friction and Spin-Orbit Coupling as a Source of Spin Polarization.” Physical Review B, vol. 104, no. 2, 024430, American Physical Society, 2021, doi:10.1103/physrevb.104.024430. short: A. Volosniev, H. Alpern, Y. Paltiel, O. Millo, M. Lemeshko, A. Ghazaryan, Physical Review B 104 (2021). date_created: 2021-08-04T15:05:32Z date_published: 2021-07-01T00:00:00Z date_updated: 2023-08-10T14:27:07Z day: '01' department: - _id: MiLe doi: 10.1103/physrevb.104.024430 ec_funded: 1 external_id: arxiv: - '2101.05173' isi: - '000678780800003' intvolume: ' 104' isi: 1 issue: '2' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/2101.05173 month: '07' oa: 1 oa_version: Preprint project: - _id: 260C2330-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '754411' name: ISTplus - Postdoctoral Fellowships - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: Physical Review B publication_identifier: eissn: - 2469-9969 issn: - 2469-9950 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Interplay between friction and spin-orbit coupling as a source of spin polarization type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 104 year: '2021' ... --- _id: '9769' abstract: - lang: eng text: A few years ago, flow equations were introduced as a technique for calculating the ground-state energies of cold Bose gases with and without impurities. In this paper, we extend this approach to compute observables other than the energy. As an example, we calculate the densities, and phase fluctuations of one-dimensional Bose gases with one and two impurities. For a single mobile impurity, we use flow equations to validate the mean-field results obtained upon the Lee-Low-Pines transformation. We show that the mean-field approximation is accurate for all values of the boson-impurity interaction strength as long as the phase coherence length is much larger than the healing length of the condensate. For two static impurities, we calculate impurity-impurity interactions induced by the Bose gas. We find that leading order perturbation theory fails when boson-impurity interactions are stronger than boson-boson interactions. The mean-field approximation reproduces the flow equation results for all values of the boson-impurity interaction strength as long as boson-boson interactions are weak. acknowledgement: We thank Matthias Heinz and Volker Karle for helpful comments on the manuscript; Zoran Ristivojevic for useful correspondence regarding mean-field calculations of induced impurity-impurity interactions; Fabian Grusdt for sharing with us the data for the densities presented in Ref. [14]. This work has received funding from the DFG Project No. 413495248 [VO 2437/1-1] (F. B., H.-W. H., A. G. V.) and European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 754411 (A. G. V.). M. L. acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). H.-W.H. thanks the ECT* for hospitality during the workshop “Universal physics in Many-Body Quantum Systems – From Atoms to Quarks". This infrastructure is part of a project that has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 824093. H.-W.H. was supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Project-ID 279384907 - SFB 1245. article_number: '008' article_processing_charge: Yes article_type: original author: - first_name: Fabian full_name: Brauneis, Fabian last_name: Brauneis - first_name: Hans-Werner full_name: Hammer, Hans-Werner last_name: Hammer - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Artem full_name: Volosniev, Artem id: 37D278BC-F248-11E8-B48F-1D18A9856A87 last_name: Volosniev orcid: 0000-0003-0393-5525 citation: ama: 'Brauneis F, Hammer H-W, Lemeshko M, Volosniev A. Impurities in a one-dimensional Bose gas: The flow equation approach. SciPost Physics. 2021;11(1). doi:10.21468/scipostphys.11.1.008' apa: 'Brauneis, F., Hammer, H.-W., Lemeshko, M., & Volosniev, A. (2021). Impurities in a one-dimensional Bose gas: The flow equation approach. SciPost Physics. SciPost. https://doi.org/10.21468/scipostphys.11.1.008' chicago: 'Brauneis, Fabian, Hans-Werner Hammer, Mikhail Lemeshko, and Artem Volosniev. “Impurities in a One-Dimensional Bose Gas: The Flow Equation Approach.” SciPost Physics. SciPost, 2021. https://doi.org/10.21468/scipostphys.11.1.008.' ieee: 'F. Brauneis, H.-W. Hammer, M. Lemeshko, and A. Volosniev, “Impurities in a one-dimensional Bose gas: The flow equation approach,” SciPost Physics, vol. 11, no. 1. SciPost, 2021.' ista: 'Brauneis F, Hammer H-W, Lemeshko M, Volosniev A. 2021. Impurities in a one-dimensional Bose gas: The flow equation approach. SciPost Physics. 11(1), 008.' mla: 'Brauneis, Fabian, et al. “Impurities in a One-Dimensional Bose Gas: The Flow Equation Approach.” SciPost Physics, vol. 11, no. 1, 008, SciPost, 2021, doi:10.21468/scipostphys.11.1.008.' short: F. Brauneis, H.-W. Hammer, M. Lemeshko, A. Volosniev, SciPost Physics 11 (2021). date_created: 2021-08-04T15:00:55Z date_published: 2021-07-13T00:00:00Z date_updated: 2023-08-11T10:25:44Z day: '13' ddc: - '530' department: - _id: MiLe doi: 10.21468/scipostphys.11.1.008 ec_funded: 1 external_id: arxiv: - '2101.10958' isi: - '000680039500013' file: - access_level: open_access checksum: eaa847346b1a023d97bbb291779610ed content_type: application/pdf creator: asandaue date_created: 2021-08-10T11:44:59Z date_updated: 2021-08-10T11:44:59Z file_id: '9875' file_name: 2021_SciPostPhysics_Brauneis.pdf file_size: 1085300 relation: main_file success: 1 file_date_updated: 2021-08-10T11:44:59Z has_accepted_license: '1' intvolume: ' 11' isi: 1 issue: '1' language: - iso: eng month: '07' oa: 1 oa_version: Published Version project: - _id: 260C2330-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '754411' name: ISTplus - Postdoctoral Fellowships - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: SciPost Physics publication_identifier: eissn: - 2542-4653 publication_status: published publisher: SciPost quality_controlled: '1' scopus_import: '1' status: public title: 'Impurities in a one-dimensional Bose gas: The flow equation approach' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 11 year: '2021' ... --- _id: '10631' abstract: - lang: eng text: We combine experimental and theoretical approaches to explore excited rotational states of molecules embedded in helium nanodroplets using CS2 and I2 as examples. Laser-induced nonadiabatic molecular alignment is employed to measure spectral lines for rotational states extending beyond those initially populated at the 0.37 K droplet temperature. We construct a simple quantum-mechanical model, based on a linear rotor coupled to a single-mode bosonic bath, to determine the rotational energy structure in its entirety. The calculated and measured spectral lines are in good agreement. We show that the effect of the surrounding superfluid on molecular rotation can be rationalized by a single quantity, the angular momentum, transferred from the molecule to the droplet. acknowledgement: I.C. acknowledges the support by the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie Grant Agreement No. 665385. G.B. acknowledges support from the Austrian Science Fund (FWF), under project No. M2461-N27. M.L. acknowledges support by the Austrian Science Fund (FWF), under project No. P29902-N27, and by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). H.S acknowledges support from the European Research Council-AdG (Project No. 320459, DropletControl) and from The Villum Foundation through a Villum Investigator grant no. 25886. article_number: L061303 article_processing_charge: No article_type: original author: - first_name: Igor full_name: Cherepanov, Igor id: 339C7E5A-F248-11E8-B48F-1D18A9856A87 last_name: Cherepanov - first_name: Giacomo full_name: Bighin, Giacomo id: 4CA96FD4-F248-11E8-B48F-1D18A9856A87 last_name: Bighin orcid: 0000-0001-8823-9777 - first_name: Constant A. full_name: Schouder, Constant A. last_name: Schouder - first_name: Adam S. full_name: Chatterley, Adam S. last_name: Chatterley - first_name: Simon H. full_name: Albrechtsen, Simon H. last_name: Albrechtsen - first_name: Alberto Viñas full_name: Muñoz, Alberto Viñas last_name: Muñoz - first_name: Lars full_name: Christiansen, Lars last_name: Christiansen - first_name: Henrik full_name: Stapelfeldt, Henrik last_name: Stapelfeldt - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Cherepanov I, Bighin G, Schouder CA, et al. Excited rotational states of molecules in a superfluid. Physical Review A. 2021;104(6). doi:10.1103/PhysRevA.104.L061303 apa: Cherepanov, I., Bighin, G., Schouder, C. A., Chatterley, A. S., Albrechtsen, S. H., Muñoz, A. V., … Lemeshko, M. (2021). Excited rotational states of molecules in a superfluid. Physical Review A. American Physical Society. https://doi.org/10.1103/PhysRevA.104.L061303 chicago: Cherepanov, Igor, Giacomo Bighin, Constant A. Schouder, Adam S. Chatterley, Simon H. Albrechtsen, Alberto Viñas Muñoz, Lars Christiansen, Henrik Stapelfeldt, and Mikhail Lemeshko. “Excited Rotational States of Molecules in a Superfluid.” Physical Review A. American Physical Society, 2021. https://doi.org/10.1103/PhysRevA.104.L061303. ieee: I. Cherepanov et al., “Excited rotational states of molecules in a superfluid,” Physical Review A, vol. 104, no. 6. American Physical Society, 2021. ista: Cherepanov I, Bighin G, Schouder CA, Chatterley AS, Albrechtsen SH, Muñoz AV, Christiansen L, Stapelfeldt H, Lemeshko M. 2021. Excited rotational states of molecules in a superfluid. Physical Review A. 104(6), L061303. mla: Cherepanov, Igor, et al. “Excited Rotational States of Molecules in a Superfluid.” Physical Review A, vol. 104, no. 6, L061303, American Physical Society, 2021, doi:10.1103/PhysRevA.104.L061303. short: I. Cherepanov, G. Bighin, C.A. Schouder, A.S. Chatterley, S.H. Albrechtsen, A.V. Muñoz, L. Christiansen, H. Stapelfeldt, M. Lemeshko, Physical Review A 104 (2021). date_created: 2022-01-16T23:01:29Z date_published: 2021-12-30T00:00:00Z date_updated: 2023-08-17T06:52:17Z day: '30' department: - _id: MiLe doi: 10.1103/PhysRevA.104.L061303 ec_funded: 1 external_id: arxiv: - '2107.00468' isi: - '000739618300001' intvolume: ' 104' isi: 1 issue: '6' language: - iso: eng main_file_link: - open_access: '1' url: http://128.84.4.18/abs/2107.00468 month: '12' oa: 1 oa_version: Preprint project: - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' - _id: 2564DBCA-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '665385' name: International IST Doctoral Program - _id: 26986C82-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: M02641 name: A path-integral approach to composite impurities publication: Physical Review A publication_identifier: eissn: - 2469-9934 issn: - 2469-9926 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Excited rotational states of molecules in a superfluid type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 104 year: '2021' ... --- _id: '10762' abstract: - lang: eng text: Methods inspired from machine learning have recently attracted great interest in the computational study of quantum many-particle systems. So far, however, it has proven challenging to deal with microscopic models in which the total number of particles is not conserved. To address this issue, we propose a new variant of neural network states, which we term neural coherent states. Taking the Fröhlich impurity model as a case study, we show that neural coherent states can learn the ground state of non-additive systems very well. In particular, we observe substantial improvement over the standard coherent state estimates in the most challenging intermediate coupling regime. Our approach is generic and does not assume specific details of the system, suggesting wide applications. acknowledgement: "We acknowledge fruitful discussions with Giacomo Bighin, Giammarco Fabiani, Areg Ghazaryan, Christoph\r\nLampert, and Artem Volosniev at various stages of this work. W.R. is a recipient of a DOC Fellowship of the\r\nAustrian Academy of Sciences and has received funding from the EU Horizon 2020 programme under the Marie\r\nSkłodowska-Curie Grant Agreement No. 665385. M. L. acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). This work is part of the Shell-NWO/FOM-initiative “Computational sciences for energy research” of Shell and Chemical Sciences, Earth and Life Sciences, Physical Sciences, FOM and STW." article_processing_charge: No author: - first_name: Wojciech full_name: Rzadkowski, Wojciech id: 48C55298-F248-11E8-B48F-1D18A9856A87 last_name: Rzadkowski orcid: 0000-0002-1106-4419 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Johan H. full_name: Mentink, Johan H. last_name: Mentink citation: ama: Rzadkowski W, Lemeshko M, Mentink JH. Artificial neural network states for non-additive systems. arXiv. doi:10.48550/arXiv.2105.15193 apa: Rzadkowski, W., Lemeshko, M., & Mentink, J. H. (n.d.). Artificial neural network states for non-additive systems. arXiv. https://doi.org/10.48550/arXiv.2105.15193 chicago: Rzadkowski, Wojciech, Mikhail Lemeshko, and Johan H. Mentink. “Artificial Neural Network States for Non-Additive Systems.” ArXiv, n.d. https://doi.org/10.48550/arXiv.2105.15193. ieee: W. Rzadkowski, M. Lemeshko, and J. H. Mentink, “Artificial neural network states for non-additive systems,” arXiv. . ista: Rzadkowski W, Lemeshko M, Mentink JH. Artificial neural network states for non-additive systems. arXiv, 10.48550/arXiv.2105.15193. mla: Rzadkowski, Wojciech, et al. “Artificial Neural Network States for Non-Additive Systems.” ArXiv, doi:10.48550/arXiv.2105.15193. short: W. Rzadkowski, M. Lemeshko, J.H. Mentink, ArXiv (n.d.). date_created: 2022-02-17T11:18:57Z date_published: 2021-05-31T00:00:00Z date_updated: 2023-09-07T13:44:16Z day: '31' department: - _id: MiLe doi: 10.48550/arXiv.2105.15193 ec_funded: 1 external_id: arxiv: - '2105.15193' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/2105.15193 month: '05' oa: 1 oa_version: Preprint page: '2105.15193' project: - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' - _id: 2564DBCA-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '665385' name: International IST Doctoral Program publication: arXiv publication_status: submitted related_material: record: - id: '10759' relation: dissertation_contains status: public status: public title: Artificial neural network states for non-additive systems type: preprint user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2021' ... --- _id: '10134' abstract: - lang: eng text: We investigate the effect of coupling between translational and internal degrees of freedom of composite quantum particles on their localization in a random potential. We show that entanglement between the two degrees of freedom weakens localization due to the upper bound imposed on the inverse participation ratio by purity of a quantum state. We perform numerical calculations for a two-particle system bound by a harmonic force in a 1D disordered lattice and a rigid rotor in a 2D disordered lattice. We illustrate that the coupling has a dramatic effect on localization properties, even with a small number of internal states participating in quantum dynamics. acknowledgement: "We acknowledge helpful discussions with W. G. Unruh and A. Rodriguez. F. S. is supported by European Union’s\r\nHorizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant No. 754411. M. L. acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). W. H. Z. is\r\nsupported by Department of Energy under the Los\r\nAlamos National Laboratory LDRD Program as well as by the U.S. Department of Energy, Office of Science, Basic\r\nEnergy Sciences, Materials Sciences and Engineering Division, Condensed Matter Theory Program. R. V. K. is supported by NSERC of Canada.\r\n" article_number: '160602' article_processing_charge: No article_type: original author: - first_name: Fumika full_name: Suzuki, Fumika id: 650C99FC-1079-11EA-A3C0-73AE3DDC885E last_name: Suzuki orcid: 0000-0003-4982-5970 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Wojciech H. full_name: Zurek, Wojciech H. last_name: Zurek - first_name: Roman V. full_name: Krems, Roman V. last_name: Krems citation: ama: Suzuki F, Lemeshko M, Zurek WH, Krems RV. Anderson localization of composite particles. Physical Review Letters. 2021;127(16). doi:10.1103/physrevlett.127.160602 apa: Suzuki, F., Lemeshko, M., Zurek, W. H., & Krems, R. V. (2021). Anderson localization of composite particles. Physical Review Letters. American Physical Society . https://doi.org/10.1103/physrevlett.127.160602 chicago: Suzuki, Fumika, Mikhail Lemeshko, Wojciech H. Zurek, and Roman V. Krems. “Anderson Localization of Composite Particles.” Physical Review Letters. American Physical Society , 2021. https://doi.org/10.1103/physrevlett.127.160602. ieee: F. Suzuki, M. Lemeshko, W. H. Zurek, and R. V. Krems, “Anderson localization of composite particles,” Physical Review Letters, vol. 127, no. 16. American Physical Society , 2021. ista: Suzuki F, Lemeshko M, Zurek WH, Krems RV. 2021. Anderson localization of composite particles. Physical Review Letters. 127(16), 160602. mla: Suzuki, Fumika, et al. “Anderson Localization of Composite Particles.” Physical Review Letters, vol. 127, no. 16, 160602, American Physical Society , 2021, doi:10.1103/physrevlett.127.160602. short: F. Suzuki, M. Lemeshko, W.H. Zurek, R.V. Krems, Physical Review Letters 127 (2021). date_created: 2021-10-13T09:21:33Z date_published: 2021-10-12T00:00:00Z date_updated: 2024-02-29T12:34:10Z day: '12' department: - _id: MiLe doi: 10.1103/physrevlett.127.160602 ec_funded: 1 external_id: arxiv: - '2011.06279' isi: - '000707495700001' intvolume: ' 127' isi: 1 issue: '16' keyword: - General Physics and Astronomy language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/2011.06279 month: '10' oa: 1 oa_version: Preprint project: - _id: 260C2330-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '754411' name: ISTplus - Postdoctoral Fellowships - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: Physical Review Letters publication_identifier: eissn: - 1079-7114 issn: - 0031-9007 publication_status: published publisher: 'American Physical Society ' quality_controlled: '1' scopus_import: '1' status: public title: Anderson localization of composite particles type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 127 year: '2021' ... --- _id: '7933' abstract: - lang: eng text: We study a mobile quantum impurity, possessing internal rotational degrees of freedom, confined to a ring in the presence of a many-particle bosonic bath. By considering the recently introduced rotating polaron problem, we define the Hamiltonian and examine the energy spectrum. The weak-coupling regime is studied by means of a variational ansatz in the truncated Fock space. The corresponding spectrum indicates that there emerges a coupling between the internal and orbital angular momenta of the impurity as a consequence of the phonon exchange. We interpret the coupling as a phonon-mediated spin-orbit coupling and quantify it by using a correlation function between the internal and the orbital angular momentum operators. The strong-coupling regime is investigated within the Pekar approach, and it is shown that the correlation function of the ground state shows a kink at a critical coupling, that is explained by a sharp transition from the noninteracting state to the states that exhibit strong interaction with the surroundings. The results might find applications in such fields as spintronics or topological insulators where spin-orbit coupling is of crucial importance. article_number: '184104 ' article_processing_charge: No article_type: original author: - first_name: Mikhail full_name: Maslov, Mikhail id: 2E65BB0E-F248-11E8-B48F-1D18A9856A87 last_name: Maslov orcid: 0000-0003-4074-2570 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Enderalp full_name: Yakaboylu, Enderalp id: 38CB71F6-F248-11E8-B48F-1D18A9856A87 last_name: Yakaboylu orcid: 0000-0001-5973-0874 citation: ama: Maslov M, Lemeshko M, Yakaboylu E. Synthetic spin-orbit coupling mediated by a bosonic environment. Physical Review B. 2020;101(18). doi:10.1103/PhysRevB.101.184104 apa: Maslov, M., Lemeshko, M., & Yakaboylu, E. (2020). Synthetic spin-orbit coupling mediated by a bosonic environment. Physical Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.101.184104 chicago: Maslov, Mikhail, Mikhail Lemeshko, and Enderalp Yakaboylu. “Synthetic Spin-Orbit Coupling Mediated by a Bosonic Environment.” Physical Review B. American Physical Society, 2020. https://doi.org/10.1103/PhysRevB.101.184104. ieee: M. Maslov, M. Lemeshko, and E. Yakaboylu, “Synthetic spin-orbit coupling mediated by a bosonic environment,” Physical Review B, vol. 101, no. 18. American Physical Society, 2020. ista: Maslov M, Lemeshko M, Yakaboylu E. 2020. Synthetic spin-orbit coupling mediated by a bosonic environment. Physical Review B. 101(18), 184104. mla: Maslov, Mikhail, et al. “Synthetic Spin-Orbit Coupling Mediated by a Bosonic Environment.” Physical Review B, vol. 101, no. 18, 184104, American Physical Society, 2020, doi:10.1103/PhysRevB.101.184104. short: M. Maslov, M. Lemeshko, E. Yakaboylu, Physical Review B 101 (2020). date_created: 2020-06-07T22:00:52Z date_published: 2020-05-01T00:00:00Z date_updated: 2023-08-21T07:05:15Z day: '01' department: - _id: MiLe doi: 10.1103/PhysRevB.101.184104 ec_funded: 1 external_id: arxiv: - '1912.03092' isi: - '000530754700003' intvolume: ' 101' isi: 1 issue: '18' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1912.03092 month: '05' oa: 1 oa_version: Preprint project: - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: Physical Review B publication_identifier: eissn: - '24699969' issn: - '24699950' publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Synthetic spin-orbit coupling mediated by a bosonic environment type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 101 year: '2020' ... --- _id: '8170' abstract: - lang: eng text: "Alignment of OCS, CS2, and I2 molecules embedded in helium nanodroplets is measured as a function\r\nof time following rotational excitation by a nonresonant, comparatively weak ps laser pulse. The distinct\r\npeaks in the power spectra, obtained by Fourier analysis, are used to determine the rotational, B, and\r\ncentrifugal distortion, D, constants. For OCS, B and D match the values known from IR spectroscopy. For\r\nCS2 and I2, they are the first experimental results reported. The alignment dynamics calculated from the\r\ngas-phase rotational Schrödinger equation, using the experimental in-droplet B and D values, agree in\r\ndetail with the measurement for all three molecules. The rotational spectroscopy technique for molecules in\r\nhelium droplets introduced here should apply to a range of molecules and complexes." acknowledgement: "H. S. acknowledges support from the European Research Council-AdG (Project No. 320459, DropletControl)\r\nand from The Villum Foundation through a Villum Investigator Grant No. 25886. M. L. acknowledges support\r\nby the Austrian Science Fund (FWF), under Project No. P29902-N27, and by the European Research Council\r\n(ERC) Starting Grant No. 801770 (ANGULON). G. B. acknowledges support from the Austrian Science Fund\r\n(FWF), under Project No. M2641-N27. I. C. acknowledges support by the European Union’s Horizon 2020 research and\r\ninnovation programme under the Marie Skłodowska-Curie Grant Agreement No. 665385. Computational resources for\r\nthe PIMC simulations were provided by the division for scientific computing at the Johannes Kepler University." article_number: '013001' article_processing_charge: No article_type: original author: - first_name: Adam S. full_name: Chatterley, Adam S. last_name: Chatterley - first_name: Lars full_name: Christiansen, Lars last_name: Christiansen - first_name: Constant A. full_name: Schouder, Constant A. last_name: Schouder - first_name: Anders V. full_name: Jørgensen, Anders V. last_name: Jørgensen - first_name: Benjamin full_name: Shepperson, Benjamin last_name: Shepperson - first_name: Igor full_name: Cherepanov, Igor id: 339C7E5A-F248-11E8-B48F-1D18A9856A87 last_name: Cherepanov - first_name: Giacomo full_name: Bighin, Giacomo id: 4CA96FD4-F248-11E8-B48F-1D18A9856A87 last_name: Bighin orcid: 0000-0001-8823-9777 - first_name: Robert E. full_name: Zillich, Robert E. last_name: Zillich - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Henrik full_name: Stapelfeldt, Henrik last_name: Stapelfeldt citation: ama: 'Chatterley AS, Christiansen L, Schouder CA, et al. Rotational coherence spectroscopy of molecules in Helium nanodroplets: Reconciling the time and the frequency domains. Physical Review Letters. 2020;125(1). doi:10.1103/PhysRevLett.125.013001' apa: 'Chatterley, A. S., Christiansen, L., Schouder, C. A., Jørgensen, A. V., Shepperson, B., Cherepanov, I., … Stapelfeldt, H. (2020). Rotational coherence spectroscopy of molecules in Helium nanodroplets: Reconciling the time and the frequency domains. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.125.013001' chicago: 'Chatterley, Adam S., Lars Christiansen, Constant A. Schouder, Anders V. Jørgensen, Benjamin Shepperson, Igor Cherepanov, Giacomo Bighin, Robert E. Zillich, Mikhail Lemeshko, and Henrik Stapelfeldt. “Rotational Coherence Spectroscopy of Molecules in Helium Nanodroplets: Reconciling the Time and the Frequency Domains.” Physical Review Letters. American Physical Society, 2020. https://doi.org/10.1103/PhysRevLett.125.013001.' ieee: 'A. S. Chatterley et al., “Rotational coherence spectroscopy of molecules in Helium nanodroplets: Reconciling the time and the frequency domains,” Physical Review Letters, vol. 125, no. 1. American Physical Society, 2020.' ista: 'Chatterley AS, Christiansen L, Schouder CA, Jørgensen AV, Shepperson B, Cherepanov I, Bighin G, Zillich RE, Lemeshko M, Stapelfeldt H. 2020. Rotational coherence spectroscopy of molecules in Helium nanodroplets: Reconciling the time and the frequency domains. Physical Review Letters. 125(1), 013001.' mla: 'Chatterley, Adam S., et al. “Rotational Coherence Spectroscopy of Molecules in Helium Nanodroplets: Reconciling the Time and the Frequency Domains.” Physical Review Letters, vol. 125, no. 1, 013001, American Physical Society, 2020, doi:10.1103/PhysRevLett.125.013001.' short: A.S. Chatterley, L. Christiansen, C.A. Schouder, A.V. Jørgensen, B. Shepperson, I. Cherepanov, G. Bighin, R.E. Zillich, M. Lemeshko, H. Stapelfeldt, Physical Review Letters 125 (2020). date_created: 2020-07-26T22:01:02Z date_published: 2020-07-03T00:00:00Z date_updated: 2023-08-22T08:22:43Z day: '03' department: - _id: MiLe doi: 10.1103/PhysRevLett.125.013001 ec_funded: 1 external_id: arxiv: - '2006.02694' isi: - '000544526900006' intvolume: ' 125' isi: 1 issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/2006.02694 month: '07' oa: 1 oa_version: Preprint project: - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' - _id: 26986C82-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: M02641 name: A path-integral approach to composite impurities - _id: 2564DBCA-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '665385' name: International IST Doctoral Program publication: Physical Review Letters publication_identifier: eissn: - '10797114' issn: - '00319007' publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: 'Rotational coherence spectroscopy of molecules in Helium nanodroplets: Reconciling the time and the frequency domains' type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 125 year: '2020' ... --- _id: '8652' abstract: - lang: eng text: Nature creates electrons with two values of the spin projection quantum number. In certain applications, it is important to filter electrons with one spin projection from the rest. Such filtering is not trivial, since spin-dependent interactions are often weak, and cannot lead to any substantial effect. Here we propose an efficient spin filter based upon scattering from a two-dimensional crystal, which is made of aligned point magnets. The polarization of the outgoing electron flux is controlled by the crystal, and reaches maximum at specific values of the parameters. In our scheme, polarization increase is accompanied by higher reflectivity of the crystal. High transmission is feasible in scattering from a quantum cavity made of two crystals. Our findings can be used for studies of low-energy spin-dependent scattering from two-dimensional ordered structures made of magnetic atoms or aligned chiral molecules. acknowledgement: "This work has received funding from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant Agreement No. 754411 (A.G.V. and A.G.). M.L. acknowledges support by the Austrian Science Fund (FWF), under project No. P29902-N27, and by the European Research Council (ERC) Starting\r\nGrant No. 801770 (ANGULON)." article_number: '178' article_processing_charge: Yes article_type: original author: - first_name: Areg full_name: Ghazaryan, Areg id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87 last_name: Ghazaryan orcid: 0000-0001-9666-3543 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Artem full_name: Volosniev, Artem id: 37D278BC-F248-11E8-B48F-1D18A9856A87 last_name: Volosniev orcid: 0000-0003-0393-5525 citation: ama: Ghazaryan A, Lemeshko M, Volosniev A. Filtering spins by scattering from a lattice of point magnets. Communications Physics. 2020;3. doi:10.1038/s42005-020-00445-8 apa: Ghazaryan, A., Lemeshko, M., & Volosniev, A. (2020). Filtering spins by scattering from a lattice of point magnets. Communications Physics. Springer Nature. https://doi.org/10.1038/s42005-020-00445-8 chicago: Ghazaryan, Areg, Mikhail Lemeshko, and Artem Volosniev. “Filtering Spins by Scattering from a Lattice of Point Magnets.” Communications Physics. Springer Nature, 2020. https://doi.org/10.1038/s42005-020-00445-8. ieee: A. Ghazaryan, M. Lemeshko, and A. Volosniev, “Filtering spins by scattering from a lattice of point magnets,” Communications Physics, vol. 3. Springer Nature, 2020. ista: Ghazaryan A, Lemeshko M, Volosniev A. 2020. Filtering spins by scattering from a lattice of point magnets. Communications Physics. 3, 178. mla: Ghazaryan, Areg, et al. “Filtering Spins by Scattering from a Lattice of Point Magnets.” Communications Physics, vol. 3, 178, Springer Nature, 2020, doi:10.1038/s42005-020-00445-8. short: A. Ghazaryan, M. Lemeshko, A. Volosniev, Communications Physics 3 (2020). date_created: 2020-10-13T09:48:59Z date_published: 2020-10-09T00:00:00Z date_updated: 2023-08-22T09:58:46Z day: '09' ddc: - '530' department: - _id: MiLe doi: 10.1038/s42005-020-00445-8 ec_funded: 1 external_id: isi: - '000581681000001' file: - access_level: open_access checksum: 60cd35b99f0780acffc7b6060e49ec8b content_type: application/pdf creator: dernst date_created: 2020-10-14T15:16:28Z date_updated: 2020-10-14T15:16:28Z file_id: '8662' file_name: 2020_CommPhysics_Ghazaryan.pdf file_size: 1462934 relation: main_file success: 1 file_date_updated: 2020-10-14T15:16:28Z has_accepted_license: '1' intvolume: ' 3' isi: 1 language: - iso: eng month: '10' oa: 1 oa_version: Published Version project: - _id: 260C2330-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '754411' name: ISTplus - Postdoctoral Fellowships - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: Communications Physics publication_identifier: issn: - 2399-3650 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Filtering spins by scattering from a lattice of point magnets tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 3 year: '2020' ... --- _id: '7968' abstract: - lang: eng text: Organic materials are known to feature long spin-diffusion times, originating in a generally small spin–orbit coupling observed in these systems. From that perspective, chiral molecules acting as efficient spin selectors pose a puzzle that attracted a lot of attention in recent years. Here, we revisit the physical origins of chiral-induced spin selectivity (CISS) and propose a simple analytic minimal model to describe it. The model treats a chiral molecule as an anisotropic wire with molecular dipole moments aligned arbitrarily with respect to the wire’s axes and is therefore quite general. Importantly, it shows that the helical structure of the molecule is not necessary to observe CISS and other chiral nonhelical molecules can also be considered as potential candidates for the CISS effect. We also show that the suggested simple model captures the main characteristics of CISS observed in the experiment, without the need for additional constraints employed in the previous studies. The results pave the way for understanding other related physical phenomena where the CISS effect plays an essential role. article_processing_charge: Yes (via OA deal) article_type: original author: - first_name: Areg full_name: Ghazaryan, Areg id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87 last_name: Ghazaryan orcid: 0000-0001-9666-3543 - first_name: Yossi full_name: Paltiel, Yossi last_name: Paltiel - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Ghazaryan A, Paltiel Y, Lemeshko M. Analytic model of chiral-induced spin selectivity. The Journal of Physical Chemistry C. 2020;124(21):11716-11721. doi:10.1021/acs.jpcc.0c02584 apa: Ghazaryan, A., Paltiel, Y., & Lemeshko, M. (2020). Analytic model of chiral-induced spin selectivity. The Journal of Physical Chemistry C. American Chemical Society. https://doi.org/10.1021/acs.jpcc.0c02584 chicago: Ghazaryan, Areg, Yossi Paltiel, and Mikhail Lemeshko. “Analytic Model of Chiral-Induced Spin Selectivity.” The Journal of Physical Chemistry C. American Chemical Society, 2020. https://doi.org/10.1021/acs.jpcc.0c02584. ieee: A. Ghazaryan, Y. Paltiel, and M. Lemeshko, “Analytic model of chiral-induced spin selectivity,” The Journal of Physical Chemistry C, vol. 124, no. 21. American Chemical Society, pp. 11716–11721, 2020. ista: Ghazaryan A, Paltiel Y, Lemeshko M. 2020. Analytic model of chiral-induced spin selectivity. The Journal of Physical Chemistry C. 124(21), 11716–11721. mla: Ghazaryan, Areg, et al. “Analytic Model of Chiral-Induced Spin Selectivity.” The Journal of Physical Chemistry C, vol. 124, no. 21, American Chemical Society, 2020, pp. 11716–21, doi:10.1021/acs.jpcc.0c02584. short: A. Ghazaryan, Y. Paltiel, M. Lemeshko, The Journal of Physical Chemistry C 124 (2020) 11716–11721. date_created: 2020-06-16T14:29:59Z date_published: 2020-05-04T00:00:00Z date_updated: 2023-09-05T12:07:15Z day: '04' ddc: - '530' department: - _id: MiLe doi: 10.1021/acs.jpcc.0c02584 ec_funded: 1 external_id: isi: - '000614616200006' file: - access_level: open_access checksum: 25932bb1d0b0a955be0bea4d17facd49 content_type: application/pdf creator: kschuh date_created: 2020-10-20T14:39:47Z date_updated: 2020-10-20T14:39:47Z file_id: '8683' file_name: 2020_PhysChemC_Ghazaryan.pdf file_size: 1543429 relation: main_file success: 1 file_date_updated: 2020-10-20T14:39:47Z has_accepted_license: '1' intvolume: ' 124' isi: 1 issue: '21' language: - iso: eng month: '05' oa: 1 oa_version: Published Version page: 11716-11721 project: - _id: 260C2330-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '754411' name: ISTplus - Postdoctoral Fellowships - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: The Journal of Physical Chemistry C publication_identifier: eissn: - 1932-7455 issn: - 1932-7447 publication_status: published publisher: American Chemical Society quality_controlled: '1' scopus_import: '1' status: public title: Analytic model of chiral-induced spin selectivity tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 124 year: '2020' ... --- _id: '8588' abstract: - lang: eng text: Dipolar (or spatially indirect) excitons (IXs) in semiconductor double quantum well (DQW) subjected to an electric field are neutral species with a dipole moment oriented perpendicular to the DQW plane. Here, we theoretically study interactions between IXs in stacked DQW bilayers, where the dipolar coupling can be either attractive or repulsive depending on the relative positions of the particles. By using microscopic band structure calculations to determine the electronic states forming the excitons, we show that the attractive dipolar interaction between stacked IXs deforms their electronic wave function, thereby increasing the inter-DQW interaction energy and making the IX even more electrically polarizable. Many-particle interaction effects are addressed by considering the coupling between a single IX in one of the DQWs to a cloud of IXs in the other DQW, which is modeled either as a closed-packed lattice or as a continuum IX fluid. We find that the lattice model yields IX interlayer binding energies decreasing with increasing lattice density. This behavior is due to the dominating role of the intra-DQW dipolar repulsion, which prevents more than one exciton from entering the attractive region of the inter-DQW coupling. Finally, both models shows that the single IX distorts the distribution of IXs in the adjacent DQW, thus inducing the formation of an IX dipolar polaron (dipolaron). While the interlayer binding energy reduces with IX density for lattice dipolarons, the continuous polaron model predicts a nonmonotonous dependence on density in semiquantitative agreement with a recent experimental study [cf. Hubert et al., Phys. Rev. X 9, 021026 (2019)]. acknowledgement: "We thank W. Kaganer for discussions and for comment on the manuscript. We acknowledge the financial support from the German-Israeli Foundation (GIF), grant agreement I-1277-303.10/2014. M.L. acknowledges support by the Austrian Science Fund (FWF), under project No. P29902-N27, and by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). A.G. acknowledges support by the European Unions Horizon 2020 research and innovation\r\nprogram under the Marie Skodowska-Curie grant agreement No 754411. P.V.S acknowledges financial support\r\nfrom the Deutsche Forschungsgemeinschaft (DFG) under\r\nProject No. SA 598/12-1." article_number: '045307' article_processing_charge: No article_type: original author: - first_name: C. full_name: Hubert, C. last_name: Hubert - first_name: K. full_name: Cohen, K. last_name: Cohen - first_name: Areg full_name: Ghazaryan, Areg id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87 last_name: Ghazaryan orcid: 0000-0001-9666-3543 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: R. full_name: Rapaport, R. last_name: Rapaport - first_name: P. V. full_name: Santos, P. V. last_name: Santos citation: ama: Hubert C, Cohen K, Ghazaryan A, Lemeshko M, Rapaport R, Santos PV. Attractive interactions, molecular complexes, and polarons in coupled dipolar exciton fluids. Physical Review B. 2020;102(4). doi:10.1103/physrevb.102.045307 apa: Hubert, C., Cohen, K., Ghazaryan, A., Lemeshko, M., Rapaport, R., & Santos, P. V. (2020). Attractive interactions, molecular complexes, and polarons in coupled dipolar exciton fluids. Physical Review B. American Physical Society. https://doi.org/10.1103/physrevb.102.045307 chicago: Hubert, C., K. Cohen, Areg Ghazaryan, Mikhail Lemeshko, R. Rapaport, and P. V. Santos. “Attractive Interactions, Molecular Complexes, and Polarons in Coupled Dipolar Exciton Fluids.” Physical Review B. American Physical Society, 2020. https://doi.org/10.1103/physrevb.102.045307. ieee: C. Hubert, K. Cohen, A. Ghazaryan, M. Lemeshko, R. Rapaport, and P. V. Santos, “Attractive interactions, molecular complexes, and polarons in coupled dipolar exciton fluids,” Physical Review B, vol. 102, no. 4. American Physical Society, 2020. ista: Hubert C, Cohen K, Ghazaryan A, Lemeshko M, Rapaport R, Santos PV. 2020. Attractive interactions, molecular complexes, and polarons in coupled dipolar exciton fluids. Physical Review B. 102(4), 045307. mla: Hubert, C., et al. “Attractive Interactions, Molecular Complexes, and Polarons in Coupled Dipolar Exciton Fluids.” Physical Review B, vol. 102, no. 4, 045307, American Physical Society, 2020, doi:10.1103/physrevb.102.045307. short: C. Hubert, K. Cohen, A. Ghazaryan, M. Lemeshko, R. Rapaport, P.V. Santos, Physical Review B 102 (2020). date_created: 2020-09-30T10:33:43Z date_published: 2020-07-21T00:00:00Z date_updated: 2023-09-05T12:12:10Z day: '21' department: - _id: MiLe doi: 10.1103/physrevb.102.045307 ec_funded: 1 external_id: arxiv: - '1910.06015' isi: - '000550579100004' intvolume: ' 102' isi: 1 issue: '4' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1910.06015 month: '07' oa: 1 oa_version: Preprint project: - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' - _id: 260C2330-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '754411' name: ISTplus - Postdoctoral Fellowships publication: Physical Review B publication_identifier: eissn: - 2469-9969 issn: - 2469-9950 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Attractive interactions, molecular complexes, and polarons in coupled dipolar exciton fluids type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 102 year: '2020' ... --- _id: '8769' abstract: - lang: eng text: One of the hallmarks of quantum statistics, tightly entwined with the concept of topological phases of matter, is the prediction of anyons. Although anyons are predicted to be realized in certain fractional quantum Hall systems, they have not yet been unambiguously detected in experiment. Here we introduce a simple quantum impurity model, where bosonic or fermionic impurities turn into anyons as a consequence of their interaction with the surrounding many-particle bath. A cloud of phonons dresses each impurity in such a way that it effectively attaches fluxes or vortices to it and thereby converts it into an Abelian anyon. The corresponding quantum impurity model, first, provides a different approach to the numerical solution of the many-anyon problem, along with a concrete perspective of anyons as emergent quasiparticles built from composite bosons or fermions. More importantly, the model paves the way toward realizing anyons using impurities in crystal lattices as well as ultracold gases. In particular, we consider two heavy electrons interacting with a two-dimensional lattice crystal in a magnetic field, and show that when the impurity-bath system is rotated at the cyclotron frequency, impurities behave as anyons as a consequence of the angular momentum exchange between the impurities and the bath. A possible experimental realization is proposed by identifying the statistics parameter in terms of the mean-square distance of the impurities and the magnetization of the impurity-bath system, both of which are accessible to experiment. Another proposed application is impurities immersed in a two-dimensional weakly interacting Bose gas. acknowledgement: "We are grateful to M. Correggi, A. Deuchert, and P. Schmelcher for valuable discussions. We also thank the anonymous referees for helping to clarify a few important points in the experimental realization. A.G. acknowledges support by the European Unions Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant agreement\r\nNo 754411. D.L. acknowledges financial support from the Goran Gustafsson Foundation (grant no. 1804) and LMU Munich. R.S., M.L., and N.R. gratefully acknowledge financial support by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreements No 694227, No 801770, and No 758620, respectively)." article_number: '144109' article_processing_charge: No article_type: original author: - first_name: Enderalp full_name: Yakaboylu, Enderalp id: 38CB71F6-F248-11E8-B48F-1D18A9856A87 last_name: Yakaboylu orcid: 0000-0001-5973-0874 - first_name: Areg full_name: Ghazaryan, Areg id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87 last_name: Ghazaryan orcid: 0000-0001-9666-3543 - first_name: D. full_name: Lundholm, D. last_name: Lundholm - first_name: N. full_name: Rougerie, N. last_name: Rougerie - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Robert full_name: Seiringer, Robert id: 4AFD0470-F248-11E8-B48F-1D18A9856A87 last_name: Seiringer orcid: 0000-0002-6781-0521 citation: ama: Yakaboylu E, Ghazaryan A, Lundholm D, Rougerie N, Lemeshko M, Seiringer R. Quantum impurity model for anyons. Physical Review B. 2020;102(14). doi:10.1103/physrevb.102.144109 apa: Yakaboylu, E., Ghazaryan, A., Lundholm, D., Rougerie, N., Lemeshko, M., & Seiringer, R. (2020). Quantum impurity model for anyons. Physical Review B. American Physical Society. https://doi.org/10.1103/physrevb.102.144109 chicago: Yakaboylu, Enderalp, Areg Ghazaryan, D. Lundholm, N. Rougerie, Mikhail Lemeshko, and Robert Seiringer. “Quantum Impurity Model for Anyons.” Physical Review B. American Physical Society, 2020. https://doi.org/10.1103/physrevb.102.144109. ieee: E. Yakaboylu, A. Ghazaryan, D. Lundholm, N. Rougerie, M. Lemeshko, and R. Seiringer, “Quantum impurity model for anyons,” Physical Review B, vol. 102, no. 14. American Physical Society, 2020. ista: Yakaboylu E, Ghazaryan A, Lundholm D, Rougerie N, Lemeshko M, Seiringer R. 2020. Quantum impurity model for anyons. Physical Review B. 102(14), 144109. mla: Yakaboylu, Enderalp, et al. “Quantum Impurity Model for Anyons.” Physical Review B, vol. 102, no. 14, 144109, American Physical Society, 2020, doi:10.1103/physrevb.102.144109. short: E. Yakaboylu, A. Ghazaryan, D. Lundholm, N. Rougerie, M. Lemeshko, R. Seiringer, Physical Review B 102 (2020). date_created: 2020-11-18T07:34:17Z date_published: 2020-10-01T00:00:00Z date_updated: 2023-09-05T12:12:30Z day: '01' department: - _id: MiLe - _id: RoSe doi: 10.1103/physrevb.102.144109 ec_funded: 1 external_id: arxiv: - '1912.07890' isi: - '000582563300001' intvolume: ' 102' isi: 1 issue: '14' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1912.07890 month: '10' oa: 1 oa_version: Preprint project: - _id: 260C2330-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '754411' name: ISTplus - Postdoctoral Fellowships - _id: 25C6DC12-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '694227' name: Analysis of quantum many-body systems - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' publication: Physical Review B publication_identifier: eissn: - 2469-9969 issn: - 2469-9950 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Quantum impurity model for anyons type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 102 year: '2020' ... --- _id: '8587' abstract: - lang: eng text: Inspired by the possibility to experimentally manipulate and enhance chemical reactivity in helium nanodroplets, we investigate the effective interaction and the resulting correlations between two diatomic molecules immersed in a bath of bosons. By analogy with the bipolaron, we introduce the biangulon quasiparticle describing two rotating molecules that align with respect to each other due to the effective attractive interaction mediated by the excitations of the bath. We study this system in different parameter regimes and apply several theoretical approaches to describe its properties. Using a Born–Oppenheimer approximation, we investigate the dependence of the effective intermolecular interaction on the rotational state of the two molecules. In the strong-coupling regime, a product-state ansatz shows that the molecules tend to have a strong alignment in the ground state. To investigate the system in the weak-coupling regime, we apply a one-phonon excitation variational ansatz, which allows us to access the energy spectrum. In comparison to the angulon quasiparticle, the biangulon shows shifted angulon instabilities and an additional spectral instability, where resonant angular momentum transfer between the molecules and the bath takes place. These features are proposed as an experimentally observable signature for the formation of the biangulon quasiparticle. Finally, by using products of single angulon and bare impurity wave functions as basis states, we introduce a diagonalization scheme that allows us to describe the transition from two separated angulons to a biangulon as a function of the distance between the two molecules. acknowledgement: We are grateful to Areg Ghazaryan for valuable discussions. M.L. acknowledges support from the Austrian Science Fund (FWF) under Project No. P29902-N27 and from the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). G.B. acknowledges support from the Austrian Science Fund (FWF) under Project No. M2461-N27. A.D. acknowledges funding from the European Union’s Horizon 2020 research and innovation programme under the European Research Council (ERC) Grant Agreement No. 694227 and under the Marie Sklodowska-Curie Grant Agreement No. 836146. R.S. was supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy – EXC-2111 – 390814868. article_number: '164302' article_processing_charge: No article_type: original author: - first_name: Xiang full_name: Li, Xiang id: 4B7E523C-F248-11E8-B48F-1D18A9856A87 last_name: Li - first_name: Enderalp full_name: Yakaboylu, Enderalp id: 38CB71F6-F248-11E8-B48F-1D18A9856A87 last_name: Yakaboylu orcid: 0000-0001-5973-0874 - first_name: Giacomo full_name: Bighin, Giacomo id: 4CA96FD4-F248-11E8-B48F-1D18A9856A87 last_name: Bighin orcid: 0000-0001-8823-9777 - first_name: Richard full_name: Schmidt, Richard last_name: Schmidt - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Andreas full_name: Deuchert, Andreas id: 4DA65CD0-F248-11E8-B48F-1D18A9856A87 last_name: Deuchert orcid: 0000-0003-3146-6746 citation: ama: Li X, Yakaboylu E, Bighin G, Schmidt R, Lemeshko M, Deuchert A. Intermolecular forces and correlations mediated by a phonon bath. The Journal of Chemical Physics. 2020;152(16). doi:10.1063/1.5144759 apa: Li, X., Yakaboylu, E., Bighin, G., Schmidt, R., Lemeshko, M., & Deuchert, A. (2020). Intermolecular forces and correlations mediated by a phonon bath. The Journal of Chemical Physics. AIP Publishing. https://doi.org/10.1063/1.5144759 chicago: Li, Xiang, Enderalp Yakaboylu, Giacomo Bighin, Richard Schmidt, Mikhail Lemeshko, and Andreas Deuchert. “Intermolecular Forces and Correlations Mediated by a Phonon Bath.” The Journal of Chemical Physics. AIP Publishing, 2020. https://doi.org/10.1063/1.5144759. ieee: X. Li, E. Yakaboylu, G. Bighin, R. Schmidt, M. Lemeshko, and A. Deuchert, “Intermolecular forces and correlations mediated by a phonon bath,” The Journal of Chemical Physics, vol. 152, no. 16. AIP Publishing, 2020. ista: Li X, Yakaboylu E, Bighin G, Schmidt R, Lemeshko M, Deuchert A. 2020. Intermolecular forces and correlations mediated by a phonon bath. The Journal of Chemical Physics. 152(16), 164302. mla: Li, Xiang, et al. “Intermolecular Forces and Correlations Mediated by a Phonon Bath.” The Journal of Chemical Physics, vol. 152, no. 16, 164302, AIP Publishing, 2020, doi:10.1063/1.5144759. short: X. Li, E. Yakaboylu, G. Bighin, R. Schmidt, M. Lemeshko, A. Deuchert, The Journal of Chemical Physics 152 (2020). date_created: 2020-09-30T10:33:17Z date_published: 2020-04-27T00:00:00Z date_updated: 2023-09-07T13:16:42Z day: '27' department: - _id: MiLe - _id: RoSe doi: 10.1063/1.5144759 ec_funded: 1 external_id: arxiv: - '1912.02658' isi: - '000530448300001' intvolume: ' 152' isi: 1 issue: '16' keyword: - Physical and Theoretical Chemistry - General Physics and Astronomy language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1912.02658 month: '04' oa: 1 oa_version: Preprint project: - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment - _id: 2688CF98-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '801770' name: 'Angulon: physics and applications of a new quasiparticle' - _id: 26986C82-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: M02641 name: A path-integral approach to composite impurities - _id: 25C6DC12-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '694227' name: Analysis of quantum many-body systems publication: The Journal of Chemical Physics publication_identifier: eissn: - 1089-7690 issn: - 0021-9606 publication_status: published publisher: AIP Publishing quality_controlled: '1' related_material: record: - id: '8958' relation: dissertation_contains status: public status: public title: Intermolecular forces and correlations mediated by a phonon bath type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 152 year: '2020' ... --- _id: '5886' abstract: - lang: eng text: Problems involving quantum impurities, in which one or a few particles are interacting with a macroscopic environment, represent a pervasive paradigm, spanning across atomic, molecular, and condensed-matter physics. In this paper we introduce new variational approaches to quantum impurities and apply them to the Fröhlich polaron–a quasiparticle formed out of an electron (or other point-like impurity) in a polar medium, and to the angulon–a quasiparticle formed out of a rotating molecule in a bosonic bath. We benchmark these approaches against established theories, evaluating their accuracy as a function of the impurity-bath coupling. article_processing_charge: No author: - first_name: Xiang full_name: Li, Xiang id: 4B7E523C-F248-11E8-B48F-1D18A9856A87 last_name: Li - first_name: Giacomo full_name: Bighin, Giacomo id: 4CA96FD4-F248-11E8-B48F-1D18A9856A87 last_name: Bighin orcid: 0000-0001-8823-9777 - first_name: Enderalp full_name: Yakaboylu, Enderalp id: 38CB71F6-F248-11E8-B48F-1D18A9856A87 last_name: Yakaboylu orcid: 0000-0001-5973-0874 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: 'Li X, Bighin G, Yakaboylu E, Lemeshko M. Variational approaches to quantum impurities: from the Fröhlich polaron to the angulon. Molecular Physics. 2019. doi:10.1080/00268976.2019.1567852' apa: 'Li, X., Bighin, G., Yakaboylu, E., & Lemeshko, M. (2019). Variational approaches to quantum impurities: from the Fröhlich polaron to the angulon. Molecular Physics. Taylor and Francis. https://doi.org/10.1080/00268976.2019.1567852' chicago: 'Li, Xiang, Giacomo Bighin, Enderalp Yakaboylu, and Mikhail Lemeshko. “Variational Approaches to Quantum Impurities: From the Fröhlich Polaron to the Angulon.” Molecular Physics. Taylor and Francis, 2019. https://doi.org/10.1080/00268976.2019.1567852.' ieee: 'X. Li, G. Bighin, E. Yakaboylu, and M. Lemeshko, “Variational approaches to quantum impurities: from the Fröhlich polaron to the angulon,” Molecular Physics. Taylor and Francis, 2019.' ista: 'Li X, Bighin G, Yakaboylu E, Lemeshko M. 2019. Variational approaches to quantum impurities: from the Fröhlich polaron to the angulon. Molecular Physics.' mla: 'Li, Xiang, et al. “Variational Approaches to Quantum Impurities: From the Fröhlich Polaron to the Angulon.” Molecular Physics, Taylor and Francis, 2019, doi:10.1080/00268976.2019.1567852.' short: X. Li, G. Bighin, E. Yakaboylu, M. Lemeshko, Molecular Physics (2019). date_created: 2019-01-27T22:59:10Z date_published: 2019-01-18T00:00:00Z date_updated: 2023-09-07T13:16:42Z day: '18' ddc: - '530' department: - _id: MiLe doi: 10.1080/00268976.2019.1567852 ec_funded: 1 external_id: isi: - '000474641400008' file: - access_level: open_access checksum: 178964744b636a6f036372f4f090a657 content_type: application/pdf creator: dernst date_created: 2019-01-29T08:32:57Z date_updated: 2020-07-14T12:47:13Z file_id: '5896' file_name: 2019_MolecularPhysics_Li.pdf file_size: 1309966 relation: main_file file_date_updated: 2020-07-14T12:47:13Z has_accepted_license: '1' isi: 1 language: - iso: eng month: '01' oa: 1 oa_version: Published Version project: - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication: Molecular Physics publication_identifier: issn: - '00268976' publication_status: published publisher: Taylor and Francis quality_controlled: '1' related_material: record: - id: '8958' relation: dissertation_contains status: public scopus_import: '1' status: public title: 'Variational approaches to quantum impurities: from the Fröhlich polaron to the angulon' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 year: '2019' ... --- _id: '6092' abstract: - lang: eng text: In 1915, Einstein and de Haas and Barnett demonstrated that changing the magnetization of a magnetic material results in mechanical rotation and vice versa. At the microscopic level, this effect governs the transfer between electron spin and orbital angular momentum, and lattice degrees of freedom, understanding which is key for molecular magnets, nano-magneto-mechanics, spintronics, and ultrafast magnetism. Until now, the timescales of electron-to-lattice angular momentum transfer remain unclear, since modeling this process on a microscopic level requires the addition of an infinite amount of quantum angular momenta. We show that this problem can be solved by reformulating it in terms of the recently discovered angulon quasiparticles, which results in a rotationally invariant quantum many-body theory. In particular, we demonstrate that nonperturbative effects take place even if the electron-phonon coupling is weak and give rise to angular momentum transfer on femtosecond timescales. article_number: '064428' article_processing_charge: No author: - first_name: Johann H full_name: Mentink, Johann H last_name: Mentink - first_name: Mikhail full_name: Katsnelson, Mikhail last_name: Katsnelson - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Mentink JH, Katsnelson M, Lemeshko M. Quantum many-body dynamics of the Einstein-de Haas effect. Physical Review B. 2019;99(6). doi:10.1103/PhysRevB.99.064428 apa: Mentink, J. H., Katsnelson, M., & Lemeshko, M. (2019). Quantum many-body dynamics of the Einstein-de Haas effect. Physical Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.99.064428 chicago: Mentink, Johann H, Mikhail Katsnelson, and Mikhail Lemeshko. “Quantum Many-Body Dynamics of the Einstein-de Haas Effect.” Physical Review B. American Physical Society, 2019. https://doi.org/10.1103/PhysRevB.99.064428. ieee: J. H. Mentink, M. Katsnelson, and M. Lemeshko, “Quantum many-body dynamics of the Einstein-de Haas effect,” Physical Review B, vol. 99, no. 6. American Physical Society, 2019. ista: Mentink JH, Katsnelson M, Lemeshko M. 2019. Quantum many-body dynamics of the Einstein-de Haas effect. Physical Review B. 99(6), 064428. mla: Mentink, Johann H., et al. “Quantum Many-Body Dynamics of the Einstein-de Haas Effect.” Physical Review B, vol. 99, no. 6, 064428, American Physical Society, 2019, doi:10.1103/PhysRevB.99.064428. short: J.H. Mentink, M. Katsnelson, M. Lemeshko, Physical Review B 99 (2019). date_created: 2019-03-10T22:59:20Z date_published: 2019-02-01T00:00:00Z date_updated: 2024-02-28T13:11:54Z day: '01' department: - _id: MiLe doi: 10.1103/PhysRevB.99.064428 external_id: arxiv: - '1802.01638' isi: - '000459223400004' intvolume: ' 99' isi: 1 issue: '6' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1802.01638 month: '02' oa: 1 oa_version: Preprint project: - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment publication: Physical Review B publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Quantum many-body dynamics of the Einstein-de Haas effect type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 99 year: '2019' ... --- _id: '6786' abstract: - lang: eng text: Dipolar coupling plays a fundamental role in the interaction between electrically or magnetically polarized species such as magnetic atoms and dipolar molecules in a gas or dipolar excitons in the solid state. Unlike Coulomb or contactlike interactions found in many atomic, molecular, and condensed-matter systems, this interaction is long-ranged and highly anisotropic, as it changes from repulsive to attractive depending on the relative positions and orientation of the dipoles. Because of this unique property, many exotic, symmetry-breaking collective states have been recently predicted for cold dipolar gases, but only a few have been experimentally detected and only in dilute atomic dipolar Bose-Einstein condensates. Here, we report on the first observation of attractive dipolar coupling between excitonic dipoles using a new design of stacked semiconductor bilayers. We show that the presence of a dipolar exciton fluid in one bilayer modifies the spatial distribution and increases the binding energy of excitonic dipoles in a vertically remote layer. The binding energy changes are explained using a many-body polaron model describing the deformation of the exciton cloud due to its interaction with a remote dipolar exciton. The surprising nonmonotonic dependence on the cloud density indicates the important role of dipolar correlations, which is unique to dense, strongly interacting dipolar solid-state systems. Our concept provides a route for the realization of dipolar lattices with strong anisotropic interactions in semiconductor systems, which open the way for the observation of theoretically predicted new and exotic collective phases, as well as for engineering and sensing their collective excitations. article_number: '021026' article_processing_charge: No article_type: original author: - first_name: Colin full_name: Hubert, Colin last_name: Hubert - first_name: Yifat full_name: Baruchi, Yifat last_name: Baruchi - first_name: Yotam full_name: Mazuz-Harpaz, Yotam last_name: Mazuz-Harpaz - first_name: Kobi full_name: Cohen, Kobi last_name: Cohen - first_name: Klaus full_name: Biermann, Klaus last_name: Biermann - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Ken full_name: West, Ken last_name: West - first_name: Loren full_name: Pfeiffer, Loren last_name: Pfeiffer - first_name: Ronen full_name: Rapaport, Ronen last_name: Rapaport - first_name: Paulo full_name: Santos, Paulo last_name: Santos citation: ama: Hubert C, Baruchi Y, Mazuz-Harpaz Y, et al. Attractive dipolar coupling between stacked exciton fluids. Physical Review X. 2019;9(2). doi:10.1103/PhysRevX.9.021026 apa: Hubert, C., Baruchi, Y., Mazuz-Harpaz, Y., Cohen, K., Biermann, K., Lemeshko, M., … Santos, P. (2019). Attractive dipolar coupling between stacked exciton fluids. Physical Review X. American Physical Society. https://doi.org/10.1103/PhysRevX.9.021026 chicago: Hubert, Colin, Yifat Baruchi, Yotam Mazuz-Harpaz, Kobi Cohen, Klaus Biermann, Mikhail Lemeshko, Ken West, Loren Pfeiffer, Ronen Rapaport, and Paulo Santos. “Attractive Dipolar Coupling between Stacked Exciton Fluids.” Physical Review X. American Physical Society, 2019. https://doi.org/10.1103/PhysRevX.9.021026. ieee: C. Hubert et al., “Attractive dipolar coupling between stacked exciton fluids,” Physical Review X, vol. 9, no. 2. American Physical Society, 2019. ista: Hubert C, Baruchi Y, Mazuz-Harpaz Y, Cohen K, Biermann K, Lemeshko M, West K, Pfeiffer L, Rapaport R, Santos P. 2019. Attractive dipolar coupling between stacked exciton fluids. Physical Review X. 9(2), 021026. mla: Hubert, Colin, et al. “Attractive Dipolar Coupling between Stacked Exciton Fluids.” Physical Review X, vol. 9, no. 2, 021026, American Physical Society, 2019, doi:10.1103/PhysRevX.9.021026. short: C. Hubert, Y. Baruchi, Y. Mazuz-Harpaz, K. Cohen, K. Biermann, M. Lemeshko, K. West, L. Pfeiffer, R. Rapaport, P. Santos, Physical Review X 9 (2019). date_created: 2019-08-11T21:59:20Z date_published: 2019-05-08T00:00:00Z date_updated: 2024-02-28T13:12:48Z day: '08' ddc: - '530' department: - _id: MiLe doi: 10.1103/PhysRevX.9.021026 external_id: arxiv: - '1807.11238' isi: - '000467402900001' file: - access_level: open_access checksum: 065ff82ee4a1d2c3773ce4b76ff4213c content_type: application/pdf creator: dernst date_created: 2019-08-12T12:14:18Z date_updated: 2020-07-14T12:47:40Z file_id: '6802' file_name: 2019_PhysReviewX_Hubert.pdf file_size: 1193550 relation: main_file file_date_updated: 2020-07-14T12:47:40Z has_accepted_license: '1' intvolume: ' 9' isi: 1 issue: '2' language: - iso: eng month: '05' oa: 1 oa_version: Published Version project: - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment publication: Physical Review X publication_identifier: eissn: - 2160-3308 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Attractive dipolar coupling between stacked exciton fluids tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 9 year: '2019' ... --- _id: '7396' abstract: - lang: eng text: The angular momentum of molecules, or, equivalently, their rotation in three-dimensional space, is ideally suited for quantum control. Molecular angular momentum is naturally quantized, time evolution is governed by a well-known Hamiltonian with only a few accurately known parameters, and transitions between rotational levels can be driven by external fields from various parts of the electromagnetic spectrum. Control over the rotational motion can be exerted in one-, two-, and many-body scenarios, thereby allowing one to probe Anderson localization, target stereoselectivity of bimolecular reactions, or encode quantum information to name just a few examples. The corresponding approaches to quantum control are pursued within separate, and typically disjoint, subfields of physics, including ultrafast science, cold collisions, ultracold gases, quantum information science, and condensed-matter physics. It is the purpose of this review to present the various control phenomena, which all rely on the same underlying physics, within a unified framework. To this end, recall the Hamiltonian for free rotations, assuming the rigid rotor approximation to be valid, and summarize the different ways for a rotor to interact with external electromagnetic fields. These interactions can be exploited for control—from achieving alignment, orientation, or laser cooling in a one-body framework, steering bimolecular collisions, or realizing a quantum computer or quantum simulator in the many-body setting. article_number: '035005 ' article_processing_charge: No article_type: original author: - first_name: Christiane P. full_name: Koch, Christiane P. last_name: Koch - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Dominique full_name: Sugny, Dominique last_name: Sugny citation: ama: Koch CP, Lemeshko M, Sugny D. Quantum control of molecular rotation. Reviews of Modern Physics. 2019;91(3). doi:10.1103/revmodphys.91.035005 apa: Koch, C. P., Lemeshko, M., & Sugny, D. (2019). Quantum control of molecular rotation. Reviews of Modern Physics. American Physical Society. https://doi.org/10.1103/revmodphys.91.035005 chicago: Koch, Christiane P., Mikhail Lemeshko, and Dominique Sugny. “Quantum Control of Molecular Rotation.” Reviews of Modern Physics. American Physical Society, 2019. https://doi.org/10.1103/revmodphys.91.035005. ieee: C. P. Koch, M. Lemeshko, and D. Sugny, “Quantum control of molecular rotation,” Reviews of Modern Physics, vol. 91, no. 3. American Physical Society, 2019. ista: Koch CP, Lemeshko M, Sugny D. 2019. Quantum control of molecular rotation. Reviews of Modern Physics. 91(3), 035005. mla: Koch, Christiane P., et al. “Quantum Control of Molecular Rotation.” Reviews of Modern Physics, vol. 91, no. 3, 035005, American Physical Society, 2019, doi:10.1103/revmodphys.91.035005. short: C.P. Koch, M. Lemeshko, D. Sugny, Reviews of Modern Physics 91 (2019). date_created: 2020-01-29T16:04:19Z date_published: 2019-09-18T00:00:00Z date_updated: 2024-02-28T13:15:33Z day: '18' department: - _id: MiLe doi: 10.1103/revmodphys.91.035005 external_id: arxiv: - '1810.11338' isi: - '000486661700001' intvolume: ' 91' isi: 1 issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1810.11338 month: '09' oa: 1 oa_version: Preprint project: - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment publication: Reviews of Modern Physics publication_identifier: eissn: - 1539-0756 issn: - 0034-6861 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Quantum control of molecular rotation type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 91 year: '2019' ... --- _id: '195' abstract: - lang: eng text: We demonstrate that identical impurities immersed in a two-dimensional many-particle bath can be viewed as flux-tube-charged-particle composites described by fractional statistics. In particular, we find that the bath manifests itself as an external magnetic flux tube with respect to the impurities, and hence the time-reversal symmetry is broken for the effective Hamiltonian describing the impurities. The emerging flux tube acts as a statistical gauge field after a certain critical coupling. This critical coupling corresponds to the intersection point between the quasiparticle state and the phonon wing, where the angular momentum is transferred from the impurity to the bath. This amounts to a novel configuration with emerging anyons. The proposed setup paves the way to realizing anyons using electrons interacting with superfluid helium or lattice phonons, as well as using atomic impurities in ultracold gases. article_number: '045402' article_processing_charge: No author: - first_name: Enderalp full_name: Yakaboylu, Enderalp id: 38CB71F6-F248-11E8-B48F-1D18A9856A87 last_name: Yakaboylu orcid: 0000-0001-5973-0874 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Yakaboylu E, Lemeshko M. Anyonic statistics of quantum impurities in two dimensions. Physical Review B - Condensed Matter and Materials Physics. 2018;98(4). doi:10.1103/PhysRevB.98.045402 apa: Yakaboylu, E., & Lemeshko, M. (2018). Anyonic statistics of quantum impurities in two dimensions. Physical Review B - Condensed Matter and Materials Physics. American Physical Society. https://doi.org/10.1103/PhysRevB.98.045402 chicago: Yakaboylu, Enderalp, and Mikhail Lemeshko. “Anyonic Statistics of Quantum Impurities in Two Dimensions.” Physical Review B - Condensed Matter and Materials Physics. American Physical Society, 2018. https://doi.org/10.1103/PhysRevB.98.045402. ieee: E. Yakaboylu and M. Lemeshko, “Anyonic statistics of quantum impurities in two dimensions,” Physical Review B - Condensed Matter and Materials Physics, vol. 98, no. 4. American Physical Society, 2018. ista: Yakaboylu E, Lemeshko M. 2018. Anyonic statistics of quantum impurities in two dimensions. Physical Review B - Condensed Matter and Materials Physics. 98(4), 045402. mla: Yakaboylu, Enderalp, and Mikhail Lemeshko. “Anyonic Statistics of Quantum Impurities in Two Dimensions.” Physical Review B - Condensed Matter and Materials Physics, vol. 98, no. 4, 045402, American Physical Society, 2018, doi:10.1103/PhysRevB.98.045402. short: E. Yakaboylu, M. Lemeshko, Physical Review B - Condensed Matter and Materials Physics 98 (2018). date_created: 2018-12-11T11:45:08Z date_published: 2018-07-15T00:00:00Z date_updated: 2023-09-08T13:22:57Z day: '15' department: - _id: MiLe doi: 10.1103/PhysRevB.98.045402 ec_funded: 1 external_id: arxiv: - '1712.00308' isi: - '000436939100007' intvolume: ' 98' isi: 1 issue: '4' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1712.00308 month: '07' oa: 1 oa_version: Submitted Version project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment publication: Physical Review B - Condensed Matter and Materials Physics publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Anyonic statistics of quantum impurities in two dimensions type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 98 year: '2018' ... --- _id: '5794' abstract: - lang: eng text: We present an approach to interacting quantum many-body systems based on the notion of quantum groups, also known as q-deformed Lie algebras. In particular, we show that, if the symmetry of a free quantum particle corresponds to a Lie group G, in the presence of a many-body environment this particle can be described by a deformed group, Gq. Crucially, the single deformation parameter, q, contains all the information about the many-particle interactions in the system. We exemplify our approach by considering a quantum rotor interacting with a bath of bosons, and demonstrate that extracting the value of q from closed-form solutions in the perturbative regime allows one to predict the behavior of the system for arbitrary values of the impurity-bath coupling strength, in good agreement with nonperturbative calculations. Furthermore, the value of the deformation parameter allows one to predict at which coupling strengths rotor-bath interactions result in a formation of a stable quasiparticle. The approach based on quantum groups does not only allow for a drastic simplification of impurity problems, but also provides valuable insights into hidden symmetries of interacting many-particle systems. article_number: '255302' article_processing_charge: No article_type: original author: - first_name: Enderalp full_name: Yakaboylu, Enderalp id: 38CB71F6-F248-11E8-B48F-1D18A9856A87 last_name: Yakaboylu orcid: 0000-0001-5973-0874 - first_name: Mikhail full_name: Shkolnikov, Mikhail id: 35084A62-F248-11E8-B48F-1D18A9856A87 last_name: Shkolnikov orcid: 0000-0002-4310-178X - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Yakaboylu E, Shkolnikov M, Lemeshko M. Quantum groups as hidden symmetries of quantum impurities. Physical Review Letters. 2018;121(25). doi:10.1103/PhysRevLett.121.255302 apa: Yakaboylu, E., Shkolnikov, M., & Lemeshko, M. (2018). Quantum groups as hidden symmetries of quantum impurities. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.121.255302 chicago: Yakaboylu, Enderalp, Mikhail Shkolnikov, and Mikhail Lemeshko. “Quantum Groups as Hidden Symmetries of Quantum Impurities.” Physical Review Letters. American Physical Society, 2018. https://doi.org/10.1103/PhysRevLett.121.255302. ieee: E. Yakaboylu, M. Shkolnikov, and M. Lemeshko, “Quantum groups as hidden symmetries of quantum impurities,” Physical Review Letters, vol. 121, no. 25. American Physical Society, 2018. ista: Yakaboylu E, Shkolnikov M, Lemeshko M. 2018. Quantum groups as hidden symmetries of quantum impurities. Physical Review Letters. 121(25), 255302. mla: Yakaboylu, Enderalp, et al. “Quantum Groups as Hidden Symmetries of Quantum Impurities.” Physical Review Letters, vol. 121, no. 25, 255302, American Physical Society, 2018, doi:10.1103/PhysRevLett.121.255302. short: E. Yakaboylu, M. Shkolnikov, M. Lemeshko, Physical Review Letters 121 (2018). date_created: 2019-01-06T22:59:12Z date_published: 2018-12-17T00:00:00Z date_updated: 2023-09-15T12:09:06Z day: '17' department: - _id: MiLe doi: 10.1103/PhysRevLett.121.255302 ec_funded: 1 external_id: arxiv: - '1809.00222' isi: - '000454178600009' intvolume: ' 121' isi: 1 issue: '25' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1809.00222 month: '12' oa: 1 oa_version: Preprint project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment publication: Physical Review Letters publication_identifier: issn: - '00319007' publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Quantum groups as hidden symmetries of quantum impurities type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 121 year: '2018' ... --- _id: '5983' abstract: - lang: eng text: We study a quantum impurity possessing both translational and internal rotational degrees of freedom interacting with a bosonic bath. Such a system corresponds to a “rotating polaron,” which can be used to model, e.g., a rotating molecule immersed in an ultracold Bose gas or superfluid helium. We derive the Hamiltonian of the rotating polaron and study its spectrum in the weak- and strong-coupling regimes using a combination of variational, diagrammatic, and mean-field approaches. We reveal how the coupling between linear and angular momenta affects stable quasiparticle states, and demonstrate that internal rotation leads to an enhanced self-localization in the translational degrees of freedom. article_number: '224506' article_processing_charge: No author: - first_name: Enderalp full_name: Yakaboylu, Enderalp id: 38CB71F6-F248-11E8-B48F-1D18A9856A87 last_name: Yakaboylu orcid: 0000-0001-5973-0874 - first_name: Bikashkali full_name: Midya, Bikashkali id: 456187FC-F248-11E8-B48F-1D18A9856A87 last_name: Midya - first_name: Andreas full_name: Deuchert, Andreas id: 4DA65CD0-F248-11E8-B48F-1D18A9856A87 last_name: Deuchert orcid: 0000-0003-3146-6746 - first_name: Nikolai K full_name: Leopold, Nikolai K id: 4BC40BEC-F248-11E8-B48F-1D18A9856A87 last_name: Leopold orcid: 0000-0002-0495-6822 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: 'Yakaboylu E, Midya B, Deuchert A, Leopold NK, Lemeshko M. Theory of the rotating polaron: Spectrum and self-localization. Physical Review B. 2018;98(22). doi:10.1103/physrevb.98.224506' apa: 'Yakaboylu, E., Midya, B., Deuchert, A., Leopold, N. K., & Lemeshko, M. (2018). Theory of the rotating polaron: Spectrum and self-localization. Physical Review B. American Physical Society. https://doi.org/10.1103/physrevb.98.224506' chicago: 'Yakaboylu, Enderalp, Bikashkali Midya, Andreas Deuchert, Nikolai K Leopold, and Mikhail Lemeshko. “Theory of the Rotating Polaron: Spectrum and Self-Localization.” Physical Review B. American Physical Society, 2018. https://doi.org/10.1103/physrevb.98.224506.' ieee: 'E. Yakaboylu, B. Midya, A. Deuchert, N. K. Leopold, and M. Lemeshko, “Theory of the rotating polaron: Spectrum and self-localization,” Physical Review B, vol. 98, no. 22. American Physical Society, 2018.' ista: 'Yakaboylu E, Midya B, Deuchert A, Leopold NK, Lemeshko M. 2018. Theory of the rotating polaron: Spectrum and self-localization. Physical Review B. 98(22), 224506.' mla: 'Yakaboylu, Enderalp, et al. “Theory of the Rotating Polaron: Spectrum and Self-Localization.” Physical Review B, vol. 98, no. 22, 224506, American Physical Society, 2018, doi:10.1103/physrevb.98.224506.' short: E. Yakaboylu, B. Midya, A. Deuchert, N.K. Leopold, M. Lemeshko, Physical Review B 98 (2018). date_created: 2019-02-14T10:37:09Z date_published: 2018-12-12T00:00:00Z date_updated: 2023-09-19T14:29:03Z day: '12' department: - _id: MiLe - _id: RoSe doi: 10.1103/physrevb.98.224506 ec_funded: 1 external_id: arxiv: - '1809.01204' isi: - '000452992700008' intvolume: ' 98' isi: 1 issue: '22' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1809.01204 month: '12' oa: 1 oa_version: Preprint project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme - _id: 25C6DC12-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '694227' name: Analysis of quantum many-body systems publication: Physical Review B publication_identifier: eissn: - 2469-9969 issn: - 2469-9950 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: 'Theory of the rotating polaron: Spectrum and self-localization' type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 98 year: '2018' ... --- _id: '415' abstract: - lang: eng text: Recently it was shown that a molecule rotating in a quantum solvent can be described in terms of the “angulon” quasiparticle [M. Lemeshko, Phys. Rev. Lett. 118, 095301 (2017)]. Here we extend the angulon theory to the case of molecules possessing an additional spin-1/2 degree of freedom and study the behavior of the system in the presence of a static magnetic field. We show that exchange of angular momentum between the molecule and the solvent can be altered by the field, even though the solvent itself is non-magnetic. In particular, we demonstrate a possibility to control resonant emission of phonons with a given angular momentum using a magnetic field. acknowledgement: "We acknowledge insightful discussions with Giacomo Bighin, Igor Cherepanov, Johan Mentink, and Enderalp Yakaboylu. This work was supported by the Austrian Science Fund (FWF), Project No. P29902-N27. W.R. was supported by the Polish Ministry of Science and Higher Education Grant No. MNISW/2016/DIR/285/NN and by the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 665385.\r\n" article_number: '104307' article_processing_charge: No article_type: original author: - first_name: Wojciech full_name: Rzadkowski, Wojciech id: 48C55298-F248-11E8-B48F-1D18A9856A87 last_name: Rzadkowski orcid: 0000-0002-1106-4419 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Rzadkowski W, Lemeshko M. Effect of a magnetic field on molecule–solvent angular momentum transfer. The Journal of Chemical Physics. 2018;148(10). doi:10.1063/1.5017591 apa: Rzadkowski, W., & Lemeshko, M. (2018). Effect of a magnetic field on molecule–solvent angular momentum transfer. The Journal of Chemical Physics. AIP Publishing. https://doi.org/10.1063/1.5017591 chicago: Rzadkowski, Wojciech, and Mikhail Lemeshko. “Effect of a Magnetic Field on Molecule–Solvent Angular Momentum Transfer.” The Journal of Chemical Physics. AIP Publishing, 2018. https://doi.org/10.1063/1.5017591. ieee: W. Rzadkowski and M. Lemeshko, “Effect of a magnetic field on molecule–solvent angular momentum transfer,” The Journal of Chemical Physics, vol. 148, no. 10. AIP Publishing, 2018. ista: Rzadkowski W, Lemeshko M. 2018. Effect of a magnetic field on molecule–solvent angular momentum transfer. The Journal of Chemical Physics. 148(10), 104307. mla: Rzadkowski, Wojciech, and Mikhail Lemeshko. “Effect of a Magnetic Field on Molecule–Solvent Angular Momentum Transfer.” The Journal of Chemical Physics, vol. 148, no. 10, 104307, AIP Publishing, 2018, doi:10.1063/1.5017591. short: W. Rzadkowski, M. Lemeshko, The Journal of Chemical Physics 148 (2018). date_created: 2018-12-11T11:46:21Z date_published: 2018-03-14T00:00:00Z date_updated: 2024-02-28T13:01:59Z day: '14' department: - _id: MiLe doi: 10.1063/1.5017591 ec_funded: 1 external_id: arxiv: - '1711.09904' isi: - '000427517200065' intvolume: ' 148' isi: 1 issue: '10' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1711.09904 month: '03' oa: 1 oa_version: Preprint project: - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment - _id: 2564DBCA-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '665385' name: International IST Doctoral Program publication: The Journal of Chemical Physics publication_status: published publisher: AIP Publishing publist_id: '7408' quality_controlled: '1' related_material: record: - id: '10759' relation: dissertation_contains status: public scopus_import: '1' status: public title: Effect of a magnetic field on molecule–solvent angular momentum transfer type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 148 year: '2018' ... --- _id: '6339' abstract: - lang: eng text: We introduce a diagrammatic Monte Carlo approach to angular momentum properties of quantum many-particle systems possessing a macroscopic number of degrees of freedom. The treatment is based on a diagrammatic expansion that merges the usual Feynman diagrams with the angular momentum diagrams known from atomic and nuclear structure theory, thereby incorporating the non-Abelian algebra inherent to quantum rotations. Our approach is applicable at arbitrary coupling, is free of systematic errors and of finite-size effects, and naturally provides access to the impurity Green function. We exemplify the technique by obtaining an all-coupling solution of the angulon model; however, the method is quite general and can be applied to a broad variety of systems in which particles exchange quantum angular momentum with their many-body environment. article_number: '165301' article_processing_charge: No author: - first_name: Giacomo full_name: Bighin, Giacomo id: 4CA96FD4-F248-11E8-B48F-1D18A9856A87 last_name: Bighin orcid: 0000-0001-8823-9777 - first_name: Timur full_name: Tscherbul, Timur last_name: Tscherbul - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Bighin G, Tscherbul T, Lemeshko M. Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems. Physical Review Letters. 2018;121(16). doi:10.1103/physrevlett.121.165301 apa: Bighin, G., Tscherbul, T., & Lemeshko, M. (2018). Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems. Physical Review Letters. American Physical Society. https://doi.org/10.1103/physrevlett.121.165301 chicago: Bighin, Giacomo, Timur Tscherbul, and Mikhail Lemeshko. “Diagrammatic Monte Carlo Approach to Angular Momentum in Quantum Many-Particle Systems.” Physical Review Letters. American Physical Society, 2018. https://doi.org/10.1103/physrevlett.121.165301. ieee: G. Bighin, T. Tscherbul, and M. Lemeshko, “Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems,” Physical Review Letters, vol. 121, no. 16. American Physical Society, 2018. ista: Bighin G, Tscherbul T, Lemeshko M. 2018. Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems. Physical Review Letters. 121(16), 165301. mla: Bighin, Giacomo, et al. “Diagrammatic Monte Carlo Approach to Angular Momentum in Quantum Many-Particle Systems.” Physical Review Letters, vol. 121, no. 16, 165301, American Physical Society, 2018, doi:10.1103/physrevlett.121.165301. short: G. Bighin, T. Tscherbul, M. Lemeshko, Physical Review Letters 121 (2018). date_created: 2019-04-17T10:53:38Z date_published: 2018-10-16T00:00:00Z date_updated: 2024-02-28T13:15:09Z day: '16' department: - _id: MiLe doi: 10.1103/physrevlett.121.165301 external_id: arxiv: - '1803.07990' isi: - '000447468400008' intvolume: ' 121' isi: 1 issue: '16' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1803.07990 month: '10' oa: 1 oa_version: Preprint project: - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment publication: Physical Review Letters publication_status: published publisher: American Physical Society quality_controlled: '1' related_material: link: - description: News on IST Homepage relation: press_release url: https://ist.ac.at/en/news/description-of-rotating-molecules-made-easy/ scopus_import: '1' status: public title: Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 121 year: '2018' ... --- _id: '417' abstract: - lang: eng text: 'We introduce a Diagrammatic Monte Carlo (DiagMC) approach to complex molecular impurities with rotational degrees of freedom interacting with a many-particle environment. The treatment is based on the diagrammatic expansion that merges the usual Feynman diagrams with the angular momentum diagrams known from atomic and nuclear structure theory, thereby incorporating the non-Abelian algebra inherent to quantum rotations. Our approach works at arbitrary coupling, is free of systematic errors and of finite size effects, and naturally provides access to the impurity Green function. We exemplify the technique by obtaining an all-coupling solution of the angulon model, however, the method is quite general and can be applied to a broad variety of quantum impurities possessing angular momentum degrees of freedom. ' article_number: '165301' article_processing_charge: No author: - first_name: Giacomo full_name: Bighin, Giacomo id: 4CA96FD4-F248-11E8-B48F-1D18A9856A87 last_name: Bighin orcid: 0000-0001-8823-9777 - first_name: Timur full_name: Tscherbul, Timur last_name: Tscherbul - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Bighin G, Tscherbul T, Lemeshko M. Diagrammatic Monte Carlo approach to rotating molecular impurities. Physical Review Letters. 2018;121(16). doi:10.1103/PhysRevLett.121.165301 apa: Bighin, G., Tscherbul, T., & Lemeshko, M. (2018). Diagrammatic Monte Carlo approach to rotating molecular impurities. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.121.165301 chicago: Bighin, Giacomo, Timur Tscherbul, and Mikhail Lemeshko. “Diagrammatic Monte Carlo Approach to Rotating Molecular Impurities.” Physical Review Letters. American Physical Society, 2018. https://doi.org/10.1103/PhysRevLett.121.165301. ieee: G. Bighin, T. Tscherbul, and M. Lemeshko, “Diagrammatic Monte Carlo approach to rotating molecular impurities,” Physical Review Letters, vol. 121, no. 16. American Physical Society, 2018. ista: Bighin G, Tscherbul T, Lemeshko M. 2018. Diagrammatic Monte Carlo approach to rotating molecular impurities. Physical Review Letters. 121(16), 165301. mla: Bighin, Giacomo, et al. “Diagrammatic Monte Carlo Approach to Rotating Molecular Impurities.” Physical Review Letters, vol. 121, no. 16, 165301, American Physical Society, 2018, doi:10.1103/PhysRevLett.121.165301. short: G. Bighin, T. Tscherbul, M. Lemeshko, Physical Review Letters 121 (2018). date_created: 2018-12-11T11:46:22Z date_published: 2018-10-16T00:00:00Z date_updated: 2024-02-28T13:14:53Z day: '16' department: - _id: MiLe doi: 10.1103/PhysRevLett.121.165301 external_id: arxiv: - '1803.07990' intvolume: ' 121' issue: '16' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1803.07990 month: '10' oa: 1 oa_version: Preprint project: - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment publication: Physical Review Letters publication_status: published publisher: American Physical Society publist_id: '8025' quality_controlled: '1' scopus_import: '1' status: public title: Diagrammatic Monte Carlo approach to rotating molecular impurities type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 121 year: '2018' ... --- _id: '604' abstract: - lang: eng text: In several settings of physics and chemistry one has to deal with molecules interacting with some kind of an external environment, be it a gas, a solution, or a crystal surface. Understanding molecular processes in the presence of such a many-particle bath is inherently challenging, and usually requires large-scale numerical computations. Here, we present an alternative approach to the problem, based on the notion of the angulon quasiparticle. We show that molecules rotating inside superfluid helium nanodroplets and Bose–Einstein condensates form angulons, and therefore can be described by straightforward solutions of a simple microscopic Hamiltonian. Casting the problem in the language of angulons allows us not only to greatly simplify it, but also to gain insights into the origins of the observed phenomena and to make predictions for future experimental studies. alternative_title: - Theoretical and Computational Chemistry Series author: - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Richard full_name: Schmidt, Richard last_name: Schmidt citation: ama: 'Lemeshko M, Schmidt R. Molecular impurities interacting with a many-particle environment: From ultracold gases to helium nanodroplets. In: Dulieu O, Osterwalder A, eds. Cold Chemistry: Molecular Scattering and Reactivity Near Absolute Zero . Vol 11. Theoretical and Computational Chemistry Series. The Royal Society of Chemistry; 2017:444-495. doi:10.1039/9781782626800-00444' apa: 'Lemeshko, M., & Schmidt, R. (2017). Molecular impurities interacting with a many-particle environment: From ultracold gases to helium nanodroplets. In O. Dulieu & A. Osterwalder (Eds.), Cold Chemistry: Molecular Scattering and Reactivity Near Absolute Zero (Vol. 11, pp. 444–495). The Royal Society of Chemistry. https://doi.org/10.1039/9781782626800-00444' chicago: 'Lemeshko, Mikhail, and Richard Schmidt. “Molecular Impurities Interacting with a Many-Particle Environment: From Ultracold Gases to Helium Nanodroplets.” In Cold Chemistry: Molecular Scattering and Reactivity Near Absolute Zero , edited by Oliver Dulieu and Andreas Osterwalder, 11:444–95. Theoretical and Computational Chemistry Series. The Royal Society of Chemistry, 2017. https://doi.org/10.1039/9781782626800-00444.' ieee: 'M. Lemeshko and R. Schmidt, “Molecular impurities interacting with a many-particle environment: From ultracold gases to helium nanodroplets,” in Cold Chemistry: Molecular Scattering and Reactivity Near Absolute Zero , vol. 11, O. Dulieu and A. Osterwalder, Eds. The Royal Society of Chemistry, 2017, pp. 444–495.' ista: 'Lemeshko M, Schmidt R. 2017.Molecular impurities interacting with a many-particle environment: From ultracold gases to helium nanodroplets. In: Cold Chemistry: Molecular Scattering and Reactivity Near Absolute Zero . Theoretical and Computational Chemistry Series, vol. 11, 444–495.' mla: 'Lemeshko, Mikhail, and Richard Schmidt. “Molecular Impurities Interacting with a Many-Particle Environment: From Ultracold Gases to Helium Nanodroplets.” Cold Chemistry: Molecular Scattering and Reactivity Near Absolute Zero , edited by Oliver Dulieu and Andreas Osterwalder, vol. 11, The Royal Society of Chemistry, 2017, pp. 444–95, doi:10.1039/9781782626800-00444.' short: 'M. Lemeshko, R. Schmidt, in:, O. Dulieu, A. Osterwalder (Eds.), Cold Chemistry: Molecular Scattering and Reactivity Near Absolute Zero , The Royal Society of Chemistry, 2017, pp. 444–495.' date_created: 2018-12-11T11:47:27Z date_published: 2017-12-14T00:00:00Z date_updated: 2021-01-12T08:05:50Z day: '14' department: - _id: MiLe doi: 10.1039/9781782626800-00444 editor: - first_name: Oliver full_name: Dulieu, Oliver last_name: Dulieu - first_name: Andreas full_name: Osterwalder, Andreas last_name: Osterwalder intvolume: ' 11' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1703.06753 month: '12' oa: 1 oa_version: Submitted Version page: 444 - 495 publication: 'Cold Chemistry: Molecular Scattering and Reactivity Near Absolute Zero ' publication_identifier: issn: - '20413181' publication_status: published publisher: The Royal Society of Chemistry publist_id: '7201' quality_controlled: '1' scopus_import: 1 series_title: Theoretical and Computational Chemistry Series status: public title: 'Molecular impurities interacting with a many-particle environment: From ultracold gases to helium nanodroplets' type: book_chapter user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 11 year: '2017' ... --- _id: '1120' abstract: - lang: eng text: 'The existence of a self-localization transition in the polaron problem has been under an active debate ever since Landau suggested it 83 years ago. Here we reveal the self-localization transition for the rotational analogue of the polaron -- the angulon quasiparticle. We show that, unlike for the polarons, self-localization of angulons occurs at finite impurity-bath coupling already at the mean-field level. The transition is accompanied by the spherical-symmetry breaking of the angulon ground state and a discontinuity in the first derivative of the ground-state energy. Moreover, the type of the symmetry breaking is dictated by the symmetry of the microscopic impurity-bath interaction, which leads to a number of distinct self-localized states. The predicted effects can potentially be addressed in experiments on cold molecules trapped in superfluid helium droplets and ultracold quantum gases, as well as on electronic excitations in solids and Bose-Einstein condensates. ' article_number: '033608' article_processing_charge: No author: - first_name: Xiang full_name: Li, Xiang id: 4B7E523C-F248-11E8-B48F-1D18A9856A87 last_name: Li - first_name: Robert full_name: Seiringer, Robert id: 4AFD0470-F248-11E8-B48F-1D18A9856A87 last_name: Seiringer orcid: 0000-0002-6781-0521 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Li X, Seiringer R, Lemeshko M. Angular self-localization of impurities rotating in a bosonic bath. Physical Review A. 2017;95(3). doi:10.1103/PhysRevA.95.033608 apa: Li, X., Seiringer, R., & Lemeshko, M. (2017). Angular self-localization of impurities rotating in a bosonic bath. Physical Review A. American Physical Society. https://doi.org/10.1103/PhysRevA.95.033608 chicago: Li, Xiang, Robert Seiringer, and Mikhail Lemeshko. “Angular Self-Localization of Impurities Rotating in a Bosonic Bath.” Physical Review A. American Physical Society, 2017. https://doi.org/10.1103/PhysRevA.95.033608. ieee: X. Li, R. Seiringer, and M. Lemeshko, “Angular self-localization of impurities rotating in a bosonic bath,” Physical Review A, vol. 95, no. 3. American Physical Society, 2017. ista: Li X, Seiringer R, Lemeshko M. 2017. Angular self-localization of impurities rotating in a bosonic bath. Physical Review A. 95(3), 033608. mla: Li, Xiang, et al. “Angular Self-Localization of Impurities Rotating in a Bosonic Bath.” Physical Review A, vol. 95, no. 3, 033608, American Physical Society, 2017, doi:10.1103/PhysRevA.95.033608. short: X. Li, R. Seiringer, M. Lemeshko, Physical Review A 95 (2017). date_created: 2018-12-11T11:50:15Z date_published: 2017-03-06T00:00:00Z date_updated: 2023-09-20T11:30:58Z day: '06' department: - _id: MiLe - _id: RoSe doi: 10.1103/PhysRevA.95.033608 ec_funded: 1 external_id: isi: - '000395981900009' intvolume: ' 95' isi: 1 issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1610.04908 month: '03' oa: 1 oa_version: Published Version project: - _id: 25C6DC12-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '694227' name: Analysis of quantum many-body systems - _id: 25C878CE-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P27533_N27 name: Structure of the Excitation Spectrum for Many-Body Quantum Systems - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment publication: Physical Review A publication_identifier: issn: - '24699926' publication_status: published publisher: American Physical Society publist_id: '6242' quality_controlled: '1' related_material: record: - id: '8958' relation: dissertation_contains status: public scopus_import: '1' status: public title: Angular self-localization of impurities rotating in a bosonic bath type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 95 year: '2017' ... --- _id: '1133' abstract: - lang: eng text: 'It is a common knowledge that an effective interaction of a quantum impurity with an electromagnetic field can be screened by surrounding charge carriers, whether mobile or static. Here we demonstrate that very strong, "anomalous" screening can take place in the presence of a neutral, weakly polarizable environment, due to an exchange of orbital angular momentum between the impurity and the bath. Furthermore, we show that it is possible to generalize all phenomena related to isolated impurities in an external field to the case when a many-body environment is present, by casting the problem in terms of the angulon quasiparticle. As a result, the relevant observables such as the effective Rabi frequency, geometric phase, and impurity spatial alignment are straightforward to evaluate in terms of a single parameter: the angular-momentum-dependent screening factor.' article_number: '085302' article_processing_charge: No author: - first_name: Enderalp full_name: Yakaboylu, Enderalp id: 38CB71F6-F248-11E8-B48F-1D18A9856A87 last_name: Yakaboylu orcid: 0000-0001-5973-0874 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Yakaboylu E, Lemeshko M. Anomalous screening of quantum impurities by a neutral environment. Physical Review Letters. 2017;118(8). doi:10.1103/PhysRevLett.118.085302 apa: Yakaboylu, E., & Lemeshko, M. (2017). Anomalous screening of quantum impurities by a neutral environment. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.118.085302 chicago: Yakaboylu, Enderalp, and Mikhail Lemeshko. “Anomalous Screening of Quantum Impurities by a Neutral Environment.” Physical Review Letters. American Physical Society, 2017. https://doi.org/10.1103/PhysRevLett.118.085302. ieee: E. Yakaboylu and M. Lemeshko, “Anomalous screening of quantum impurities by a neutral environment,” Physical Review Letters, vol. 118, no. 8. American Physical Society, 2017. ista: Yakaboylu E, Lemeshko M. 2017. Anomalous screening of quantum impurities by a neutral environment. Physical Review Letters. 118(8), 085302. mla: Yakaboylu, Enderalp, and Mikhail Lemeshko. “Anomalous Screening of Quantum Impurities by a Neutral Environment.” Physical Review Letters, vol. 118, no. 8, 085302, American Physical Society, 2017, doi:10.1103/PhysRevLett.118.085302. short: E. Yakaboylu, M. Lemeshko, Physical Review Letters 118 (2017). date_created: 2018-12-11T11:50:19Z date_published: 2017-02-22T00:00:00Z date_updated: 2023-09-20T11:30:08Z day: '22' department: - _id: MiLe doi: 10.1103/PhysRevLett.118.085302 ec_funded: 1 external_id: isi: - '000394667600003' intvolume: ' 118' isi: 1 issue: '8' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1612.02820 month: '02' oa: 1 oa_version: Submitted Version project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment publication: Physical Review Letters publication_identifier: issn: - '00319007' publication_status: published publisher: American Physical Society publist_id: '6225' quality_controlled: '1' scopus_import: '1' status: public title: Anomalous screening of quantum impurities by a neutral environment type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 118 year: '2017' ... --- _id: '1119' abstract: - lang: eng text: Understanding the behavior of molecules interacting with superfluid helium represents a formidable challenge and, in general, requires approaches relying on large-scale numerical simulations. Here we demonstrate that experimental data collected over the last 20 years provide evidence that molecules immersed in superfluid helium form recently-predicted angulon quasiparticles [Phys. Rev. Lett. 114, 203001 (2015)]. Most importantly, casting the many-body problem in terms of angulons amounts to a drastic simplification and yields effective molecular moments of inertia as straightforward analytic solutions of a simple microscopic Hamiltonian. The outcome of the angulon theory is in good agreement with experiment for a broad range of molecular impurities, from heavy to medium-mass to light species. These results pave the way to understanding molecular rotation in liquid and crystalline phases in terms of the angulon quasiparticle. article_number: '095301' article_processing_charge: No author: - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Lemeshko M. Quasiparticle approach to molecules interacting with quantum solvents. Physical Review Letters. 2017;118(9). doi:10.1103/PhysRevLett.118.095301 apa: Lemeshko, M. (2017). Quasiparticle approach to molecules interacting with quantum solvents. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.118.095301 chicago: Lemeshko, Mikhail. “Quasiparticle Approach to Molecules Interacting with Quantum Solvents.” Physical Review Letters. American Physical Society, 2017. https://doi.org/10.1103/PhysRevLett.118.095301. ieee: M. Lemeshko, “Quasiparticle approach to molecules interacting with quantum solvents,” Physical Review Letters, vol. 118, no. 9. American Physical Society, 2017. ista: Lemeshko M. 2017. Quasiparticle approach to molecules interacting with quantum solvents. Physical Review Letters. 118(9), 095301. mla: Lemeshko, Mikhail. “Quasiparticle Approach to Molecules Interacting with Quantum Solvents.” Physical Review Letters, vol. 118, no. 9, 095301, American Physical Society, 2017, doi:10.1103/PhysRevLett.118.095301. short: M. Lemeshko, Physical Review Letters 118 (2017). date_created: 2018-12-11T11:50:15Z date_published: 2017-02-27T00:00:00Z date_updated: 2023-09-20T11:31:22Z day: '27' department: - _id: MiLe doi: 10.1103/PhysRevLett.118.095301 external_id: isi: - '000404769200006' intvolume: ' 118' isi: 1 issue: '9' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1610.01604 month: '02' oa: 1 oa_version: Submitted Version project: - _id: 25636330-B435-11E9-9278-68D0E5697425 grant_number: 11-NSF-1070 name: ROOTS Genome-wide Analysis of Root Traits publication: Physical Review Letters publication_identifier: issn: - '00319007' publication_status: published publisher: American Physical Society publist_id: '6243' quality_controlled: '1' status: public title: Quasiparticle approach to molecules interacting with quantum solvents type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 118 year: '2017' ... --- _id: '1109' abstract: - lang: eng text: 'Rotation of molecules embedded in He nanodroplets is explored by a combination of fs laser-induced alignment experiments and angulon quasiparticle theory. We demonstrate that at low fluence of the fs alignment pulse, the molecule and its solvation shell can be set into coherent collective rotation lasting long enough to form revivals. With increasing fluence, however, the revivals disappear -- instead, rotational dynamics as rapid as for an isolated molecule is observed during the first few picoseconds. Classical calculations trace this phenomenon to transient decoupling of the molecule from its He shell. Our results open novel opportunities for studying non-equilibrium solute-solvent dynamics and quantum thermalization. ' article_number: '203203' article_processing_charge: No author: - first_name: Benjamin full_name: Shepperson, Benjamin last_name: Shepperson - first_name: Anders full_name: Søndergaard, Anders last_name: Søndergaard - first_name: Lars full_name: Christiansen, Lars last_name: Christiansen - first_name: Jan full_name: Kaczmarczyk, Jan id: 46C405DE-F248-11E8-B48F-1D18A9856A87 last_name: Kaczmarczyk orcid: 0000-0002-1629-3675 - first_name: Robert full_name: Zillich, Robert last_name: Zillich - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Henrik full_name: Stapelfeldt, Henrik last_name: Stapelfeldt citation: ama: 'Shepperson B, Søndergaard A, Christiansen L, et al. Laser-induced rotation of iodine molecules in helium nanodroplets: Revivals and breaking-free. Physical Review Letters. 2017;118(20). doi:10.1103/PhysRevLett.118.203203' apa: 'Shepperson, B., Søndergaard, A., Christiansen, L., Kaczmarczyk, J., Zillich, R., Lemeshko, M., & Stapelfeldt, H. (2017). Laser-induced rotation of iodine molecules in helium nanodroplets: Revivals and breaking-free. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.118.203203' chicago: 'Shepperson, Benjamin, Anders Søndergaard, Lars Christiansen, Jan Kaczmarczyk, Robert Zillich, Mikhail Lemeshko, and Henrik Stapelfeldt. “Laser-Induced Rotation of Iodine Molecules in Helium Nanodroplets: Revivals and Breaking-Free.” Physical Review Letters. American Physical Society, 2017. https://doi.org/10.1103/PhysRevLett.118.203203.' ieee: 'B. Shepperson et al., “Laser-induced rotation of iodine molecules in helium nanodroplets: Revivals and breaking-free,” Physical Review Letters, vol. 118, no. 20. American Physical Society, 2017.' ista: 'Shepperson B, Søndergaard A, Christiansen L, Kaczmarczyk J, Zillich R, Lemeshko M, Stapelfeldt H. 2017. Laser-induced rotation of iodine molecules in helium nanodroplets: Revivals and breaking-free. Physical Review Letters. 118(20), 203203.' mla: 'Shepperson, Benjamin, et al. “Laser-Induced Rotation of Iodine Molecules in Helium Nanodroplets: Revivals and Breaking-Free.” Physical Review Letters, vol. 118, no. 20, 203203, American Physical Society, 2017, doi:10.1103/PhysRevLett.118.203203.' short: B. Shepperson, A. Søndergaard, L. Christiansen, J. Kaczmarczyk, R. Zillich, M. Lemeshko, H. Stapelfeldt, Physical Review Letters 118 (2017). date_created: 2018-12-11T11:50:12Z date_published: 2017-05-19T00:00:00Z date_updated: 2023-09-20T11:36:17Z day: '19' department: - _id: MiLe doi: 10.1103/PhysRevLett.118.203203 external_id: isi: - '000401664000005' intvolume: ' 118' isi: 1 issue: '20' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1702.01977 month: '05' oa: 1 oa_version: Preprint project: - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment publication: Physical Review Letters publication_status: published publisher: American Physical Society publist_id: '6260' quality_controlled: '1' scopus_import: '1' status: public title: 'Laser-induced rotation of iodine molecules in helium nanodroplets: Revivals and breaking-free' type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 118 year: '2017' ... --- _id: '995' abstract: - lang: eng text: Recently it was shown that an impurity exchanging orbital angular momentum with a surrounding bath can be described in terms of the angulon quasiparticle [Phys. Rev. Lett. 118, 095301 (2017)]. The angulon consists of a quantum rotor dressed by a many-particle field of boson excitations, and can be formed out of, for example, a molecule or a nonspherical atom in superfluid helium, or out of an electron coupled to lattice phonons or a Bose condensate. Here we develop an approach to the angulon based on the path-integral formalism, which sets the ground for a systematic, perturbative treatment of the angulon problem. The resulting perturbation series can be interpreted in terms of Feynman diagrams, from which, in turn, one can derive a set of diagrammatic rules. These rules extend the machinery of the graphical theory of angular momentum - well known from theoretical atomic spectroscopy - to the case where an environment with an infinite number of degrees of freedom is present. In particular, we show that each diagram can be interpreted as a 'skeleton', which enforces angular momentum conservation, dressed by an additional many-body contribution. This connection between the angulon theory and the graphical theory of angular momentum is particularly important as it allows to systematically and substantially simplify the analytical representation of each diagram. In order to exemplify the technique, we calculate the 1- and 2-loop contributions to the angulon self-energy, the spectral function, and the quasiparticle weight. The diagrammatic theory we develop paves the way to investigate next-to-leading order quantities in a more compact way compared to the variational approaches. article_number: '085410' article_processing_charge: No author: - first_name: Giacomo full_name: Bighin, Giacomo id: 4CA96FD4-F248-11E8-B48F-1D18A9856A87 last_name: Bighin orcid: 0000-0001-8823-9777 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Bighin G, Lemeshko M. Diagrammatic approach to orbital quantum impurities interacting with a many-particle environment. Physical Review B - Condensed Matter and Materials Physics. 2017;96(8). doi:10.1103/PhysRevB.96.085410 apa: Bighin, G., & Lemeshko, M. (2017). Diagrammatic approach to orbital quantum impurities interacting with a many-particle environment. Physical Review B - Condensed Matter and Materials Physics. American Physical Society. https://doi.org/10.1103/PhysRevB.96.085410 chicago: Bighin, Giacomo, and Mikhail Lemeshko. “Diagrammatic Approach to Orbital Quantum Impurities Interacting with a Many-Particle Environment.” Physical Review B - Condensed Matter and Materials Physics. American Physical Society, 2017. https://doi.org/10.1103/PhysRevB.96.085410. ieee: G. Bighin and M. Lemeshko, “Diagrammatic approach to orbital quantum impurities interacting with a many-particle environment,” Physical Review B - Condensed Matter and Materials Physics, vol. 96, no. 8. American Physical Society, 2017. ista: Bighin G, Lemeshko M. 2017. Diagrammatic approach to orbital quantum impurities interacting with a many-particle environment. Physical Review B - Condensed Matter and Materials Physics. 96(8), 085410. mla: Bighin, Giacomo, and Mikhail Lemeshko. “Diagrammatic Approach to Orbital Quantum Impurities Interacting with a Many-Particle Environment.” Physical Review B - Condensed Matter and Materials Physics, vol. 96, no. 8, 085410, American Physical Society, 2017, doi:10.1103/PhysRevB.96.085410. short: G. Bighin, M. Lemeshko, Physical Review B - Condensed Matter and Materials Physics 96 (2017). date_created: 2018-12-11T11:49:36Z date_published: 2017-08-07T00:00:00Z date_updated: 2023-09-22T09:53:17Z day: '07' department: - _id: MiLe doi: 10.1103/PhysRevB.96.085410 external_id: isi: - '000407017100009' intvolume: ' 96' isi: 1 issue: '8' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1704.02616 month: '08' oa: 1 oa_version: Submitted Version project: - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment publication: Physical Review B - Condensed Matter and Materials Physics publication_identifier: issn: - '24699950' publication_status: published publisher: American Physical Society publist_id: '6404' quality_controlled: '1' scopus_import: '1' status: public title: Diagrammatic approach to orbital quantum impurities interacting with a many-particle environment type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 96 year: '2017' ... --- _id: '994' abstract: - lang: eng text: The formation of vortices is usually considered to be the main mechanism of angular momentum disposal in superfluids. Recently, it was predicted that a superfluid can acquire angular momentum via an alternative, microscopic route -- namely, through interaction with rotating impurities, forming so-called `angulon quasiparticles' [Phys. Rev. Lett. 114, 203001 (2015)]. The angulon instabilities correspond to transfer of a small number of angular momentum quanta from the impurity to the superfluid, as opposed to vortex instabilities, where angular momentum is quantized in units of ℏ per atom. Furthermore, since conventional impurities (such as molecules) represent three-dimensional (3D) rotors, the angular momentum transferred is intrinsically 3D as well, as opposed to a merely planar rotation which is inherent to vortices. Herein we show that the angulon theory can explain the anomalous broadening of the spectroscopic lines observed for CH 3 and NH 3 molecules in superfluid helium nanodroplets, thereby providing a fingerprint of the emerging angulon instabilities in experiment. article_processing_charge: No author: - first_name: Igor full_name: Cherepanov, Igor id: 339C7E5A-F248-11E8-B48F-1D18A9856A87 last_name: Cherepanov - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Cherepanov I, Lemeshko M. Fingerprints of angulon instabilities in the spectra of matrix-isolated molecules. Physical Review Materials. 2017;1(3). doi:10.1103/PhysRevMaterials.1.035602 apa: Cherepanov, I., & Lemeshko, M. (2017). Fingerprints of angulon instabilities in the spectra of matrix-isolated molecules. Physical Review Materials. American Physical Society. https://doi.org/10.1103/PhysRevMaterials.1.035602 chicago: Cherepanov, Igor, and Mikhail Lemeshko. “Fingerprints of Angulon Instabilities in the Spectra of Matrix-Isolated Molecules.” Physical Review Materials. American Physical Society, 2017. https://doi.org/10.1103/PhysRevMaterials.1.035602. ieee: I. Cherepanov and M. Lemeshko, “Fingerprints of angulon instabilities in the spectra of matrix-isolated molecules,” Physical Review Materials, vol. 1, no. 3. American Physical Society, 2017. ista: Cherepanov I, Lemeshko M. 2017. Fingerprints of angulon instabilities in the spectra of matrix-isolated molecules. Physical Review Materials. 1(3). mla: Cherepanov, Igor, and Mikhail Lemeshko. “Fingerprints of Angulon Instabilities in the Spectra of Matrix-Isolated Molecules.” Physical Review Materials, vol. 1, no. 3, American Physical Society, 2017, doi:10.1103/PhysRevMaterials.1.035602. short: I. Cherepanov, M. Lemeshko, Physical Review Materials 1 (2017). date_created: 2018-12-11T11:49:35Z date_published: 2017-08-08T00:00:00Z date_updated: 2023-09-22T09:53:42Z day: '08' department: - _id: MiLe doi: 10.1103/PhysRevMaterials.1.035602 ec_funded: 1 external_id: isi: - '000416564000004' intvolume: ' 1' isi: 1 issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1705.09220 month: '08' oa: 1 oa_version: Submitted Version project: - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment - _id: 2564DBCA-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '665385' name: International IST Doctoral Program publication: Physical Review Materials publication_status: published publisher: American Physical Society publist_id: '6405' quality_controlled: '1' scopus_import: '1' status: public title: Fingerprints of angulon instabilities in the spectra of matrix-isolated molecules type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 1 year: '2017' ... --- _id: '997' abstract: - lang: eng text: Recently it was shown that molecules rotating in superfluid helium can be described in terms of the angulon quasiparticles (Phys. Rev. Lett. 118, 095301 (2017)). Here we demonstrate that in the experimentally realized regime the angulon can be seen as a point charge on a 2-sphere interacting with a gauge field of a non-abelian magnetic monopole. Unlike in several other settings, the gauge fields of the angulon problem emerge in the real coordinate space, as opposed to the momentum space or some effective parameter space. Furthermore, we find a topological transition associated with making the monopole abelian, which takes place in the vicinity of the previously reported angulon instabilities. These results pave the way for studying topological phenomena in experiments on molecules trapped in superfluid helium nanodroplets, as well as on other realizations of orbital impurity problems. article_number: '235301' article_processing_charge: No article_type: original author: - first_name: Enderalp full_name: Yakaboylu, Enderalp id: 38CB71F6-F248-11E8-B48F-1D18A9856A87 last_name: Yakaboylu orcid: 0000-0001-5973-0874 - first_name: Andreas full_name: Deuchert, Andreas id: 4DA65CD0-F248-11E8-B48F-1D18A9856A87 last_name: Deuchert orcid: 0000-0003-3146-6746 - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Yakaboylu E, Deuchert A, Lemeshko M. Emergence of non-abelian magnetic monopoles in a quantum impurity problem. Physical Review Letters. 2017;119(23). doi:10.1103/PhysRevLett.119.235301 apa: Yakaboylu, E., Deuchert, A., & Lemeshko, M. (2017). Emergence of non-abelian magnetic monopoles in a quantum impurity problem. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.119.235301 chicago: Yakaboylu, Enderalp, Andreas Deuchert, and Mikhail Lemeshko. “Emergence of Non-Abelian Magnetic Monopoles in a Quantum Impurity Problem.” Physical Review Letters. American Physical Society, 2017. https://doi.org/10.1103/PhysRevLett.119.235301. ieee: E. Yakaboylu, A. Deuchert, and M. Lemeshko, “Emergence of non-abelian magnetic monopoles in a quantum impurity problem,” Physical Review Letters, vol. 119, no. 23. American Physical Society, 2017. ista: Yakaboylu E, Deuchert A, Lemeshko M. 2017. Emergence of non-abelian magnetic monopoles in a quantum impurity problem. Physical Review Letters. 119(23), 235301. mla: Yakaboylu, Enderalp, et al. “Emergence of Non-Abelian Magnetic Monopoles in a Quantum Impurity Problem.” Physical Review Letters, vol. 119, no. 23, 235301, American Physical Society, 2017, doi:10.1103/PhysRevLett.119.235301. short: E. Yakaboylu, A. Deuchert, M. Lemeshko, Physical Review Letters 119 (2017). date_created: 2018-12-11T11:49:36Z date_published: 2017-12-06T00:00:00Z date_updated: 2023-10-10T13:31:54Z day: '06' department: - _id: MiLe - _id: RoSe doi: 10.1103/PhysRevLett.119.235301 ec_funded: 1 external_id: arxiv: - '1705.05162' isi: - '000417132100007' intvolume: ' 119' isi: 1 issue: '23' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1705.05162 month: '12' oa: 1 oa_version: Preprint project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme - _id: 25C6DC12-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '694227' name: Analysis of quantum many-body systems - _id: 26031614-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29902 name: Quantum rotations in the presence of a many-body environment publication: Physical Review Letters publication_identifier: issn: - 0031-9007 publication_status: published publisher: American Physical Society publist_id: '6401' quality_controlled: '1' scopus_import: '1' status: public title: Emergence of non-abelian magnetic monopoles in a quantum impurity problem type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 119 year: '2017' ... --- _id: '996' abstract: - lang: eng text: 'Iodine (I 2 ) molecules embedded in He nanodroplets are aligned by a 160 ps long laser pulse. The highest degree of alignment, occurring at the peak of the pulse and quantified by ⟨cos 2 θ 2D ⟩ , is measured as a function of the laser intensity. The results are well described by ⟨cos 2 θ 2D ⟩ calculated for a gas of isolated molecules each with an effective rotational constant of 0.6 times the gas-phase value, and at a temperature of 0.4 K. Theoretical analysis using the angulon quasiparticle to describe rotating molecules in superfluid helium rationalizes why the alignment mechanism is similar to that of isolated molecules with an effective rotational constant. A major advantage of molecules in He droplets is that their 0.4 K temperature leads to stronger alignment than what can generally be achieved for gas phase molecules -- here demonstrated by a direct comparison of the droplet results to measurements on a ∼ 1 K supersonic beam of isolated molecules. This point is further illustrated for more complex system by measurements on 1,4-diiodobenzene and 1,4-dibromobenzene. For all three molecular species studied the highest values of ⟨cos 2 θ 2D ⟩ achieved in He droplets exceed 0.96. ' article_number: '013946' article_processing_charge: No author: - first_name: Benjamin full_name: Shepperson, Benjamin last_name: Shepperson - first_name: Adam full_name: Chatterley, Adam last_name: Chatterley - first_name: Anders full_name: Søndergaard, Anders last_name: Søndergaard - first_name: Lars full_name: Christiansen, Lars last_name: Christiansen - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Henrik full_name: Stapelfeldt, Henrik last_name: Stapelfeldt citation: ama: Shepperson B, Chatterley A, Søndergaard A, Christiansen L, Lemeshko M, Stapelfeldt H. Strongly aligned molecules inside helium droplets in the near-adiabatic regime. The Journal of Chemical Physics. 2017;147(1). doi:10.1063/1.4983703 apa: Shepperson, B., Chatterley, A., Søndergaard, A., Christiansen, L., Lemeshko, M., & Stapelfeldt, H. (2017). Strongly aligned molecules inside helium droplets in the near-adiabatic regime. The Journal of Chemical Physics. AIP Publishing. https://doi.org/10.1063/1.4983703 chicago: Shepperson, Benjamin, Adam Chatterley, Anders Søndergaard, Lars Christiansen, Mikhail Lemeshko, and Henrik Stapelfeldt. “Strongly Aligned Molecules inside Helium Droplets in the Near-Adiabatic Regime.” The Journal of Chemical Physics. AIP Publishing, 2017. https://doi.org/10.1063/1.4983703. ieee: B. Shepperson, A. Chatterley, A. Søndergaard, L. Christiansen, M. Lemeshko, and H. Stapelfeldt, “Strongly aligned molecules inside helium droplets in the near-adiabatic regime,” The Journal of Chemical Physics, vol. 147, no. 1. AIP Publishing, 2017. ista: Shepperson B, Chatterley A, Søndergaard A, Christiansen L, Lemeshko M, Stapelfeldt H. 2017. Strongly aligned molecules inside helium droplets in the near-adiabatic regime. The Journal of Chemical Physics. 147(1), 013946. mla: Shepperson, Benjamin, et al. “Strongly Aligned Molecules inside Helium Droplets in the Near-Adiabatic Regime.” The Journal of Chemical Physics, vol. 147, no. 1, 013946, AIP Publishing, 2017, doi:10.1063/1.4983703. short: B. Shepperson, A. Chatterley, A. Søndergaard, L. Christiansen, M. Lemeshko, H. Stapelfeldt, The Journal of Chemical Physics 147 (2017). date_created: 2018-12-11T11:49:36Z date_published: 2017-06-01T00:00:00Z date_updated: 2024-02-28T13:02:26Z day: '01' department: - _id: MiLe doi: 10.1063/1.4983703 external_id: isi: - '000405089400047' intvolume: ' 147' isi: 1 issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1704.03684 month: '06' oa: 1 oa_version: Submitted Version publication: The Journal of Chemical Physics publication_identifier: issn: - '00219606' publication_status: published publisher: AIP Publishing publist_id: '6403' quality_controlled: '1' scopus_import: '1' status: public title: Strongly aligned molecules inside helium droplets in the near-adiabatic regime type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 147 year: '2017' ... --- _id: '1204' abstract: - lang: eng text: In science, as in life, "surprises" can be adequately appreciated only in the presence of a null model, what we expect a priori. In physics, theories sometimes express the values of dimensionless physical constants as combinations of mathematical constants like π or e. The inverse problem also arises, whereby the measured value of a physical constant admits a "surprisingly" simple approximation in terms of well-known mathematical constants. Can we estimate the probability for this to be a mere coincidence, rather than an inkling of some theory? We answer the question in the most naive form. author: - first_name: Ariel full_name: Amir, Ariel last_name: Amir - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Tadashi full_name: Tokieda, Tadashi last_name: Tokieda citation: ama: Amir A, Lemeshko M, Tokieda T. Surprises in numerical expressions of physical constants. American Mathematical Monthly. 2016;123(6):609-612. doi:10.4169/amer.math.monthly.123.6.609 apa: Amir, A., Lemeshko, M., & Tokieda, T. (2016). Surprises in numerical expressions of physical constants. American Mathematical Monthly. Mathematical Association of America. https://doi.org/10.4169/amer.math.monthly.123.6.609 chicago: Amir, Ariel, Mikhail Lemeshko, and Tadashi Tokieda. “Surprises in Numerical Expressions of Physical Constants.” American Mathematical Monthly. Mathematical Association of America, 2016. https://doi.org/10.4169/amer.math.monthly.123.6.609. ieee: A. Amir, M. Lemeshko, and T. Tokieda, “Surprises in numerical expressions of physical constants,” American Mathematical Monthly, vol. 123, no. 6. Mathematical Association of America, pp. 609–612, 2016. ista: Amir A, Lemeshko M, Tokieda T. 2016. Surprises in numerical expressions of physical constants. American Mathematical Monthly. 123(6), 609–612. mla: Amir, Ariel, et al. “Surprises in Numerical Expressions of Physical Constants.” American Mathematical Monthly, vol. 123, no. 6, Mathematical Association of America, 2016, pp. 609–12, doi:10.4169/amer.math.monthly.123.6.609. short: A. Amir, M. Lemeshko, T. Tokieda, American Mathematical Monthly 123 (2016) 609–612. date_created: 2018-12-11T11:50:42Z date_published: 2016-06-01T00:00:00Z date_updated: 2021-01-12T06:49:04Z day: '01' department: - _id: MiLe doi: 10.4169/amer.math.monthly.123.6.609 intvolume: ' 123' issue: '6' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1603.00299 month: '06' oa: 1 oa_version: Preprint page: 609 - 612 publication: American Mathematical Monthly publication_status: published publisher: Mathematical Association of America publist_id: '6143' quality_controlled: '1' scopus_import: 1 status: public title: Surprises in numerical expressions of physical constants type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 123 year: '2016' ... --- _id: '1206' abstract: - lang: eng text: We study a polar molecule immersed in a superfluid environment, such as a helium nanodroplet or a Bose–Einstein condensate, in the presence of a strong electrostatic field. We show that coupling of the molecular pendular motion, induced by the field, to the fluctuating bath leads to formation of pendulons—spherical harmonic librators dressed by a field of many-particle excitations. We study the behavior of the pendulon in a broad range of molecule–bath and molecule–field interaction strengths, and reveal that its spectrum features a series of instabilities which are absent in the field-free case of the angulon quasiparticle. Furthermore, we show that an external field allows to fine-tune the positions of these instabilities in the molecular rotational spectrum. This opens the door to detailed experimental studies of redistribution of orbital angular momentum in many-particle systems. © 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim author: - first_name: Elena full_name: Redchenko, Elena id: 2C21D6E8-F248-11E8-B48F-1D18A9856A87 last_name: Redchenko - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Redchenko E, Lemeshko M. Libration of strongly oriented polar molecules inside a superfluid. ChemPhysChem. 2016;17(22):3649-3654. doi:10.1002/cphc.201601042 apa: Redchenko, E., & Lemeshko, M. (2016). Libration of strongly oriented polar molecules inside a superfluid. ChemPhysChem. Wiley-Blackwell. https://doi.org/10.1002/cphc.201601042 chicago: Redchenko, Elena, and Mikhail Lemeshko. “Libration of Strongly Oriented Polar Molecules inside a Superfluid.” ChemPhysChem. Wiley-Blackwell, 2016. https://doi.org/10.1002/cphc.201601042. ieee: E. Redchenko and M. Lemeshko, “Libration of strongly oriented polar molecules inside a superfluid,” ChemPhysChem, vol. 17, no. 22. Wiley-Blackwell, pp. 3649–3654, 2016. ista: Redchenko E, Lemeshko M. 2016. Libration of strongly oriented polar molecules inside a superfluid. ChemPhysChem. 17(22), 3649–3654. mla: Redchenko, Elena, and Mikhail Lemeshko. “Libration of Strongly Oriented Polar Molecules inside a Superfluid.” ChemPhysChem, vol. 17, no. 22, Wiley-Blackwell, 2016, pp. 3649–54, doi:10.1002/cphc.201601042. short: E. Redchenko, M. Lemeshko, ChemPhysChem 17 (2016) 3649–3654. date_created: 2018-12-11T11:50:43Z date_published: 2016-09-18T00:00:00Z date_updated: 2021-01-12T06:49:05Z day: '18' department: - _id: JoFi - _id: MiLe doi: 10.1002/cphc.201601042 ec_funded: 1 intvolume: ' 17' issue: '22' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1609.08161 month: '09' oa: 1 oa_version: Preprint page: 3649 - 3654 project: - _id: 2564DBCA-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '665385' name: International IST Doctoral Program publication: ChemPhysChem publication_status: published publisher: Wiley-Blackwell publist_id: '6140' quality_controlled: '1' scopus_import: 1 status: public title: Libration of strongly oriented polar molecules inside a superfluid type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 17 year: '2016' ... --- _id: '1286' abstract: - lang: eng text: We use recently developed angulon theory [R. Schmidt and M. Lemeshko, Phys. Rev. Lett. 114, 203001 (2015)PRLTAO0031-900710.1103/PhysRevLett.114.203001] to study the rotational spectrum of a cyanide molecular anion immersed into Bose-Einstein condensates of rubidium and strontium. Based on ab initio potential energy surfaces, we provide a detailed study of the rotational Lamb shift and many-body-induced fine structure which arise due to dressing of molecular rotation by a field of phonon excitations. We demonstrate that the magnitude of these effects is large enough in order to be observed in modern experiments on cold molecular ions. Furthermore, we introduce a novel method to construct pseudopotentials starting from the ab initio potential energy surfaces, which provides a means to obtain effective coupling constants for low-energy polaron models. acknowledgement: The work was supported by the NSF through a grant for the Institute for Theoretical Atomic, Molecular, and Optical Physics at Harvard University and the Smithsonian Astrophysical Observatory. B.M. acknowledges financial support received from the People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme (FP7/2007-2013) under REA grant agreement No. 291734. M.T. acknowledges support from the EU Marie Curie COFUND action (ICFOnest), the EU Grants ERC AdG OSYRIS, FP7 SIQS and EQuaM, FETPROACT QUIC, the Spanish Ministry Grants FOQUS (FIS2013-46768-P) and Severo Ochoa (SEV-2015-0522), Generalitat de Catalunya (SGR 874), Fundacio Cellex, the National Science Centre (2015/19/D/ST4/02173), and the PL-Grid Infrastructure. article_number: '041601' author: - first_name: Bikashkali full_name: Midya, Bikashkali id: 456187FC-F248-11E8-B48F-1D18A9856A87 last_name: Midya - first_name: Michał full_name: Tomza, Michał last_name: Tomza - first_name: Richard full_name: Schmidt, Richard last_name: Schmidt - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Midya B, Tomza M, Schmidt R, Lemeshko M. Rotation of cold molecular ions inside a Bose-Einstein condensate. Physical Review A - Atomic, Molecular, and Optical Physics. 2016;94(4). doi:10.1103/PhysRevA.94.041601 apa: Midya, B., Tomza, M., Schmidt, R., & Lemeshko, M. (2016). Rotation of cold molecular ions inside a Bose-Einstein condensate. Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society. https://doi.org/10.1103/PhysRevA.94.041601 chicago: Midya, Bikashkali, Michał Tomza, Richard Schmidt, and Mikhail Lemeshko. “Rotation of Cold Molecular Ions inside a Bose-Einstein Condensate.” Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society, 2016. https://doi.org/10.1103/PhysRevA.94.041601. ieee: B. Midya, M. Tomza, R. Schmidt, and M. Lemeshko, “Rotation of cold molecular ions inside a Bose-Einstein condensate,” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 94, no. 4. American Physical Society, 2016. ista: Midya B, Tomza M, Schmidt R, Lemeshko M. 2016. Rotation of cold molecular ions inside a Bose-Einstein condensate. Physical Review A - Atomic, Molecular, and Optical Physics. 94(4), 041601. mla: Midya, Bikashkali, et al. “Rotation of Cold Molecular Ions inside a Bose-Einstein Condensate.” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 94, no. 4, 041601, American Physical Society, 2016, doi:10.1103/PhysRevA.94.041601. short: B. Midya, M. Tomza, R. Schmidt, M. Lemeshko, Physical Review A - Atomic, Molecular, and Optical Physics 94 (2016). date_created: 2018-12-11T11:51:09Z date_published: 2016-10-13T00:00:00Z date_updated: 2021-01-12T06:49:37Z day: '13' department: - _id: MiLe doi: 10.1103/PhysRevA.94.041601 ec_funded: 1 intvolume: ' 94' issue: '4' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1607.06092 month: '10' oa: 1 oa_version: Preprint project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication: Physical Review A - Atomic, Molecular, and Optical Physics publication_status: published publisher: American Physical Society publist_id: '6030' quality_controlled: '1' scopus_import: 1 status: public title: Rotation of cold molecular ions inside a Bose-Einstein condensate type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 94 year: '2016' ... --- _id: '1343' abstract: - lang: eng text: "The Fermi-Hubbard model is one of the key models of condensed matter physics, which holds a\r\n\r\npotential for explaining the mystery of high-temperature superconductivity. Recent progress in\r\n\r\nultracold atoms in optical lattices has paved the way to studying the model’s phase diagram using\r\n\r\nthe tools of quantum simulation, which emerged as a promising alternative to the numerical\r\n\r\ncalculations plagued by the infamous sign problem. However, the temperatures achieved using\r\n\r\nelaborate laser cooling protocols so far have been too high to show the appearance of\r\n\r\nantiferromagnetic (AF) and superconducting quantum phases directly. In this work, we demonstrate\r\n\r\nthat using the machinery of dissipative quantum state engineering, one can observe the emergence of\r\n\r\nthe AF order in the Fermi-Hubbard model with fermions in optical lattices. The core of the approach\r\n\r\nis to add incoherent laser scattering in such a way that the AF state emerges as the dark state of\r\n\r\nthe driven-dissipative dynamics. The proposed controlled dissipation channels described in this work\r\n\r\nare straightforward to add to already existing experimental setups." acknowledgement: "We acknowledge stimulating discussions with Ken Brown, Tommaso Calarco, Andrew Daley, Suzanne\r\nMcEndoo, Tobias Osborne, Cindy Regal, Luis Santos, Micha\r\nł\r\nTomza, and Martin Zwierlein. The work was supported by the People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme (FP7/2007-2013) under REA grant agreement no. [291734], by the Volkswagen Foundation, and by DFG within SFB 1227 (DQ-mat)." article_number: '093042' author: - first_name: Jan full_name: Kaczmarczyk, Jan id: 46C405DE-F248-11E8-B48F-1D18A9856A87 last_name: Kaczmarczyk orcid: 0000-0002-1629-3675 - first_name: Hendrik full_name: Weimer, Hendrik last_name: Weimer - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Kaczmarczyk J, Weimer H, Lemeshko M. Dissipative preparation of antiferromagnetic order in the Fermi-Hubbard model. New Journal of Physics. 2016;18(9). doi:10.1088/1367-2630/18/9/093042 apa: Kaczmarczyk, J., Weimer, H., & Lemeshko, M. (2016). Dissipative preparation of antiferromagnetic order in the Fermi-Hubbard model. New Journal of Physics. IOP Publishing Ltd. https://doi.org/10.1088/1367-2630/18/9/093042 chicago: Kaczmarczyk, Jan, Hendrik Weimer, and Mikhail Lemeshko. “Dissipative Preparation of Antiferromagnetic Order in the Fermi-Hubbard Model.” New Journal of Physics. IOP Publishing Ltd., 2016. https://doi.org/10.1088/1367-2630/18/9/093042. ieee: J. Kaczmarczyk, H. Weimer, and M. Lemeshko, “Dissipative preparation of antiferromagnetic order in the Fermi-Hubbard model,” New Journal of Physics, vol. 18, no. 9. IOP Publishing Ltd., 2016. ista: Kaczmarczyk J, Weimer H, Lemeshko M. 2016. Dissipative preparation of antiferromagnetic order in the Fermi-Hubbard model. New Journal of Physics. 18(9), 093042. mla: Kaczmarczyk, Jan, et al. “Dissipative Preparation of Antiferromagnetic Order in the Fermi-Hubbard Model.” New Journal of Physics, vol. 18, no. 9, 093042, IOP Publishing Ltd., 2016, doi:10.1088/1367-2630/18/9/093042. short: J. Kaczmarczyk, H. Weimer, M. Lemeshko, New Journal of Physics 18 (2016). date_created: 2018-12-11T11:51:29Z date_published: 2016-09-22T00:00:00Z date_updated: 2021-01-12T06:50:01Z day: '22' ddc: - '530' department: - _id: MiLe doi: 10.1088/1367-2630/18/9/093042 ec_funded: 1 file: - access_level: open_access checksum: 2a43e235222755e31ffbd369882c61de content_type: application/pdf creator: system date_created: 2018-12-12T10:17:52Z date_updated: 2020-07-14T12:44:45Z file_id: '5309' file_name: IST-2016-655-v1+1_njp_18_9_093042.pdf file_size: 1076029 relation: main_file file_date_updated: 2020-07-14T12:44:45Z has_accepted_license: '1' intvolume: ' 18' issue: '9' language: - iso: eng month: '09' oa: 1 oa_version: Published Version project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication: New Journal of Physics publication_status: published publisher: IOP Publishing Ltd. publist_id: '5909' pubrep_id: '655' quality_controlled: '1' scopus_import: 1 status: public title: Dissipative preparation of antiferromagnetic order in the Fermi-Hubbard model tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 18 year: '2016' ... --- _id: '1347' abstract: - lang: eng text: 'During the past 70 years, the quantum theory of angular momentum has been successfully applied to describing the properties of nuclei, atoms, and molecules, and their interactions with each other as well as with external fields. Because of the properties of quantum rotations, the angular-momentum algebra can be of tremendous complexity even for a few interacting particles, such as valence electrons of an atom, not to mention larger many-particle systems. In this work, we study an example of the latter: A rotating quantum impurity coupled to a many-body bosonic bath. In the regime of strong impurity-bath couplings, the problem involves the addition of an infinite number of angular momenta, which renders it intractable using currently available techniques. Here, we introduce a novel canonical transformation that allows us to eliminate the complex angular-momentum algebra from such a class of many-body problems. In addition, the transformation exposes the problem''s constants of motion, and renders it solvable exactly in the limit of a slowly rotating impurity. We exemplify the technique by showing that there exists a critical rotational speed at which the impurity suddenly acquires one quantum of angular momentum from the many-particle bath. Such an instability is accompanied by the deformation of the phonon density in the frame rotating along with the impurity.' acknowledgement: We are grateful to Eugene Demler, Jan Kaczmarczyk, Laleh Safari, and Hendrik Weimer for insightful discussions. The work was supported by the NSF through a grant for the Institute for Theoretical Atomic, Molecular, and Optical Physics at Harvard University and Smithsonian Astrophysical Observatory. article_number: '011012' author: - first_name: Richard full_name: Schmidt, Richard last_name: Schmidt - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Schmidt R, Lemeshko M. Deformation of a quantum many-particle system by a rotating impurity. Physical Review X. 2016;6(1). doi:10.1103/PhysRevX.6.011012 apa: Schmidt, R., & Lemeshko, M. (2016). Deformation of a quantum many-particle system by a rotating impurity. Physical Review X. American Physical Society. https://doi.org/10.1103/PhysRevX.6.011012 chicago: Schmidt, Richard, and Mikhail Lemeshko. “Deformation of a Quantum Many-Particle System by a Rotating Impurity.” Physical Review X. American Physical Society, 2016. https://doi.org/10.1103/PhysRevX.6.011012. ieee: R. Schmidt and M. Lemeshko, “Deformation of a quantum many-particle system by a rotating impurity,” Physical Review X, vol. 6, no. 1. American Physical Society, 2016. ista: Schmidt R, Lemeshko M. 2016. Deformation of a quantum many-particle system by a rotating impurity. Physical Review X. 6(1), 011012. mla: Schmidt, Richard, and Mikhail Lemeshko. “Deformation of a Quantum Many-Particle System by a Rotating Impurity.” Physical Review X, vol. 6, no. 1, 011012, American Physical Society, 2016, doi:10.1103/PhysRevX.6.011012. short: R. Schmidt, M. Lemeshko, Physical Review X 6 (2016). date_created: 2018-12-11T11:51:30Z date_published: 2016-01-01T00:00:00Z date_updated: 2021-01-12T06:50:03Z day: '01' ddc: - '530' department: - _id: MiLe doi: 10.1103/PhysRevX.6.011012 file: - access_level: open_access checksum: 6757a164d3c38905e05b2b5a188cb8ff content_type: application/pdf creator: system date_created: 2018-12-12T10:15:59Z date_updated: 2020-07-14T12:44:45Z file_id: '5183' file_name: IST-2016-652-v1+1_PhysRevX.6.011012.pdf file_size: 1165869 relation: main_file file_date_updated: 2020-07-14T12:44:45Z has_accepted_license: '1' intvolume: ' 6' issue: '1' language: - iso: eng month: '01' oa: 1 oa_version: Published Version publication: Physical Review X publication_status: published publisher: American Physical Society publist_id: '5902' pubrep_id: '652' quality_controlled: '1' scopus_import: 1 status: public title: Deformation of a quantum many-particle system by a rotating impurity tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 6 year: '2016' ... --- _id: '1416' abstract: - lang: eng text: Anisotropic dipole-dipole interactions between ultracold dipolar fermions break the symmetry of the Fermi surface and thereby deform it. Here we demonstrate that such a Fermi surface deformation induces a topological phase transition - the so-called Lifshitz transition - in the regime accessible to present-day experiments. We describe the impact of the Lifshitz transition on observable quantities such as the Fermi surface topology, the density-density correlation function, and the excitation spectrum of the system. The Lifshitz transition in ultracold atoms can be controlled by tuning the dipole orientation and, in contrast to the transition studied in crystalline solids, is completely interaction driven. article_number: '195145' author: - first_name: Erik full_name: Van Loon, Erik last_name: Van Loon - first_name: Mikhail full_name: Katsnelson, Mikhail last_name: Katsnelson - first_name: Lauriane full_name: Chomaz, Lauriane last_name: Chomaz - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Van Loon E, Katsnelson M, Chomaz L, Lemeshko M. Interaction-driven Lifshitz transition with dipolar fermions in optical lattices. Physical Review B - Condensed Matter and Materials Physics. 2016;93(19). doi:10.1103/PhysRevB.93.195145 apa: Van Loon, E., Katsnelson, M., Chomaz, L., & Lemeshko, M. (2016). Interaction-driven Lifshitz transition with dipolar fermions in optical lattices. Physical Review B - Condensed Matter and Materials Physics. American Physical Society. https://doi.org/10.1103/PhysRevB.93.195145 chicago: Van Loon, Erik, Mikhail Katsnelson, Lauriane Chomaz, and Mikhail Lemeshko. “Interaction-Driven Lifshitz Transition with Dipolar Fermions in Optical Lattices.” Physical Review B - Condensed Matter and Materials Physics. American Physical Society, 2016. https://doi.org/10.1103/PhysRevB.93.195145. ieee: E. Van Loon, M. Katsnelson, L. Chomaz, and M. Lemeshko, “Interaction-driven Lifshitz transition with dipolar fermions in optical lattices,” Physical Review B - Condensed Matter and Materials Physics, vol. 93, no. 19. American Physical Society, 2016. ista: Van Loon E, Katsnelson M, Chomaz L, Lemeshko M. 2016. Interaction-driven Lifshitz transition with dipolar fermions in optical lattices. Physical Review B - Condensed Matter and Materials Physics. 93(19), 195145. mla: Van Loon, Erik, et al. “Interaction-Driven Lifshitz Transition with Dipolar Fermions in Optical Lattices.” Physical Review B - Condensed Matter and Materials Physics, vol. 93, no. 19, 195145, American Physical Society, 2016, doi:10.1103/PhysRevB.93.195145. short: E. Van Loon, M. Katsnelson, L. Chomaz, M. Lemeshko, Physical Review B - Condensed Matter and Materials Physics 93 (2016). date_created: 2018-12-11T11:51:54Z date_published: 2016-05-15T00:00:00Z date_updated: 2021-01-12T06:50:36Z day: '15' department: - _id: MiLe doi: 10.1103/PhysRevB.93.195145 intvolume: ' 93' issue: '19' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1603.09358 month: '05' oa: 1 oa_version: Preprint publication: Physical Review B - Condensed Matter and Materials Physics publication_status: published publisher: American Physical Society publist_id: '5791' quality_controlled: '1' scopus_import: 1 status: public title: Interaction-driven Lifshitz transition with dipolar fermions in optical lattices type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 93 year: '2016' ... --- _id: '1700' abstract: - lang: eng text: We use the dual boson approach to reveal the phase diagram of the Fermi-Hubbard model with long-range dipole-dipole interactions. By using a large-scale finite-temperature calculation on a 64×64 square lattice we demonstrate the existence of a novel phase, possessing an "ultralong-range" order. The fingerprint of this phase - the density correlation function - features a nontrivial behavior on a scale of tens of lattice sites. We study the properties and the stability of the ultralong-range-ordered phase, and show that it is accessible in modern experiments with ultracold polar molecules and magnetic atoms. acknowledgement: The work is supported by European Research Council (ERC) Advanced Grant No. 338957 FEMTO/NANO. article_number: '081106' author: - first_name: Erik full_name: Van Loon, Erik last_name: Van Loon - first_name: Mikhail full_name: Katsnelson, Mikhail last_name: Katsnelson - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Van Loon E, Katsnelson M, Lemeshko M. Ultralong-range order in the Fermi-Hubbard model with long-range interactions. Physical Review B. 2015;92(8). doi:10.1103/PhysRevB.92.081106 apa: Van Loon, E., Katsnelson, M., & Lemeshko, M. (2015). Ultralong-range order in the Fermi-Hubbard model with long-range interactions. Physical Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.92.081106 chicago: Van Loon, Erik, Mikhail Katsnelson, and Mikhail Lemeshko. “Ultralong-Range Order in the Fermi-Hubbard Model with Long-Range Interactions.” Physical Review B. American Physical Society, 2015. https://doi.org/10.1103/PhysRevB.92.081106. ieee: E. Van Loon, M. Katsnelson, and M. Lemeshko, “Ultralong-range order in the Fermi-Hubbard model with long-range interactions,” Physical Review B, vol. 92, no. 8. American Physical Society, 2015. ista: Van Loon E, Katsnelson M, Lemeshko M. 2015. Ultralong-range order in the Fermi-Hubbard model with long-range interactions. Physical Review B. 92(8), 081106. mla: Van Loon, Erik, et al. “Ultralong-Range Order in the Fermi-Hubbard Model with Long-Range Interactions.” Physical Review B, vol. 92, no. 8, 081106, American Physical Society, 2015, doi:10.1103/PhysRevB.92.081106. short: E. Van Loon, M. Katsnelson, M. Lemeshko, Physical Review B 92 (2015). date_created: 2018-12-11T11:53:32Z date_published: 2015-08-10T00:00:00Z date_updated: 2021-01-12T06:52:37Z day: '10' department: - _id: MiLe doi: 10.1103/PhysRevB.92.081106 intvolume: ' 92' issue: '8' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1506.06007 month: '08' oa: 1 oa_version: Preprint publication: Physical Review B publication_status: published publisher: American Physical Society publist_id: '5441' scopus_import: 1 status: public title: Ultralong-range order in the Fermi-Hubbard model with long-range interactions type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 92 year: '2015' ... --- _id: '1812' abstract: - lang: eng text: "We investigate the occurrence of rotons in a quadrupolar Bose–Einstein condensate confined to two dimensions. Depending on the particle density, the ratio of the contact and quadrupole–quadrupole interactions, and the alignment of the quadrupole moments with respect to the confinement plane, the dispersion relation features two or four point-like roton minima or one ring-shaped minimum. We map out the entire parameter space of the roton behavior and identify the instability regions. We propose to observe the exotic rotons by monitoring the characteristic density wave dynamics resulting from a short local perturbation, and discuss the possibilities to detect the predicted effects in state-of-the-art experiments with ultracold homonuclear molecules.\r\n" article_number: '045005' article_processing_charge: No author: - first_name: Martin full_name: Lahrz, Martin last_name: Lahrz - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Ludwig full_name: Mathey, Ludwig last_name: Mathey citation: ama: Lahrz M, Lemeshko M, Mathey L. Exotic roton excitations in quadrupolar Bose–Einstein condensates . New Journal of Physics. 2015;17(4). doi:10.1088/1367-2630/17/4/045005 apa: Lahrz, M., Lemeshko, M., & Mathey, L. (2015). Exotic roton excitations in quadrupolar Bose–Einstein condensates . New Journal of Physics. IOP Publishing Ltd. https://doi.org/10.1088/1367-2630/17/4/045005 chicago: Lahrz, Martin, Mikhail Lemeshko, and Ludwig Mathey. “Exotic Roton Excitations in Quadrupolar Bose–Einstein Condensates .” New Journal of Physics. IOP Publishing Ltd., 2015. https://doi.org/10.1088/1367-2630/17/4/045005. ieee: M. Lahrz, M. Lemeshko, and L. Mathey, “Exotic roton excitations in quadrupolar Bose–Einstein condensates ,” New Journal of Physics, vol. 17, no. 4. IOP Publishing Ltd., 2015. ista: Lahrz M, Lemeshko M, Mathey L. 2015. Exotic roton excitations in quadrupolar Bose–Einstein condensates . New Journal of Physics. 17(4), 045005. mla: Lahrz, Martin, et al. “Exotic Roton Excitations in Quadrupolar Bose–Einstein Condensates .” New Journal of Physics, vol. 17, no. 4, 045005, IOP Publishing Ltd., 2015, doi:10.1088/1367-2630/17/4/045005. short: M. Lahrz, M. Lemeshko, L. Mathey, New Journal of Physics 17 (2015). date_created: 2018-12-11T11:54:09Z date_published: 2015-04-01T00:00:00Z date_updated: 2021-01-12T06:53:22Z day: '01' ddc: - '530' department: - _id: MiLe doi: 10.1088/1367-2630/17/4/045005 file: - access_level: open_access checksum: 551f751a75b39b89a1db2f7f498f9a49 content_type: application/pdf creator: system date_created: 2018-12-12T10:15:59Z date_updated: 2020-07-14T12:45:17Z file_id: '5184' file_name: IST-2016-446-v1+1_document.pdf file_size: 1900925 relation: main_file file_date_updated: 2020-07-14T12:45:17Z has_accepted_license: '1' intvolume: ' 17' issue: '4' language: - iso: eng month: '04' oa: 1 oa_version: Published Version publication: New Journal of Physics publication_status: published publisher: IOP Publishing Ltd. publist_id: '5294' pubrep_id: '446' quality_controlled: '1' scopus_import: 1 status: public title: 'Exotic roton excitations in quadrupolar Bose–Einstein condensates ' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 17 year: '2015' ... --- _id: '1813' abstract: - lang: eng text: We develop a microscopic theory describing a quantum impurity whose rotational degree of freedom is coupled to a many-particle bath. We approach the problem by introducing the concept of an “angulon”—a quantum rotor dressed by a quantum field—and reveal its quasiparticle properties using a combination of variational and diagrammatic techniques. Our theory predicts renormalization of the impurity rotational structure, such as that observed in experiments with molecules in superfluid helium droplets, in terms of a rotational Lamb shift induced by the many-particle environment. Furthermore, we discover a rich many-body-induced fine structure, emerging in rotational spectra due to a redistribution of angular momentum within the quantum many-body system. article_number: '203001' author: - first_name: Richard full_name: Schmidt, Richard last_name: Schmidt - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Schmidt R, Lemeshko M. Rotation of quantum impurities in the presence of a many-body environment. Physical Review Letters. 2015;114(20). doi:10.1103/PhysRevLett.114.203001 apa: Schmidt, R., & Lemeshko, M. (2015). Rotation of quantum impurities in the presence of a many-body environment. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.114.203001 chicago: Schmidt, Richard, and Mikhail Lemeshko. “Rotation of Quantum Impurities in the Presence of a Many-Body Environment.” Physical Review Letters. American Physical Society, 2015. https://doi.org/10.1103/PhysRevLett.114.203001. ieee: R. Schmidt and M. Lemeshko, “Rotation of quantum impurities in the presence of a many-body environment,” Physical Review Letters, vol. 114, no. 20. American Physical Society, 2015. ista: Schmidt R, Lemeshko M. 2015. Rotation of quantum impurities in the presence of a many-body environment. Physical Review Letters. 114(20), 203001. mla: Schmidt, Richard, and Mikhail Lemeshko. “Rotation of Quantum Impurities in the Presence of a Many-Body Environment.” Physical Review Letters, vol. 114, no. 20, 203001, American Physical Society, 2015, doi:10.1103/PhysRevLett.114.203001. short: R. Schmidt, M. Lemeshko, Physical Review Letters 114 (2015). date_created: 2018-12-11T11:54:09Z date_published: 2015-05-18T00:00:00Z date_updated: 2021-01-12T06:53:22Z day: '18' department: - _id: MiLe doi: 10.1103/PhysRevLett.114.203001 intvolume: ' 114' issue: '20' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1502.03447 month: '05' oa: 1 oa_version: Preprint publication: Physical Review Letters publication_status: published publisher: American Physical Society publist_id: '5293' quality_controlled: '1' scopus_import: 1 status: public title: Rotation of quantum impurities in the presence of a many-body environment type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 114 year: '2015' ... --- _id: '2140' abstract: - lang: eng text: We propose a technique for engineering momentum-dependent dissipation in Bose-Einstein condensates with non-local interactions. The scheme relies on the use of momentum-dependent dark-states in close analogy to velocity-selective coherent population trapping. During the short-time dissipative dynamics, the system is driven into a particular finite-momentum phonon mode, which in real space corresponds to an ordered structure with non-local density-density correlations. Dissipation-induced ordering can be observed and studied in present-day experiments using cold atoms with dipole-dipole or off-resonant Rydberg interactions. Due to its dissipative nature, the ordering does not require artificial breaking of translational symmetry by an opticallattice or harmonic trap. This opens up a perspective of direct cooling of quantum gases into strongly-interacting phases. acknowledgement: This work was supported by NSF through a grant for the Institute for Theoretical Atomic, Molecular, and Optical Physics at Harvard University and Smithsonian Astrophysical Observatory as well as the Harvard Quantum Optics Center. article_number: '070401' author: - first_name: Johannes full_name: Otterbach, Johannes last_name: Otterbach - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Otterbach J, Lemeshko M. Dissipative preparation of spatial order in Rydberg-dressed Bose-Einstein condensates. Physical Review Letters. 2014;113(7). doi:10.1103/PhysRevLett.113.070401 apa: Otterbach, J., & Lemeshko, M. (2014). Dissipative preparation of spatial order in Rydberg-dressed Bose-Einstein condensates. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.113.070401 chicago: Otterbach, Johannes, and Mikhail Lemeshko. “Dissipative Preparation of Spatial Order in Rydberg-Dressed Bose-Einstein Condensates.” Physical Review Letters. American Physical Society, 2014. https://doi.org/10.1103/PhysRevLett.113.070401. ieee: J. Otterbach and M. Lemeshko, “Dissipative preparation of spatial order in Rydberg-dressed Bose-Einstein condensates,” Physical Review Letters, vol. 113, no. 7. American Physical Society, 2014. ista: Otterbach J, Lemeshko M. 2014. Dissipative preparation of spatial order in Rydberg-dressed Bose-Einstein condensates. Physical Review Letters. 113(7), 070401. mla: Otterbach, Johannes, and Mikhail Lemeshko. “Dissipative Preparation of Spatial Order in Rydberg-Dressed Bose-Einstein Condensates.” Physical Review Letters, vol. 113, no. 7, 070401, American Physical Society, 2014, doi:10.1103/PhysRevLett.113.070401. short: J. Otterbach, M. Lemeshko, Physical Review Letters 113 (2014). date_created: 2018-12-11T11:55:56Z date_published: 2014-08-11T00:00:00Z date_updated: 2021-01-12T06:55:33Z day: '11' doi: 10.1103/PhysRevLett.113.070401 extern: '1' intvolume: ' 113' issue: '7' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1308.5905 month: '08' oa: 1 oa_version: Submitted Version publication: Physical Review Letters publication_status: published publisher: American Physical Society publist_id: '4884' status: public title: Dissipative preparation of spatial order in Rydberg-dressed Bose-Einstein condensates type: journal_article user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 113 year: '2014' ... --- _id: '2208' abstract: - lang: eng text: 'We propose to detect quadrupole interactions of neutral ultracold atoms via their induced mean-field shift. We consider a Mott insulator state of spin-polarized atoms in a two-dimensional optical square lattice. The quadrupole moments of the atoms are aligned by an external magnetic field. As the alignment angle is varied, the mean-field shift shows a characteristic angular dependence, which constitutes the defining signature of the quadrupole interaction. For the 3P2 states of Yb and Sr atoms, we find a frequency shift of the order of tens of Hertz, which can be realistically detected in experiment with current technology. We compare our results to the mean-field shift of a spin-polarized quasi-two-dimensional Fermi gas in continuum. ' article_number: '043616' author: - first_name: Martin full_name: Lahrz, Martin last_name: Lahrz - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Klaus full_name: Sengstock, Klaus last_name: Sengstock - first_name: Christoph full_name: Becker, Christoph last_name: Becker - first_name: Ludwig full_name: Mathey, Ludwig last_name: Mathey citation: ama: Lahrz M, Lemeshko M, Sengstock K, Becker C, Mathey L. Detecting quadrupole interactions in ultracold Fermi gases. Physical Review A - Atomic, Molecular, and Optical Physics. 2014;89(4). doi:10.1103/PhysRevA.89.043616 apa: Lahrz, M., Lemeshko, M., Sengstock, K., Becker, C., & Mathey, L. (2014). Detecting quadrupole interactions in ultracold Fermi gases. Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society. https://doi.org/10.1103/PhysRevA.89.043616 chicago: Lahrz, Martin, Mikhail Lemeshko, Klaus Sengstock, Christoph Becker, and Ludwig Mathey. “Detecting Quadrupole Interactions in Ultracold Fermi Gases.” Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society, 2014. https://doi.org/10.1103/PhysRevA.89.043616. ieee: M. Lahrz, M. Lemeshko, K. Sengstock, C. Becker, and L. Mathey, “Detecting quadrupole interactions in ultracold Fermi gases,” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 89, no. 4. American Physical Society, 2014. ista: Lahrz M, Lemeshko M, Sengstock K, Becker C, Mathey L. 2014. Detecting quadrupole interactions in ultracold Fermi gases. Physical Review A - Atomic, Molecular, and Optical Physics. 89(4), 043616. mla: Lahrz, Martin, et al. “Detecting Quadrupole Interactions in Ultracold Fermi Gases.” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 89, no. 4, 043616, American Physical Society, 2014, doi:10.1103/PhysRevA.89.043616. short: M. Lahrz, M. Lemeshko, K. Sengstock, C. Becker, L. Mathey, Physical Review A - Atomic, Molecular, and Optical Physics 89 (2014). date_created: 2018-12-11T11:56:20Z date_published: 2014-04-23T00:00:00Z date_updated: 2021-01-12T06:55:59Z day: '23' doi: 10.1103/PhysRevA.89.043616 extern: '1' intvolume: ' 89' issue: '4' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1402.0873 month: '04' oa: 1 oa_version: Submitted Version publication: Physical Review A - Atomic, Molecular, and Optical Physics publication_status: published publisher: American Physical Society publist_id: '4764' quality_controlled: '1' status: public title: Detecting quadrupole interactions in ultracold Fermi gases type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 89 year: '2014' ... --- _id: '2139' abstract: - lang: eng text: Recently it has been shown that pairs of atoms can form metastable bonds due to non-conservative forces induced by dissipation [Lemeshko&Weimer, Nature Comm. 4, 2230 (2013)]. Here we study the dynamics of interaction-induced coherent population trapping - the process responsible for the formation of dissipatively bound molecules. We derive the effective dissipative potentials induced between ultracold atoms by laser light, and study the time evolution of the scattering states. We demonstrate that binding occurs on short timescales of ~10 microseconds, even if the initial kinetic energy of the atoms significantly exceeds the depth of the dissipative potential. Dissipatively-bound molecules with preordained bond lengths and vibrational wavefunctions can be created and detected in current experiments with ultracold atoms. acknowledgement: The work was supported by the NSF through a grant for the Institute for Theoretical Atomic, Molecular, and Optical Physics at Harvard University and Smithsonian Astrophysical Observatory author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Lemeshko M. Manipulating scattering of ultracold atoms with light-induced dissipation. Frontiers Physics. 2013;1(17). doi:10.3389/fphy.2013.00017 apa: Lemeshko, M. (2013). Manipulating scattering of ultracold atoms with light-induced dissipation. Frontiers Physics. Frontiers Media. https://doi.org/10.3389/fphy.2013.00017 chicago: Lemeshko, Mikhail. “Manipulating Scattering of Ultracold Atoms with Light-Induced Dissipation.” Frontiers Physics. Frontiers Media, 2013. https://doi.org/10.3389/fphy.2013.00017. ieee: M. Lemeshko, “Manipulating scattering of ultracold atoms with light-induced dissipation,” Frontiers Physics, vol. 1, no. 17. Frontiers Media, 2013. ista: Lemeshko M. 2013. Manipulating scattering of ultracold atoms with light-induced dissipation. Frontiers Physics. 1(17). mla: Lemeshko, Mikhail. “Manipulating Scattering of Ultracold Atoms with Light-Induced Dissipation.” Frontiers Physics, vol. 1, no. 17, Frontiers Media, 2013, doi:10.3389/fphy.2013.00017. short: M. Lemeshko, Frontiers Physics 1 (2013). date_created: 2018-12-11T11:55:56Z date_published: 2013-10-07T00:00:00Z date_updated: 2021-01-12T06:55:32Z day: '07' doi: 10.3389/fphy.2013.00017 extern: 1 intvolume: ' 1' issue: '17' main_file_link: - open_access: '1' url: http://arxiv.org/abs/1307.8129 month: '10' oa: 1 publication: Frontiers Physics publication_status: published publisher: Frontiers Media publist_id: '4885' quality_controlled: 0 status: public title: Manipulating scattering of ultracold atoms with light-induced dissipation type: journal_article volume: 1 year: '2013' ... --- _id: '2204' abstract: - lang: eng text: We introduce a new platform for quantum simulation of many-body systems based on nonspherical atoms or molecules with zero dipole moments but possessing a significant value of electric quadrupole moments. We consider a quadrupolar Fermi gas trapped in a 2D square optical lattice, and show that the peculiar symmetry and broad tunability of the quadrupole-quadrupole interaction results in a rich phase diagram encompassing unconventional BCS and charge density wave phases, and opens up a perspective to create a topological superfluid. Quadrupolar species, such as metastable alkaline-earth atoms and homonuclear molecules, are stable against chemical reactions and collapse and are readily available in experiment at high densities. article_processing_charge: No author: - first_name: Satyan full_name: Bhongale, Satyan last_name: Bhongale - first_name: Ludwig full_name: Mathey, Ludwig last_name: Mathey - first_name: Erhai full_name: Zhao, Erhai last_name: Zhao - first_name: Susanne full_name: Yelin, Susanne last_name: Yelin - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Bhongale S, Mathey L, Zhao E, Yelin S, Lemeshko M. Quantum phases of quadrupolar fermi gases in optical lattices. Physical Review Letters. 2013;110(15). doi:10.1103/PhysRevLett.110.155301 apa: Bhongale, S., Mathey, L., Zhao, E., Yelin, S., & Lemeshko, M. (2013). Quantum phases of quadrupolar fermi gases in optical lattices. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.110.155301 chicago: Bhongale, Satyan, Ludwig Mathey, Erhai Zhao, Susanne Yelin, and Mikhail Lemeshko. “Quantum Phases of Quadrupolar Fermi Gases in Optical Lattices.” Physical Review Letters. American Physical Society, 2013. https://doi.org/10.1103/PhysRevLett.110.155301. ieee: S. Bhongale, L. Mathey, E. Zhao, S. Yelin, and M. Lemeshko, “Quantum phases of quadrupolar fermi gases in optical lattices,” Physical Review Letters, vol. 110, no. 15. American Physical Society, 2013. ista: Bhongale S, Mathey L, Zhao E, Yelin S, Lemeshko M. 2013. Quantum phases of quadrupolar fermi gases in optical lattices. Physical Review Letters. 110(15). mla: Bhongale, Satyan, et al. “Quantum Phases of Quadrupolar Fermi Gases in Optical Lattices.” Physical Review Letters, vol. 110, no. 15, American Physical Society, 2013, doi:10.1103/PhysRevLett.110.155301. short: S. Bhongale, L. Mathey, E. Zhao, S. Yelin, M. Lemeshko, Physical Review Letters 110 (2013). date_created: 2018-12-11T11:56:18Z date_published: 2013-04-08T00:00:00Z date_updated: 2021-11-16T08:04:06Z day: '08' doi: 10.1103/PhysRevLett.110.155301 extern: '1' intvolume: ' 110' issue: '15' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1211.3317 month: '04' oa: 1 oa_version: None publication: Physical Review Letters publication_status: published publisher: American Physical Society publist_id: '4769' related_material: link: - relation: erratum url: https://doi.org/10.1103/PhysRevLett.111.239901 status: public title: Quantum phases of quadrupolar fermi gases in optical lattices type: journal_article user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9 volume: 110 year: '2013' ... --- _id: '2206' abstract: - lang: eng text: Magnetic impurities embedded in inert solids can exhibit long coherence times and interact with one another via their intrinsic anisotropic dipolar interaction. We argue that, as a consequence of these properties, disordered ensembles of magnetic impurities provide an effective platform for realizing a controllable, tunable version of the dipolar quantum spin glass seen in LiHoxY1-xF4. Specifically, we propose and analyze a system composed of dysprosium atoms embedded in solid helium. We describe the phase diagram of the system and discuss the realizability and detectability of the quantum spin glass and antiglass phases. author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Norman full_name: Yao, Norman Y last_name: Yao - first_name: Alexey full_name: Gorshkov, Alexey V last_name: Gorshkov - first_name: Hendrik full_name: Weimer, Hendrik last_name: Weimer - first_name: Steven full_name: Bennett, Steven D last_name: Bennett - first_name: Takamasa full_name: Momose, Takamasa last_name: Momose - first_name: Sarang full_name: Gopalakrishnan, Sarang last_name: Gopalakrishnan citation: ama: Lemeshko M, Yao N, Gorshkov A, et al. Controllable quantum spin glasses with magnetic impurities embedded in quantum solids. Physical Review B - Condensed Matter and Materials Physics. 2013;88(1). doi:10.1103/PhysRevB.88.014426 apa: Lemeshko, M., Yao, N., Gorshkov, A., Weimer, H., Bennett, S., Momose, T., & Gopalakrishnan, S. (2013). Controllable quantum spin glasses with magnetic impurities embedded in quantum solids. Physical Review B - Condensed Matter and Materials Physics. American Physical Society. https://doi.org/10.1103/PhysRevB.88.014426 chicago: Lemeshko, Mikhail, Norman Yao, Alexey Gorshkov, Hendrik Weimer, Steven Bennett, Takamasa Momose, and Sarang Gopalakrishnan. “Controllable Quantum Spin Glasses with Magnetic Impurities Embedded in Quantum Solids.” Physical Review B - Condensed Matter and Materials Physics. American Physical Society, 2013. https://doi.org/10.1103/PhysRevB.88.014426. ieee: M. Lemeshko et al., “Controllable quantum spin glasses with magnetic impurities embedded in quantum solids,” Physical Review B - Condensed Matter and Materials Physics, vol. 88, no. 1. American Physical Society, 2013. ista: Lemeshko M, Yao N, Gorshkov A, Weimer H, Bennett S, Momose T, Gopalakrishnan S. 2013. Controllable quantum spin glasses with magnetic impurities embedded in quantum solids. Physical Review B - Condensed Matter and Materials Physics. 88(1). mla: Lemeshko, Mikhail, et al. “Controllable Quantum Spin Glasses with Magnetic Impurities Embedded in Quantum Solids.” Physical Review B - Condensed Matter and Materials Physics, vol. 88, no. 1, American Physical Society, 2013, doi:10.1103/PhysRevB.88.014426. short: M. Lemeshko, N. Yao, A. Gorshkov, H. Weimer, S. Bennett, T. Momose, S. Gopalakrishnan, Physical Review B - Condensed Matter and Materials Physics 88 (2013). date_created: 2018-12-11T11:56:19Z date_published: 2013-07-24T00:00:00Z date_updated: 2021-01-12T06:55:59Z day: '24' doi: 10.1103/PhysRevB.88.014426 extern: 1 intvolume: ' 88' issue: '1' main_file_link: - open_access: '1' url: http://arxiv.org/abs/1307.1130 month: '07' oa: 1 publication: Physical Review B - Condensed Matter and Materials Physics publication_status: published publisher: American Physical Society publist_id: '4767' quality_controlled: 0 status: public title: Controllable quantum spin glasses with magnetic impurities embedded in quantum solids type: journal_article volume: 88 year: '2013' ... --- _id: '2205' abstract: - lang: eng text: The goal of the present article is to review the major developments that have led to the current understanding of molecule-field interactions and experimental methods for manipulating molecules with electromagnetic fields. Molecule-field interactions are at the core of several, seemingly distinct areas of molecular physics. This is reflected in the organisation of this article, which includes sections on field control of molecular beams, external field traps for cold molecules, control of molecular orientation and molecular alignment, manipulation of molecules by non-conservative forces, ultracold molecules and ultracold chemistry, controlled many-body phenomena, entanglement of molecules and dipole arrays, and stability of molecular systems in high-frequency super-intense laser fields. The article contains 852 references. acknowledgement: National Science Foundation; Natural Sciences and Engineering Research Council of Canada author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Roman full_name: Krems, Roman V last_name: Krems - first_name: John full_name: Doyle, John M last_name: Doyle - first_name: Sabre full_name: Kais, Sabre last_name: Kais citation: ama: Lemeshko M, Krems R, Doyle J, Kais S. Manipulation of molecules with electromagnetic fields. Molecular Physics. 2013;111(12-13):1648-1682. doi:10.1080/00268976.2013.813595 apa: Lemeshko, M., Krems, R., Doyle, J., & Kais, S. (2013). Manipulation of molecules with electromagnetic fields. Molecular Physics. Taylor & Francis. https://doi.org/10.1080/00268976.2013.813595 chicago: Lemeshko, Mikhail, Roman Krems, John Doyle, and Sabre Kais. “Manipulation of Molecules with Electromagnetic Fields.” Molecular Physics. Taylor & Francis, 2013. https://doi.org/10.1080/00268976.2013.813595. ieee: M. Lemeshko, R. Krems, J. Doyle, and S. Kais, “Manipulation of molecules with electromagnetic fields,” Molecular Physics, vol. 111, no. 12–13. Taylor & Francis, pp. 1648–1682, 2013. ista: Lemeshko M, Krems R, Doyle J, Kais S. 2013. Manipulation of molecules with electromagnetic fields. Molecular Physics. 111(12–13), 1648–1682. mla: Lemeshko, Mikhail, et al. “Manipulation of Molecules with Electromagnetic Fields.” Molecular Physics, vol. 111, no. 12–13, Taylor & Francis, 2013, pp. 1648–82, doi:10.1080/00268976.2013.813595. short: M. Lemeshko, R. Krems, J. Doyle, S. Kais, Molecular Physics 111 (2013) 1648–1682. date_created: 2018-12-11T11:56:19Z date_published: 2013-07-01T00:00:00Z date_updated: 2020-07-14T12:45:32Z day: '01' doi: 10.1080/00268976.2013.813595 extern: 1 intvolume: ' 111' issue: 12-13 main_file_link: - open_access: '1' url: http://arxiv.org/abs/1306.0912 month: '07' oa: 1 page: 1648 - 1682 publication: Molecular Physics publication_status: published publisher: Taylor & Francis publist_id: '4768' quality_controlled: 0 status: public title: Manipulation of molecules with electromagnetic fields type: review volume: 111 year: '2013' ... --- _id: '2207' abstract: - lang: eng text: The formation of molecules and supramolecular structures results from bonding by conservative forces acting among electrons and nuclei and giving rise to equilibrium configurations defined by minima of the interaction potential. Here we show that bonding can also occur by the non-conservative forces responsible for interaction-induced coherent population trapping. The bound state arises in a dissipative process and manifests itself as a stationary state at a preordained interatomic distance. Remarkably, such a dissipative bonding is present even when the interactions among the atoms are purely repulsive. The dissipative bound states can be created and studied spectroscopically in present-day experiments with ultracold atoms or molecules and can potentially serve for cooling strongly interacting quantum gases. author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Hendrik full_name: Weimer, Hendrik last_name: Weimer citation: ama: Lemeshko M, Weimer H. Dissipative binding of atoms by non-conservative forces. Nature Communications. 2013;4. doi:10.1038/ncomms3230 apa: Lemeshko, M., & Weimer, H. (2013). Dissipative binding of atoms by non-conservative forces. Nature Communications. Nature Publishing Group. https://doi.org/10.1038/ncomms3230 chicago: Lemeshko, Mikhail, and Hendrik Weimer. “Dissipative Binding of Atoms by Non-Conservative Forces.” Nature Communications. Nature Publishing Group, 2013. https://doi.org/10.1038/ncomms3230. ieee: M. Lemeshko and H. Weimer, “Dissipative binding of atoms by non-conservative forces,” Nature Communications, vol. 4. Nature Publishing Group, 2013. ista: Lemeshko M, Weimer H. 2013. Dissipative binding of atoms by non-conservative forces. Nature Communications. 4. mla: Lemeshko, Mikhail, and Hendrik Weimer. “Dissipative Binding of Atoms by Non-Conservative Forces.” Nature Communications, vol. 4, Nature Publishing Group, 2013, doi:10.1038/ncomms3230. short: M. Lemeshko, H. Weimer, Nature Communications 4 (2013). date_created: 2018-12-11T11:56:20Z date_published: 2013-07-30T00:00:00Z date_updated: 2021-01-12T06:55:59Z day: '30' doi: 10.1038/ncomms3230 extern: 1 intvolume: ' 4' main_file_link: - open_access: '1' url: http://arxiv.org/abs/1211.4035 month: '07' oa: 1 publication: Nature Communications publication_status: published publisher: Nature Publishing Group publist_id: '4766' quality_controlled: 0 status: public title: Dissipative binding of atoms by non-conservative forces type: journal_article volume: 4 year: '2013' ... --- _id: '2203' abstract: - lang: eng text: We show that the electric dipole-dipole interaction between a pair of polar molecules undergoes an all-out transformation when superimposed by a far-off-resonant optical field. The combined interaction potential becomes tunable by variation of wavelength, polarisation and intensity of the optical field and its dependence on the intermolecular separation exhibits a crossover from an inverse-power to an oscillating behaviour. The ability thereby offered to control molecular interactions opens up avenues toward the creation and manipulation of novel phases of ultracold polar gases among whose characteristics is a long-range entanglement of the dipoles' mutual orientation. We devised an accurate analytic model of such optical-field-dressed dipole-dipole interaction potentials, which enables a straightforward access to the optical-field parameters required for the design of intermolecular interactions in the laboratory. author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Břetislav full_name: Friedrich, Břetislav last_name: Friedrich citation: ama: 'Lemeshko M, Friedrich B. Interaction between polar molecules subject to a far-off-resonant optical field: Entangled dipoles up- or down-holding each other. Molecular Physics. 2012;110(15-16):1873-1881. doi:10.1080/00268976.2012.689868' apa: 'Lemeshko, M., & Friedrich, B. (2012). Interaction between polar molecules subject to a far-off-resonant optical field: Entangled dipoles up- or down-holding each other. Molecular Physics. Taylor & Francis. https://doi.org/10.1080/00268976.2012.689868' chicago: 'Lemeshko, Mikhail, and Břetislav Friedrich. “Interaction between Polar Molecules Subject to a Far-off-Resonant Optical Field: Entangled Dipoles up- or down-Holding Each Other.” Molecular Physics. Taylor & Francis, 2012. https://doi.org/10.1080/00268976.2012.689868.' ieee: 'M. Lemeshko and B. Friedrich, “Interaction between polar molecules subject to a far-off-resonant optical field: Entangled dipoles up- or down-holding each other,” Molecular Physics, vol. 110, no. 15–16. Taylor & Francis, pp. 1873–1881, 2012.' ista: 'Lemeshko M, Friedrich B. 2012. Interaction between polar molecules subject to a far-off-resonant optical field: Entangled dipoles up- or down-holding each other. Molecular Physics. 110(15–16), 1873–1881.' mla: 'Lemeshko, Mikhail, and Břetislav Friedrich. “Interaction between Polar Molecules Subject to a Far-off-Resonant Optical Field: Entangled Dipoles up- or down-Holding Each Other.” Molecular Physics, vol. 110, no. 15–16, Taylor & Francis, 2012, pp. 1873–81, doi:10.1080/00268976.2012.689868.' short: M. Lemeshko, B. Friedrich, Molecular Physics 110 (2012) 1873–1881. date_created: 2018-12-11T11:56:18Z date_published: 2012-01-01T00:00:00Z date_updated: 2021-01-12T06:55:58Z day: '01' doi: 10.1080/00268976.2012.689868 extern: 1 intvolume: ' 110' issue: 15-16 main_file_link: - open_access: '1' url: http://arxiv.org/abs/1108.4583 month: '01' oa: 1 page: 1873 - 1881 publication: Molecular Physics publication_status: published publisher: Taylor & Francis publist_id: '4770' quality_controlled: 0 status: public title: 'Interaction between polar molecules subject to a far-off-resonant optical field: Entangled dipoles up- or down-holding each other' type: journal_article volume: 110 year: '2012' ... --- _id: '2201' abstract: - lang: eng text: We study the growth dynamics of ordered structures of strongly interacting polar molecules in optical lattices. Using a dipole blockade of microwave excitations, we map the system onto an interacting spin-1/2 model possessing ground states with crystalline order, and describe a way to prepare these states by nonadiabatically driving the transitions between molecular rotational levels. The proposed technique bypasses the need to cross a phase transition and allows for the creation of ordered domains of considerably larger size compared to approaches relying on adiabatic preparation. article_processing_charge: No author: - first_name: Mikhail full_name: Lemeshko, Mikhail id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Roman full_name: Krems, Roman last_name: Krems - first_name: Hendrik full_name: Weimer, Hendrik last_name: Weimer citation: ama: Lemeshko M, Krems R, Weimer H. Nonadiabatic preparation of spin crystals with ultracold polar molecules. Physical Review Letters. 2012;109(3). doi:10.1103/PhysRevLett.109.035301 apa: Lemeshko, M., Krems, R., & Weimer, H. (2012). Nonadiabatic preparation of spin crystals with ultracold polar molecules. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.109.035301 chicago: Lemeshko, Mikhail, Roman Krems, and Hendrik Weimer. “Nonadiabatic Preparation of Spin Crystals with Ultracold Polar Molecules.” Physical Review Letters. American Physical Society, 2012. https://doi.org/10.1103/PhysRevLett.109.035301. ieee: M. Lemeshko, R. Krems, and H. Weimer, “Nonadiabatic preparation of spin crystals with ultracold polar molecules,” Physical Review Letters, vol. 109, no. 3. American Physical Society, 2012. ista: Lemeshko M, Krems R, Weimer H. 2012. Nonadiabatic preparation of spin crystals with ultracold polar molecules. Physical Review Letters. 109(3). mla: Lemeshko, Mikhail, et al. “Nonadiabatic Preparation of Spin Crystals with Ultracold Polar Molecules.” Physical Review Letters, vol. 109, no. 3, American Physical Society, 2012, doi:10.1103/PhysRevLett.109.035301. short: M. Lemeshko, R. Krems, H. Weimer, Physical Review Letters 109 (2012). date_created: 2018-12-11T11:56:17Z date_published: 2012-07-16T00:00:00Z date_updated: 2021-11-16T08:01:02Z day: '16' doi: 10.1103/PhysRevLett.109.035301 extern: '1' intvolume: ' 109' issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1203.0010 month: '07' oa: 1 oa_version: None publication: Physical Review Letters publication_status: published publisher: American Physical Society publist_id: '4772' related_material: link: - relation: erratum url: https://doi.org/10.1103/PhysRevLett.109.049901 status: public title: Nonadiabatic preparation of spin crystals with ultracold polar molecules type: journal_article user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9 volume: 109 year: '2012' ... --- _id: '2202' abstract: - lang: eng text: We propose a method for sensitive parallel detection of low-frequency electromagnetic fields based on the fine structure interactions in paramagnetic polar molecules. Compared to the recently implemented scheme employing ultracold 87Rb atoms by Böhi, the technique based on molecules offers a 100-fold higher sensitivity, the possibility to measure both the electric and magnetic field components, and a probe of a wide range of frequencies from the dc limit to the THz regime. author: - first_name: Sergey full_name: Alyabyshev, Sergey V last_name: Alyabyshev - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Roman full_name: Krems, Roman V last_name: Krems citation: ama: Alyabyshev S, Lemeshko M, Krems R. Sensitive imaging of electromagnetic fields with paramagnetic polar molecules. Physical Review A - Atomic, Molecular, and Optical Physics. 2012;86(1). doi:10.1103/PhysRevA.86.013409 apa: Alyabyshev, S., Lemeshko, M., & Krems, R. (2012). Sensitive imaging of electromagnetic fields with paramagnetic polar molecules. Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society. https://doi.org/10.1103/PhysRevA.86.013409 chicago: Alyabyshev, Sergey, Mikhail Lemeshko, and Roman Krems. “Sensitive Imaging of Electromagnetic Fields with Paramagnetic Polar Molecules.” Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society, 2012. https://doi.org/10.1103/PhysRevA.86.013409. ieee: S. Alyabyshev, M. Lemeshko, and R. Krems, “Sensitive imaging of electromagnetic fields with paramagnetic polar molecules,” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 86, no. 1. American Physical Society, 2012. ista: Alyabyshev S, Lemeshko M, Krems R. 2012. Sensitive imaging of electromagnetic fields with paramagnetic polar molecules. Physical Review A - Atomic, Molecular, and Optical Physics. 86(1). mla: Alyabyshev, Sergey, et al. “Sensitive Imaging of Electromagnetic Fields with Paramagnetic Polar Molecules.” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 86, no. 1, American Physical Society, 2012, doi:10.1103/PhysRevA.86.013409. short: S. Alyabyshev, M. Lemeshko, R. Krems, Physical Review A - Atomic, Molecular, and Optical Physics 86 (2012). date_created: 2018-12-11T11:56:18Z date_published: 2012-07-13T00:00:00Z date_updated: 2021-01-12T06:55:57Z day: '13' doi: 10.1103/PhysRevA.86.013409 extern: 1 intvolume: ' 86' issue: '1' main_file_link: - open_access: '1' url: http://arxiv.org/abs/1202.1857 month: '07' oa: 1 publication: Physical Review A - Atomic, Molecular, and Optical Physics publication_status: published publisher: American Physical Society publist_id: '4773' quality_controlled: 0 status: public title: Sensitive imaging of electromagnetic fields with paramagnetic polar molecules type: journal_article volume: 86 year: '2012' ... --- _id: '2138' abstract: - lang: eng text: A (diatomic) shape resonance is a metastable state of a pair of colliding atoms quasi-bound by the centrifugal barrier imposed by the angular momentum involved in the collision. The temporary trapping of the atoms' scattering wavefunction corresponds to an enhanced atom pair density at low interatomic separations. This leads to larger overlap of the wavefunctions involved in a molecule formation process such as photoassociation, rendering the process more efficient. However, for an ensemble of atoms, the atom pair density will only be enhanced if the energy of the resonance comes close to the temperature of the atomic ensemble. Herein we explore the possibility of controlling the energy of a shape resonance by shifting it toward the temperature of atoms confined in a trap. The shifts are imparted by the interaction of non-resonant light with the anisotropic polarizability of the atom pair, which affects both the centrifugal barrier and the pair's rotational and vibrational levels. We find that at laser intensities of up to 5×109 W/cm2 the pair density is increased by one order of magnitude for 87Rb atoms at 100μK and by two orders of magnitude for 88Sr atoms at 20μK. acknowledgement: Financial support from the Deutsche Forschungsgemeinschaft (Grant No. KO 2301/2), by the Spanish project FIS2008-02380 (MICINN) as well as the Grants FQM-2445 and FQM-4643 (Junta de Andaluc´ıa), Campus de Excelencia Internacional Proyecto GENIL CEB09-0010 author: - first_name: Ruzin full_name: Ağanoğlu, Ruzin last_name: Ağanoğlu - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Břetislav full_name: Friedrich, Břetislav last_name: Friedrich - first_name: Rosario full_name: González-Férez, Rosario last_name: González Férez - first_name: Christiane full_name: Koch, Christiane P last_name: Koch citation: ama: Ağanoğlu R, Lemeshko M, Friedrich B, González Férez R, Koch C. Controlling a diatomic shape resonance with non-resonant light. Unknown. 2011. apa: Ağanoğlu, R., Lemeshko, M., Friedrich, B., González Férez, R., & Koch, C. (2011). Controlling a diatomic shape resonance with non-resonant light. Unknown. ArXiv. chicago: Ağanoğlu, Ruzin, Mikhail Lemeshko, Břetislav Friedrich, Rosario González Férez, and Christiane Koch. “Controlling a Diatomic Shape Resonance with Non-Resonant Light.” Unknown. ArXiv, 2011. ieee: R. Ağanoğlu, M. Lemeshko, B. Friedrich, R. González Férez, and C. Koch, “Controlling a diatomic shape resonance with non-resonant light,” Unknown. ArXiv, 2011. ista: Ağanoğlu R, Lemeshko M, Friedrich B, González Férez R, Koch C. 2011. Controlling a diatomic shape resonance with non-resonant light. Unknown, . mla: Ağanoğlu, Ruzin, et al. “Controlling a Diatomic Shape Resonance with Non-Resonant Light.” Unknown, ArXiv, 2011. short: R. Ağanoğlu, M. Lemeshko, B. Friedrich, R. González Férez, C. Koch, Unknown (2011). date_created: 2018-12-11T11:55:55Z date_published: 2011-05-04T00:00:00Z date_updated: 2021-01-12T06:55:32Z day: '04' extern: 1 main_file_link: - open_access: '1' url: http://arxiv.org/abs/1105.0761 month: '05' oa: 1 publication: Unknown publication_status: published publisher: ArXiv publist_id: '4886' quality_controlled: 0 status: public title: Controlling a diatomic shape resonance with non-resonant light type: preprint year: '2011' ... --- _id: '2200' abstract: - lang: eng text: We made use of supersymmetric (SUSY) quantum mechanics to find the condition under which the Stark effect problem for a polar and polarizable closed-shell diatomic molecule subjected to collinear electrostatic and nonresonant radiative fields becomes exactly solvable. The condition Δω = ω2/4(m+1)2 connects values of the dimensionless parameters ω and Δω that characterize the strengths of the permanent and induced dipole interactions of the molecule with the respective fields. The exact solutions are obtained for the \J̃ = m, m; ω, Δω) family of 'stretched' states. The field-free and strong-field limits of the combined-fields problem were found to exhibit supersymmetry and shape invariance, which is indeed the reason why they are analytically solvable. By making use of the analytic form of the \J̃ = m,m; ω, Δω) wavefunctions, we obtained simple formulae for the expectation values of the space-fixed electric dipole moment, the alignment cosine and the angular momentum squared, and derived a 'sum rule' that combines the above expectation values into a formula for the eigenenergy. The analytic expressions for the characteristics of the strongly oriented and aligned states provide direct access to the values of the interaction parameters required for creating such states in the laboratory. acknowledgement: SK thanks the ARO for financial support author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Mustafa full_name: Mustafa, Mustafa K last_name: Mustafa - first_name: Sabre full_name: Kais, Sabre last_name: Kais - first_name: Břetislav full_name: Friedrich, Břetislav last_name: Friedrich citation: ama: Lemeshko M, Mustafa M, Kais S, Friedrich B. Supersymmetry identifies molecular Stark states whose eigenproperties can be obtained analytically. New Journal of Physics. 2011;13. doi:10.1088/1367-2630/13/6/063036 apa: Lemeshko, M., Mustafa, M., Kais, S., & Friedrich, B. (2011). Supersymmetry identifies molecular Stark states whose eigenproperties can be obtained analytically. New Journal of Physics. IOP Publishing Ltd. https://doi.org/10.1088/1367-2630/13/6/063036 chicago: Lemeshko, Mikhail, Mustafa Mustafa, Sabre Kais, and Břetislav Friedrich. “Supersymmetry Identifies Molecular Stark States Whose Eigenproperties Can Be Obtained Analytically.” New Journal of Physics. IOP Publishing Ltd., 2011. https://doi.org/10.1088/1367-2630/13/6/063036. ieee: M. Lemeshko, M. Mustafa, S. Kais, and B. Friedrich, “Supersymmetry identifies molecular Stark states whose eigenproperties can be obtained analytically,” New Journal of Physics, vol. 13. IOP Publishing Ltd., 2011. ista: Lemeshko M, Mustafa M, Kais S, Friedrich B. 2011. Supersymmetry identifies molecular Stark states whose eigenproperties can be obtained analytically. New Journal of Physics. 13. mla: Lemeshko, Mikhail, et al. “Supersymmetry Identifies Molecular Stark States Whose Eigenproperties Can Be Obtained Analytically.” New Journal of Physics, vol. 13, IOP Publishing Ltd., 2011, doi:10.1088/1367-2630/13/6/063036. short: M. Lemeshko, M. Mustafa, S. Kais, B. Friedrich, New Journal of Physics 13 (2011). date_created: 2018-12-11T11:56:17Z date_published: 2011-06-20T00:00:00Z date_updated: 2021-01-12T06:55:57Z day: '20' doi: 10.1088/1367-2630/13/6/063036 extern: 1 intvolume: ' 13' main_file_link: - open_access: '1' url: 'http://arxiv.org/abs/1106.4402 ' month: '06' oa: 1 publication: New Journal of Physics publication_status: published publisher: IOP Publishing Ltd. publist_id: '4774' quality_controlled: 0 status: public title: Supersymmetry identifies molecular Stark states whose eigenproperties can be obtained analytically type: journal_article volume: 13 year: '2011' ... --- _id: '2199' abstract: - lang: eng text: By invoking supersymmetry, we found a condition under which the Stark-effect problem for a polar and polarizable molecule subject to nonresonant electric fields becomes exactly solvable for the family of stretched states. The analytic expressions for the wave function and eigenenergy and other expectation values allow one to readily reverse-engineer the problem of finding the values of the interaction parameters required for creating quantum states with preordained characteristics. The method also allows the construction of families of isospectral potentials, realizable with combined fields. acknowledgement: 'ARO ' author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Mustafa full_name: Mustafa, Mustafa K last_name: Mustafa - first_name: Sabre full_name: Kais, Sabre last_name: Kais - first_name: Břetislav full_name: Friedrich, Břetislav last_name: Friedrich citation: ama: Lemeshko M, Mustafa M, Kais S, Friedrich B. Supersymmetric factorization yields exact solutions to the molecular Stark-effect problem for "stretched" states. Physical Review A - Atomic, Molecular, and Optical Physics. 2011;83(4). doi:10.1103/PhysRevA.83.043415 apa: Lemeshko, M., Mustafa, M., Kais, S., & Friedrich, B. (2011). Supersymmetric factorization yields exact solutions to the molecular Stark-effect problem for "stretched" states. Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society. https://doi.org/10.1103/PhysRevA.83.043415 chicago: Lemeshko, Mikhail, Mustafa Mustafa, Sabre Kais, and Břetislav Friedrich. “Supersymmetric Factorization Yields Exact Solutions to the Molecular Stark-Effect Problem for "Stretched" States.” Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society, 2011. https://doi.org/10.1103/PhysRevA.83.043415. ieee: M. Lemeshko, M. Mustafa, S. Kais, and B. Friedrich, “Supersymmetric factorization yields exact solutions to the molecular Stark-effect problem for "stretched" states,” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 83, no. 4. American Physical Society, 2011. ista: Lemeshko M, Mustafa M, Kais S, Friedrich B. 2011. Supersymmetric factorization yields exact solutions to the molecular Stark-effect problem for "stretched" states. Physical Review A - Atomic, Molecular, and Optical Physics. 83(4). mla: Lemeshko, Mikhail, et al. “Supersymmetric Factorization Yields Exact Solutions to the Molecular Stark-Effect Problem for "Stretched" States.” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 83, no. 4, American Physical Society, 2011, doi:10.1103/PhysRevA.83.043415. short: M. Lemeshko, M. Mustafa, S. Kais, B. Friedrich, Physical Review A - Atomic, Molecular, and Optical Physics 83 (2011). date_created: 2018-12-11T11:56:17Z date_published: 2011-04-25T00:00:00Z date_updated: 2021-01-12T06:55:56Z day: '25' doi: 10.1103/PhysRevA.83.043415 extern: 1 intvolume: ' 83' issue: '4' main_file_link: - open_access: '1' url: http://arxiv.org/abs/1105.5262 month: '04' oa: 1 publication: Physical Review A - Atomic, Molecular, and Optical Physics publication_status: published publisher: American Physical Society publist_id: '4776' quality_controlled: 0 status: public title: Supersymmetric factorization yields exact solutions to the molecular Stark-effect problem for "stretched" states type: journal_article volume: 83 year: '2011' ... --- _id: '2198' abstract: - lang: eng text: We show that dressing polar molecules with a far-off-resonant optical field leads to new types of intermolecular potentials, which undergo a crossover from the inverse power to oscillating behavior depending on the intermolecular distance, and whose parameters can be tuned by varying the laser intensity and wavelength. We present analytic expressions for the potential energy surfaces, thereby providing direct access to the parameters of an optical field required to design intermolecular interactions experimentally. author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Lemeshko M. Shaping interactions between polar molecules with far-off-resonant light. Physical Review A - Atomic, Molecular, and Optical Physics. 2011;83(5). doi:10.1103/PhysRevA.83.051402 apa: Lemeshko, M. (2011). Shaping interactions between polar molecules with far-off-resonant light. Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society. https://doi.org/10.1103/PhysRevA.83.051402 chicago: Lemeshko, Mikhail. “Shaping Interactions between Polar Molecules with Far-off-Resonant Light.” Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society, 2011. https://doi.org/10.1103/PhysRevA.83.051402. ieee: M. Lemeshko, “Shaping interactions between polar molecules with far-off-resonant light,” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 83, no. 5. American Physical Society, 2011. ista: Lemeshko M. 2011. Shaping interactions between polar molecules with far-off-resonant light. Physical Review A - Atomic, Molecular, and Optical Physics. 83(5). mla: Lemeshko, Mikhail. “Shaping Interactions between Polar Molecules with Far-off-Resonant Light.” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 83, no. 5, American Physical Society, 2011, doi:10.1103/PhysRevA.83.051402. short: M. Lemeshko, Physical Review A - Atomic, Molecular, and Optical Physics 83 (2011). date_created: 2018-12-11T11:56:17Z date_published: 2011-05-27T00:00:00Z date_updated: 2021-01-12T06:55:55Z day: '27' doi: 10.1103/PhysRevA.83.051402 extern: 1 intvolume: ' 83' issue: '5' main_file_link: - open_access: '1' url: http://arxiv.org/abs/1104.1046 month: '05' oa: 1 publication: Physical Review A - Atomic, Molecular, and Optical Physics publication_status: published publisher: American Physical Society publist_id: '4775' quality_controlled: 0 status: public title: Shaping interactions between polar molecules with far-off-resonant light type: journal_article volume: 83 year: '2011' ... --- _id: '2194' abstract: - lang: eng text: We develop an analytic model of vector correlations in rotationally inelastic atom-diatom collisions and test it against the much examined Ar-NO (X2Π) system. Based on the Fraunhofer scattering of matter waves, the model furnishes complex scattering amplitudes needed to evaluate the polarization moments characterizing the quantum stereodynamics. The analytic polarization moments are found to be in an excellent agreement with experimental results and with close-coupling calculations available at thermal energies. The model reveals that the stereodynamics is governed by diffraction from the repulsive core of the Ar-NO potential, which can be characterized by a single Legendre moment. author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Břetislav full_name: Friedrich, Břetislav last_name: Friedrich citation: ama: Lemeshko M, Friedrich B. An analytic model of the stereodynamics of rotationally inelastic molecular collisions. Physical Chemistry Chemical Physics. 2010;12(5):1038-1041. doi:10.1039/B920899B apa: Lemeshko, M., & Friedrich, B. (2010). An analytic model of the stereodynamics of rotationally inelastic molecular collisions. Physical Chemistry Chemical Physics. Royal Society of Chemistry. https://doi.org/10.1039/B920899B chicago: Lemeshko, Mikhail, and Břetislav Friedrich. “An Analytic Model of the Stereodynamics of Rotationally Inelastic Molecular Collisions.” Physical Chemistry Chemical Physics. Royal Society of Chemistry, 2010. https://doi.org/10.1039/B920899B . ieee: M. Lemeshko and B. Friedrich, “An analytic model of the stereodynamics of rotationally inelastic molecular collisions,” Physical Chemistry Chemical Physics, vol. 12, no. 5. Royal Society of Chemistry, pp. 1038–1041, 2010. ista: Lemeshko M, Friedrich B. 2010. An analytic model of the stereodynamics of rotationally inelastic molecular collisions. Physical Chemistry Chemical Physics. 12(5), 1038–1041. mla: Lemeshko, Mikhail, and Břetislav Friedrich. “An Analytic Model of the Stereodynamics of Rotationally Inelastic Molecular Collisions.” Physical Chemistry Chemical Physics, vol. 12, no. 5, Royal Society of Chemistry, 2010, pp. 1038–41, doi:10.1039/B920899B . short: M. Lemeshko, B. Friedrich, Physical Chemistry Chemical Physics 12 (2010) 1038–1041. date_created: 2018-12-11T11:56:15Z date_published: 2010-02-07T00:00:00Z date_updated: 2021-01-12T06:55:54Z day: '07' doi: '10.1039/B920899B ' extern: 1 intvolume: ' 12' issue: '5' main_file_link: - open_access: '1' url: http://arxiv.org/abs/0910.0952 month: '02' oa: 1 page: 1038 - 1041 publication: Physical Chemistry Chemical Physics publication_status: published publisher: Royal Society of Chemistry publist_id: '4780' quality_controlled: 0 status: public title: An analytic model of the stereodynamics of rotationally inelastic molecular collisions type: journal_article volume: 12 year: '2010' ... --- _id: '2196' abstract: - lang: eng text: We evaluate the shifts imparted to vibrational and rotational levels of a linear molecule by a nonresonant laser field at intensities of up to 10 12 W/cm2. Both types of shift are found to be either positive or negative, depending on the initial rotational state acted upon by the field. An adiabatic field-molecule interaction imparts a rotational energy shift which is negative and exceeds the concomitant positive vibrational shift by a few orders of magnitude. The rovibrational states are thus pushed downward in such a field. A nonresonant pulsed laser field that interacts nonadiabatically with the molecule is found to impart rotational and vibrational shifts of the same order of magnitude. The nonadiabatic energy transfer occurs most readily at a pulse duration which amounts to about a tenth of the molecule's rotational period and vanishes when the sudden regime is attained for shorter pulses. We applied our treatment to the much-studied 87Rb2 molecule in the last bound vibrational levels of its lowest singlet and triplet electronic states. Our calculations indicate that 15 and 1.5 ns laser pulses of an intensity in excess of 5 × 109 W/cm2 are capable of dissociating the molecule due to the vibrational shift. Lesser shifts can be used to fine-tune the rovibrational levels and thereby affect collisional resonances by the nonresonant light. The energy shifts due to laser intensities of 109 W/cm2 may be discernible spectroscopically, with a 10 MHz resolution. author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Břetislav full_name: Friedrich, Břetislav last_name: Friedrich citation: ama: Lemeshko M, Friedrich B. Fine-tuning molecular energy levels by nonresonant laser pulses. Journal of Physical Chemistry A. 2010;114(36):9848-9854. doi:10.1021/jp1032299 apa: Lemeshko, M., & Friedrich, B. (2010). Fine-tuning molecular energy levels by nonresonant laser pulses. Journal of Physical Chemistry A. American Chemical Society. https://doi.org/10.1021/jp1032299 chicago: Lemeshko, Mikhail, and Břetislav Friedrich. “Fine-Tuning Molecular Energy Levels by Nonresonant Laser Pulses.” Journal of Physical Chemistry A. American Chemical Society, 2010. https://doi.org/10.1021/jp1032299. ieee: M. Lemeshko and B. Friedrich, “Fine-tuning molecular energy levels by nonresonant laser pulses,” Journal of Physical Chemistry A, vol. 114, no. 36. American Chemical Society, pp. 9848–9854, 2010. ista: Lemeshko M, Friedrich B. 2010. Fine-tuning molecular energy levels by nonresonant laser pulses. Journal of Physical Chemistry A. 114(36), 9848–9854. mla: Lemeshko, Mikhail, and Břetislav Friedrich. “Fine-Tuning Molecular Energy Levels by Nonresonant Laser Pulses.” Journal of Physical Chemistry A, vol. 114, no. 36, American Chemical Society, 2010, pp. 9848–54, doi:10.1021/jp1032299. short: M. Lemeshko, B. Friedrich, Journal of Physical Chemistry A 114 (2010) 9848–9854. date_created: 2018-12-11T11:56:16Z date_published: 2010-09-16T00:00:00Z date_updated: 2021-01-12T06:55:55Z day: '16' doi: 10.1021/jp1032299 extern: 1 intvolume: ' 114' issue: '36' main_file_link: - open_access: '1' url: http://arxiv.org/abs/1004.1742 month: '09' oa: 1 page: 9848 - 9854 publication: Journal of Physical Chemistry A publication_status: published publisher: American Chemical Society publist_id: '4777' quality_controlled: 0 status: public title: Fine-tuning molecular energy levels by nonresonant laser pulses type: journal_article volume: 114 year: '2010' ... --- _id: '2195' abstract: - lang: eng text: 'Following upon our recent work on vector correlations in the Ar-NO collisions [Lemeshko and Friedrich, Phys. Chem. Chem. Phys. 12, 1038 (2010)], we compare model results with close-coupling calculations for a range of channels and collision energies for the He-NO system. The striking agreement between the model and exact polarization moments indicates that the stereodynamics of rotationally inelastic atom-molecule collisions at thermal energies is governed by diffraction of matter waves from a two-dimensional repulsive core of the atom-molecule potential. Furthermore, the model polarization moments characterizing the He-NO, He- O2, He-OH, and He-CaH stereodynamics are found to coalesce into a single, distinctive pattern, which can serve as a "fingerprint" to identify diffraction-driven stereodynamics in future work. ' acknowledgement: Financial support of the Spanish Ministry of Science and Innovation (Grant No. CTQ2008-02578) is gratefully acknowledged. author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Pablo full_name: Jambrina, Pablo G last_name: Jambrina - first_name: Marcelo full_name: De Miranda, Marcelo P last_name: De Miranda - first_name: Břetislav full_name: Friedrich, Břetislav last_name: Friedrich citation: ama: 'Lemeshko M, Jambrina P, De Miranda M, Friedrich B. Communications: When diffraction rules the stereodynamics of rotationally inelastic collisions. Journal of Chemical Physics. 2010;132(16). doi:10.1063/1.3386530' apa: 'Lemeshko, M., Jambrina, P., De Miranda, M., & Friedrich, B. (2010). Communications: When diffraction rules the stereodynamics of rotationally inelastic collisions. Journal of Chemical Physics. American Institute of Physics. https://doi.org/10.1063/1.3386530' chicago: 'Lemeshko, Mikhail, Pablo Jambrina, Marcelo De Miranda, and Břetislav Friedrich. “Communications: When Diffraction Rules the Stereodynamics of Rotationally Inelastic Collisions.” Journal of Chemical Physics. American Institute of Physics, 2010. https://doi.org/10.1063/1.3386530.' ieee: 'M. Lemeshko, P. Jambrina, M. De Miranda, and B. Friedrich, “Communications: When diffraction rules the stereodynamics of rotationally inelastic collisions,” Journal of Chemical Physics, vol. 132, no. 16. American Institute of Physics, 2010.' ista: 'Lemeshko M, Jambrina P, De Miranda M, Friedrich B. 2010. Communications: When diffraction rules the stereodynamics of rotationally inelastic collisions. Journal of Chemical Physics. 132(16).' mla: 'Lemeshko, Mikhail, et al. “Communications: When Diffraction Rules the Stereodynamics of Rotationally Inelastic Collisions.” Journal of Chemical Physics, vol. 132, no. 16, American Institute of Physics, 2010, doi:10.1063/1.3386530.' short: M. Lemeshko, P. Jambrina, M. De Miranda, B. Friedrich, Journal of Chemical Physics 132 (2010). date_created: 2018-12-11T11:56:16Z date_published: 2010-04-28T00:00:00Z date_updated: 2021-01-12T06:55:54Z day: '28' doi: 10.1063/1.3386530 extern: 1 intvolume: ' 132' issue: '16' main_file_link: - open_access: '1' url: http://arxiv.org/abs/1002.1572 month: '04' oa: 1 publication: Journal of Chemical Physics publication_status: published publisher: American Institute of Physics publist_id: '4779' quality_controlled: 0 status: public title: 'Communications: When diffraction rules the stereodynamics of rotationally inelastic collisions' type: journal_article volume: 132 year: '2010' ... --- _id: '2197' abstract: - lang: eng text: We present an analytic model of the refractive index for matter waves propagating through atomic or molecular gases. The model, which combines the Wentzel-Kramers-Brillouin (WKB) treatment of the long-range attraction with the Fraunhofer model treatment of the short-range repulsion, furnishes a refractive index in compelling agreement with recent experiments of Jacquey [Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.98.240405 98, 240405 (2007)] on Li atom matter waves passing through dilute noble gases. We show that the diffractive contribution, which arises from scattering by a two-dimensional "hard core" of the potential, is essential for obtaining a correct imaginary part of the refractive index. author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Břetislav full_name: Friedrich, Břetislav last_name: Friedrich citation: ama: 'Lemeshko M, Friedrich B. Multiple scattering of matter waves: An analytic model of the refractive index for atomic and molecular gases. Physical Review A - Atomic, Molecular, and Optical Physics. 2010;82(2). doi:10.1103/PhysRevA.82.022711' apa: 'Lemeshko, M., & Friedrich, B. (2010). Multiple scattering of matter waves: An analytic model of the refractive index for atomic and molecular gases. Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society. https://doi.org/10.1103/PhysRevA.82.022711' chicago: 'Lemeshko, Mikhail, and Břetislav Friedrich. “Multiple Scattering of Matter Waves: An Analytic Model of the Refractive Index for Atomic and Molecular Gases.” Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society, 2010. https://doi.org/10.1103/PhysRevA.82.022711.' ieee: 'M. Lemeshko and B. Friedrich, “Multiple scattering of matter waves: An analytic model of the refractive index for atomic and molecular gases,” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 82, no. 2. American Physical Society, 2010.' ista: 'Lemeshko M, Friedrich B. 2010. Multiple scattering of matter waves: An analytic model of the refractive index for atomic and molecular gases. Physical Review A - Atomic, Molecular, and Optical Physics. 82(2).' mla: 'Lemeshko, Mikhail, and Břetislav Friedrich. “Multiple Scattering of Matter Waves: An Analytic Model of the Refractive Index for Atomic and Molecular Gases.” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 82, no. 2, American Physical Society, 2010, doi:10.1103/PhysRevA.82.022711.' short: M. Lemeshko, B. Friedrich, Physical Review A - Atomic, Molecular, and Optical Physics 82 (2010). date_created: 2018-12-11T11:56:16Z date_published: 2010-08-18T00:00:00Z date_updated: 2021-01-12T06:55:55Z day: '18' doi: 10.1103/PhysRevA.82.022711 extern: 1 intvolume: ' 82' issue: '2' main_file_link: - open_access: '1' url: http://arxiv.org/abs/1003.0854 month: '08' oa: 1 publication: Physical Review A - Atomic, Molecular, and Optical Physics publication_status: published publisher: American Physical Society publist_id: '4778' quality_controlled: 0 status: public title: 'Multiple scattering of matter waves: An analytic model of the refractive index for atomic and molecular gases' type: journal_article volume: 82 year: '2010' ... --- _id: '2136' abstract: - lang: eng text: The local atomic structure of PbTiO3, BaTiO3, and KNbO3 perovskite-type crystals and K x Na1 − x NbO3 solid solutions in different phases is investigated using the angular dependence of the pre-edge structure of the Ti and Nb K X-ray absorption spectra and the EXAFS data. In noncubic phases, a considerable deviation of the local structure from the structure determined from diffraction data is observed only for the tetragonal phase of the BaTiO3 crystal. It is revealed that, in the cubic phase of niobates, the niobium atoms are characterized by significant displacements from the centrosymmetric positions along the threefold axes, so that they are close in the magnitude and the direction to the displacements in the low-temperatures rhombohedral phases. acknowledgement: This study was supported by the Russian Founda*tion for Basic Research (project no. 07*02*00796a). author: - first_name: Rostislav full_name: Vedrinskiǐ, Rostislav V last_name: Vedrinskiǐ - first_name: V. full_name: Kraǐzman, V. L last_name: Kraǐzman - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Elena full_name: Nazarenko, Elena S last_name: Nazarenko - first_name: Alexander full_name: Novakovich, Alexander A last_name: Novakovich - first_name: Larisa full_name: Reznichenko, Larisa A last_name: Reznichenko - first_name: Vladimir full_name: Fokin, Vladimir N last_name: Fokin - first_name: Victoria full_name: Shuvaeva, Victoria A last_name: Shuvaeva citation: ama: 'Vedrinskiǐ R, Kraǐzman V, Lemeshko M, et al. Local atomic structure of niobates and titanates from X-ray absorption spectroscopic data. In: Vol 51. Springer; 2009:1394-1398. doi:10.1134/S106378340907018X' apa: 'Vedrinskiǐ, R., Kraǐzman, V., Lemeshko, M., Nazarenko, E., Novakovich, A., Reznichenko, L., … Shuvaeva, V. (2009). Local atomic structure of niobates and titanates from X-ray absorption spectroscopic data (Vol. 51, pp. 1394–1398). Presented at the CoPoF: 18th All-Russia Conference on Physics of Ferroelectrics (VKS-XVIII), Springer. https://doi.org/10.1134/S106378340907018X' chicago: Vedrinskiǐ, Rostislav, V. Kraǐzman, Mikhail Lemeshko, Elena Nazarenko, Alexander Novakovich, Larisa Reznichenko, Vladimir Fokin, and Victoria Shuvaeva. “Local Atomic Structure of Niobates and Titanates from X-Ray Absorption Spectroscopic Data,” 51:1394–98. Springer, 2009. https://doi.org/10.1134/S106378340907018X. ieee: 'R. Vedrinskiǐ et al., “Local atomic structure of niobates and titanates from X-ray absorption spectroscopic data,” presented at the CoPoF: 18th All-Russia Conference on Physics of Ferroelectrics (VKS-XVIII), 2009, vol. 51, no. 7, pp. 1394–1398.' ista: 'Vedrinskiǐ R, Kraǐzman V, Lemeshko M, Nazarenko E, Novakovich A, Reznichenko L, Fokin V, Shuvaeva V. 2009. Local atomic structure of niobates and titanates from X-ray absorption spectroscopic data. CoPoF: 18th All-Russia Conference on Physics of Ferroelectrics (VKS-XVIII) vol. 51, 1394–1398.' mla: Vedrinskiǐ, Rostislav, et al. Local Atomic Structure of Niobates and Titanates from X-Ray Absorption Spectroscopic Data. Vol. 51, no. 7, Springer, 2009, pp. 1394–98, doi:10.1134/S106378340907018X. short: R. Vedrinskiǐ, V. Kraǐzman, M. Lemeshko, E. Nazarenko, A. Novakovich, L. Reznichenko, V. Fokin, V. Shuvaeva, in:, Springer, 2009, pp. 1394–1398. conference: name: 'CoPoF: 18th All-Russia Conference on Physics of Ferroelectrics (VKS-XVIII)' date_created: 2018-12-11T11:55:55Z date_published: 2009-07-12T00:00:00Z date_updated: 2021-01-12T06:55:31Z day: '12' doi: 10.1134/S106378340907018X extern: 1 intvolume: ' 51' issue: '7' month: '07' page: 1394 - 1398 publication_status: published publisher: Springer publist_id: '4898' quality_controlled: 0 status: public title: Local atomic structure of niobates and titanates from X-ray absorption spectroscopic data type: conference volume: 51 year: '2009' ... --- _id: '2137' abstract: - lang: eng text: Relying on the quantization rule of Raab and Friedrich [Phys. Rev. A (2009) in press], we derive simple and accurate formulae for the number of rotational states supported by a weakly bound vibrational level of a diatomic molecular ion. We also provide analytic estimates of the rotational constants of any such levels up to threshold for dissociation and obtain a criterion for determining whether a given weakly bound vibrational level is rotationless. The results depend solely on the long-range part of the molecular potential. author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Bretislav full_name: Frierich, Bretislav last_name: Frierich citation: ama: Lemeshko M, Frierich B. Rotational structure of weakly bound molecular ions. Journal of Atomic and Molecular Sciences. 2009;1(1):41-47. doi:10.4208/jams.101009.110209a apa: Lemeshko, M., & Frierich, B. (2009). Rotational structure of weakly bound molecular ions. Journal of Atomic and Molecular Sciences. Global Science Press. https://doi.org/10.4208/jams.101009.110209a chicago: Lemeshko, Mikhail, and Bretislav Frierich. “Rotational Structure of Weakly Bound Molecular Ions.” Journal of Atomic and Molecular Sciences. Global Science Press, 2009. https://doi.org/10.4208/jams.101009.110209a. ieee: M. Lemeshko and B. Frierich, “Rotational structure of weakly bound molecular ions,” Journal of Atomic and Molecular Sciences, vol. 1, no. 1. Global Science Press, pp. 41–47, 2009. ista: Lemeshko M, Frierich B. 2009. Rotational structure of weakly bound molecular ions. Journal of Atomic and Molecular Sciences. 1(1), 41–47. mla: Lemeshko, Mikhail, and Bretislav Frierich. “Rotational Structure of Weakly Bound Molecular Ions.” Journal of Atomic and Molecular Sciences, vol. 1, no. 1, Global Science Press, 2009, pp. 41–47, doi:10.4208/jams.101009.110209a. short: M. Lemeshko, B. Frierich, Journal of Atomic and Molecular Sciences 1 (2009) 41–47. date_created: 2018-12-11T11:55:55Z date_published: 2009-10-10T00:00:00Z date_updated: 2021-01-12T06:55:32Z day: '10' doi: 10.4208/jams.101009.110209a extern: 1 intvolume: ' 1' issue: '1' main_file_link: - open_access: '1' url: http://arxiv.org/abs/0910.5743 month: '10' oa: 1 page: 41 - 47 publication: Journal of Atomic and Molecular Sciences publication_status: published publisher: Global Science Press publist_id: '4887' quality_controlled: 0 status: public title: Rotational structure of weakly bound molecular ions type: journal_article volume: 1 year: '2009' ... --- _id: '2149' abstract: - lang: eng text: We investigate the effects of a magnetic field on the dynamics of rotationally inelastic collisions of open-shell molecules (Σ2, Σ3, and Π2) with closed-shell atoms. Our treatment makes use of the Fraunhofer model of matter wave scattering and its recent extension to collisions in electric [M. Lemeshko and B. Friedrich, J. Chem. Phys. 129, 024301 (2008)] and radiative fields [M. Lemeshko and B. Friedrich, Int. J. Mass. Spec. 280, 19 (2009)]. A magnetic field aligns the molecule in the space-fixed frame and thereby alters the effective shape of the diffraction target. This significantly affects the differential and integral scattering cross sections. We exemplify our treatment by evaluating the magnetic-field-dependent scattering characteristics of the He-CaH (XΣ+2), He-O2 (XΣ–3), and He-OH (XΠΩ2) systems at thermal collision energies. Since the cross sections can be obtained for different orientations of the magnetic field with respect to the relative velocity vector, the model also offers predictions about the frontal-versus-lateral steric asymmetry of the collisions. The steric asymmetry is found to be almost negligible for the He-OH system, weak for the He-CaH collisions, and strong for the He-O2. While odd ΔM transitions dominate the He-OH [J=3/2,f→J′,e/f] integral cross sections in a magnetic field parallel to the relative velocity vector, even ΔM transitions prevail in the case of the He-CaH (X2Σ+) and He-O2 (XΣ−3) collision systems. For the latter system, the magnetic field opens inelastic channels that are closed in the absence of the field. These involve the transitions N=1,J=0→N′, J′ with J′=N′. author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Břetislav full_name: Friedrich, Břetislav last_name: Friedrich citation: ama: 'Lemeshko M, Friedrich B. Collisions of paramagnetic molecules in magnetic fields: An analytic model based on Fraunhofer diffraction of matter waves. Physical Review A - Atomic, Molecular, and Optical Physics. 2009;79(1). doi:10.1103/PhysRevA.79.012718' apa: 'Lemeshko, M., & Friedrich, B. (2009). Collisions of paramagnetic molecules in magnetic fields: An analytic model based on Fraunhofer diffraction of matter waves. Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society. https://doi.org/10.1103/PhysRevA.79.012718' chicago: 'Lemeshko, Mikhail, and Břetislav Friedrich. “Collisions of Paramagnetic Molecules in Magnetic Fields: An Analytic Model Based on Fraunhofer Diffraction of Matter Waves.” Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society, 2009. https://doi.org/10.1103/PhysRevA.79.012718.' ieee: 'M. Lemeshko and B. Friedrich, “Collisions of paramagnetic molecules in magnetic fields: An analytic model based on Fraunhofer diffraction of matter waves,” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 79, no. 1. American Physical Society, 2009.' ista: 'Lemeshko M, Friedrich B. 2009. Collisions of paramagnetic molecules in magnetic fields: An analytic model based on Fraunhofer diffraction of matter waves. Physical Review A - Atomic, Molecular, and Optical Physics. 79(1).' mla: 'Lemeshko, Mikhail, and Břetislav Friedrich. “Collisions of Paramagnetic Molecules in Magnetic Fields: An Analytic Model Based on Fraunhofer Diffraction of Matter Waves.” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 79, no. 1, American Physical Society, 2009, doi:10.1103/PhysRevA.79.012718.' short: M. Lemeshko, B. Friedrich, Physical Review A - Atomic, Molecular, and Optical Physics 79 (2009). date_created: 2018-12-11T11:55:59Z date_published: 2009-01-30T00:00:00Z date_updated: 2021-01-12T06:55:36Z day: '30' doi: 10.1103/PhysRevA.79.012718 extern: 1 intvolume: ' 79' issue: '1' main_file_link: - open_access: '1' url: http://arxiv.org/abs/0809.3331 month: '01' oa: 1 publication: Physical Review A - Atomic, Molecular, and Optical Physics publication_status: published publisher: American Physical Society publist_id: '4875' quality_controlled: 0 status: public title: 'Collisions of paramagnetic molecules in magnetic fields: An analytic model based on Fraunhofer diffraction of matter waves' type: journal_article volume: 79 year: '2009' ... --- _id: '2150' abstract: - lang: eng text: We examine the effects of a linearly polarized nonresonant radiative field on the dynamics of rotationally inelastic Na+ + N2 collisions at eV collision energies. Our treatment is based on the Fraunhofer model of matter wave scattering and its recent extension to collisions in electric fields [M. Lemeshko, B. Friedrich, J. Chem. Phys. 129 (2008) 024301]. The nonresonant radiative field changes the effective shape of the target molecule by aligning it in the space-fixed frame. This markedly alters the differential and integral scattering cross-sections. As the cross-sections can be evaluated for a polarization of the radiative field collinear or perpendicular to the relative velocity vector, the model also offers predictions about steric asymmetry of the collisions. author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Břetislav full_name: Friedrich, Břetislav last_name: Friedrich citation: ama: Lemeshko M, Friedrich B. The effect of a nonresonant radiative field on low-energy rotationally inelastic Na+ + N2 collisions. International Journal of Mass Spectrometry. 2009;280(1-3):19-25. doi:10.1016/j.ijms.2008.06.010 apa: Lemeshko, M., & Friedrich, B. (2009). The effect of a nonresonant radiative field on low-energy rotationally inelastic Na+ + N2 collisions. International Journal of Mass Spectrometry. Elsevier. https://doi.org/10.1016/j.ijms.2008.06.010 chicago: Lemeshko, Mikhail, and Břetislav Friedrich. “The Effect of a Nonresonant Radiative Field on Low-Energy Rotationally Inelastic Na+ + N2 Collisions.” International Journal of Mass Spectrometry. Elsevier, 2009. https://doi.org/10.1016/j.ijms.2008.06.010 . ieee: M. Lemeshko and B. Friedrich, “The effect of a nonresonant radiative field on low-energy rotationally inelastic Na+ + N2 collisions,” International Journal of Mass Spectrometry, vol. 280, no. 1–3. Elsevier, pp. 19–25, 2009. ista: Lemeshko M, Friedrich B. 2009. The effect of a nonresonant radiative field on low-energy rotationally inelastic Na+ + N2 collisions. International Journal of Mass Spectrometry. 280(1–3), 19–25. mla: Lemeshko, Mikhail, and Břetislav Friedrich. “The Effect of a Nonresonant Radiative Field on Low-Energy Rotationally Inelastic Na+ + N2 Collisions.” International Journal of Mass Spectrometry, vol. 280, no. 1–3, Elsevier, 2009, pp. 19–25, doi:10.1016/j.ijms.2008.06.010 . short: M. Lemeshko, B. Friedrich, International Journal of Mass Spectrometry 280 (2009) 19–25. date_created: 2018-12-11T11:56:00Z date_published: 2009-02-01T00:00:00Z date_updated: 2021-01-12T06:55:37Z day: '01' doi: '10.1016/j.ijms.2008.06.010 ' extern: 1 intvolume: ' 280' issue: 1-3 main_file_link: - open_access: '1' url: http://arxiv.org/abs/0804.4845 month: '02' oa: 1 page: 19 - 25 publication: International Journal of Mass Spectrometry publication_status: published publisher: Elsevier publist_id: '4874' quality_controlled: 0 status: public title: The effect of a nonresonant radiative field on low-energy rotationally inelastic Na+ + N2 collisions type: journal_article volume: 280 year: '2009' ... --- _id: '2192' abstract: - lang: eng text: We develop an analytic model of thermal state-to-state rotationally inelastic collisions of asymmetric-top molecules with closed-shell atoms in electric fields and apply it to the Ar-H2O collision system. The predicted cross sections as well as the steric asymmetry of the collisions show at fields up to 150 kV/cm characteristic field-dependent features which can be experimentally tested. Particularly suitable candidates for such tests are the 000 → 220 and 101→ 221 channels, arising from the relaxation of the field-free selection rules due to the hybridization of J states by the field. Averaging over the M' product channels is found to largely obliterate the orientation effects brought about by the field. author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Břetislav full_name: Friedrich, Břetislav last_name: Friedrich citation: ama: Lemeshko M, Friedrich B. Model analysis of rotationally inelastic Ar + H2O scattering in an electric field. Journal of Physical Chemistry A. 2009;113(52):15055-15063. doi:10.1021/jp9051598 apa: Lemeshko, M., & Friedrich, B. (2009). Model analysis of rotationally inelastic Ar + H2O scattering in an electric field. Journal of Physical Chemistry A. American Chemical Society. https://doi.org/10.1021/jp9051598 chicago: Lemeshko, Mikhail, and Břetislav Friedrich. “Model Analysis of Rotationally Inelastic Ar + H2O Scattering in an Electric Field.” Journal of Physical Chemistry A. American Chemical Society, 2009. https://doi.org/10.1021/jp9051598. ieee: M. Lemeshko and B. Friedrich, “Model analysis of rotationally inelastic Ar + H2O scattering in an electric field,” Journal of Physical Chemistry A, vol. 113, no. 52. American Chemical Society, pp. 15055–15063, 2009. ista: Lemeshko M, Friedrich B. 2009. Model analysis of rotationally inelastic Ar + H2O scattering in an electric field. Journal of Physical Chemistry A. 113(52), 15055–15063. mla: Lemeshko, Mikhail, and Břetislav Friedrich. “Model Analysis of Rotationally Inelastic Ar + H2O Scattering in an Electric Field.” Journal of Physical Chemistry A, vol. 113, no. 52, American Chemical Society, 2009, pp. 15055–63, doi:10.1021/jp9051598. short: M. Lemeshko, B. Friedrich, Journal of Physical Chemistry A 113 (2009) 15055–15063. date_created: 2018-12-11T11:56:14Z date_published: 2009-12-31T00:00:00Z date_updated: 2021-01-12T06:55:53Z day: '31' doi: 10.1021/jp9051598 extern: 1 intvolume: ' 113' issue: '52' main_file_link: - open_access: '1' url: http://arxiv.org/abs/0906.0443 month: '12' oa: 1 page: 15055 - 15063 publication: Journal of Physical Chemistry A publication_status: published publisher: American Chemical Society publist_id: '4781' quality_controlled: 0 status: public title: Model analysis of rotationally inelastic Ar + H2O scattering in an electric field type: journal_article volume: 113 year: '2009' ... --- _id: '2191' abstract: - lang: eng text: 'By making use of the quantization rule of Raab and Friedrich [Phys. Rev. A 78, 022707 (2008)], we derive simple and accurate formulae for the number of rotational states supported by a weakly bound vibrational level of a diatomic molecule and the rotational constants of any such levels up to the threshold, and provide a criterion for determining whether a given weakly bound vibrational level is rotationless. The results depend solely on the long-range part of the molecular potential and are applicable to halo molecules. ' author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Břetislav full_name: Friedrich, Břetislav last_name: Friedrich citation: ama: Lemeshko M, Friedrich B. Rotational and rotationless states of weakly bound molecules. Physical Review A - Atomic, Molecular, and Optical Physics. 2009;79(5). doi:10.1103/PhysRevA.79.050501 apa: Lemeshko, M., & Friedrich, B. (2009). Rotational and rotationless states of weakly bound molecules. Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society. https://doi.org/10.1103/PhysRevA.79.050501 chicago: Lemeshko, Mikhail, and Břetislav Friedrich. “Rotational and Rotationless States of Weakly Bound Molecules.” Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society, 2009. https://doi.org/10.1103/PhysRevA.79.050501. ieee: M. Lemeshko and B. Friedrich, “Rotational and rotationless states of weakly bound molecules,” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 79, no. 5. American Physical Society, 2009. ista: Lemeshko M, Friedrich B. 2009. Rotational and rotationless states of weakly bound molecules. Physical Review A - Atomic, Molecular, and Optical Physics. 79(5). mla: Lemeshko, Mikhail, and Břetislav Friedrich. “Rotational and Rotationless States of Weakly Bound Molecules.” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 79, no. 5, American Physical Society, 2009, doi:10.1103/PhysRevA.79.050501. short: M. Lemeshko, B. Friedrich, Physical Review A - Atomic, Molecular, and Optical Physics 79 (2009). date_created: 2018-12-11T11:56:14Z date_published: 2009-05-26T00:00:00Z date_updated: 2021-01-12T06:55:53Z day: '26' doi: 10.1103/PhysRevA.79.050501 extern: 1 intvolume: ' 79' issue: '5' main_file_link: - open_access: '1' url: http://arxiv.org/abs/0904.0567 month: '05' oa: 1 publication: Physical Review A - Atomic, Molecular, and Optical Physics publication_status: published publisher: American Physical Society publist_id: '4783' quality_controlled: 0 status: public title: Rotational and rotationless states of weakly bound molecules type: journal_article volume: 79 year: '2009' ... --- _id: '2193' abstract: - lang: eng text: We show that weakly bound molecules can be probed by "shaking" in a pulsed nonresonant laser field. The field introduces a centrifugal term which expels the highest vibrational level from the potential that binds it. Our numerical simulations applied to the Rb2 and KRb Feshbach molecules indicate that shaking by feasible laser pulses can be used to accurately recover the square of the vibrational wave function and, by inversion, also the long-range part of the molecular potential. author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Břetislav full_name: Friedrich, Břetislav last_name: Friedrich citation: ama: Lemeshko M, Friedrich B. Probing weakly bound molecules with nonresonant light. Physical Review Letters. 2009;103(5). doi:10.1103/PhysRevLett.103.053003 apa: Lemeshko, M., & Friedrich, B. (2009). Probing weakly bound molecules with nonresonant light. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.103.053003 chicago: Lemeshko, Mikhail, and Břetislav Friedrich. “Probing Weakly Bound Molecules with Nonresonant Light.” Physical Review Letters. American Physical Society, 2009. https://doi.org/10.1103/PhysRevLett.103.053003. ieee: M. Lemeshko and B. Friedrich, “Probing weakly bound molecules with nonresonant light,” Physical Review Letters, vol. 103, no. 5. American Physical Society, 2009. ista: Lemeshko M, Friedrich B. 2009. Probing weakly bound molecules with nonresonant light. Physical Review Letters. 103(5). mla: Lemeshko, Mikhail, and Břetislav Friedrich. “Probing Weakly Bound Molecules with Nonresonant Light.” Physical Review Letters, vol. 103, no. 5, American Physical Society, 2009, doi:10.1103/PhysRevLett.103.053003. short: M. Lemeshko, B. Friedrich, Physical Review Letters 103 (2009). date_created: 2018-12-11T11:56:15Z date_published: 2009-07-31T00:00:00Z date_updated: 2021-01-12T06:55:54Z day: '31' doi: 10.1103/PhysRevLett.103.053003 extern: 1 intvolume: ' 103' issue: '5' main_file_link: - open_access: '1' url: http://arxiv.org/abs/0903.0811 month: '07' oa: 1 publication: Physical Review Letters publication_status: published publisher: American Physical Society publist_id: '4782' quality_controlled: 0 status: public title: Probing weakly bound molecules with nonresonant light type: journal_article volume: 103 year: '2009' ... --- _id: '2148' abstract: - lang: eng text: Despite the growing geological evidence that fluid boiling and vapour-liquid separation affect the distribution of metals in magmatic-hydrothermal systems significantly, there are few experimental data on the chemical status and partitioning of metals in the vapour and liquid phases. Here we report on an in situ measurement, using X-ray absorption fine structure (XAFS) spectroscopy, of antimony speciation and partitioning in the system Sb2O3-H2O-NaCl-HCl at 400°C and pressures 270–300 bar corresponding to the vapour-liquid equilibrium. Experiments were performed using a spectroscopic cell which allows simultaneous determination of the total concentration and atomic environment of the absorbing element (Sb) in each phase. Results show that quantitative vapour-brine separation of a supercritical aqueous salt fluid can be achieved by a controlled decompression and monitoring the X-ray absorbance of the fluid phase. Antimony concentrations in equilibrium with Sb2O3 (cubic, senarmontite) in the coexisting vapour and liquid phases and corresponding SbIII vapour-liquid partitioning coefficients are in agreement with recent data obtained using batch-reactor solubility techniques. The XAFS spectra analysis shows that hydroxy-chloride complexes, probably Sb(OH)2Cl0, are dominant both in the vapour and liquid phase in a salt-water system at acidic conditions. This first in situ XAFS study of element fractionation between coexisting volatile and dense phases opens new possibilities for systematic investigations of vapour-brine and fluid-melt immiscibility phenomena, avoiding many experimental artifacts common in less direct techniques. author: - first_name: Gleb full_name: Pokrovski, Gleb S last_name: Pokrovski - first_name: Jacques full_name: Roux, Jacques L last_name: Roux - first_name: Jean full_name: Hazemann, Jean L last_name: Hazemann - first_name: Anastassia full_name: Borisova, Anastassia Y last_name: Borisova - first_name: Anastasia full_name: Gonchar, Anastasia A last_name: Gonchar - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 citation: ama: Pokrovski G, Roux J, Hazemann J, Borisova A, Gonchar A, Lemeshko M. In situ X-ray absorption spectroscopy measurement of vapour-brine fractionation of antimony at hydrothermal conditions. Mineralogical Magazine. 2008;72(2):667-681. doi:10.1180/minmag.2008.072.2.667 apa: Pokrovski, G., Roux, J., Hazemann, J., Borisova, A., Gonchar, A., & Lemeshko, M. (2008). In situ X-ray absorption spectroscopy measurement of vapour-brine fractionation of antimony at hydrothermal conditions. Mineralogical Magazine. Mineralogical Society. https://doi.org/10.1180/minmag.2008.072.2.667 chicago: Pokrovski, Gleb, Jacques Roux, Jean Hazemann, Anastassia Borisova, Anastasia Gonchar, and Mikhail Lemeshko. “In Situ X-Ray Absorption Spectroscopy Measurement of Vapour-Brine Fractionation of Antimony at Hydrothermal Conditions.” Mineralogical Magazine. Mineralogical Society, 2008. https://doi.org/10.1180/minmag.2008.072.2.667 . ieee: G. Pokrovski, J. Roux, J. Hazemann, A. Borisova, A. Gonchar, and M. Lemeshko, “In situ X-ray absorption spectroscopy measurement of vapour-brine fractionation of antimony at hydrothermal conditions,” Mineralogical Magazine, vol. 72, no. 2. Mineralogical Society, pp. 667–681, 2008. ista: Pokrovski G, Roux J, Hazemann J, Borisova A, Gonchar A, Lemeshko M. 2008. In situ X-ray absorption spectroscopy measurement of vapour-brine fractionation of antimony at hydrothermal conditions. Mineralogical Magazine. 72(2), 667–681. mla: Pokrovski, Gleb, et al. “In Situ X-Ray Absorption Spectroscopy Measurement of Vapour-Brine Fractionation of Antimony at Hydrothermal Conditions.” Mineralogical Magazine, vol. 72, no. 2, Mineralogical Society, 2008, pp. 667–81, doi:10.1180/minmag.2008.072.2.667 . short: G. Pokrovski, J. Roux, J. Hazemann, A. Borisova, A. Gonchar, M. Lemeshko, Mineralogical Magazine 72 (2008) 667–681. date_created: 2018-12-11T11:55:59Z date_published: 2008-04-01T00:00:00Z date_updated: 2021-01-12T06:55:36Z day: '01' doi: '10.1180/minmag.2008.072.2.667 ' extern: 1 intvolume: ' 72' issue: '2' month: '04' page: 667 - 681 publication: Mineralogical Magazine publication_status: published publisher: Mineralogical Society publist_id: '4876' quality_controlled: 0 status: public title: In situ X-ray absorption spectroscopy measurement of vapour-brine fractionation of antimony at hydrothermal conditions type: journal_article volume: 72 year: '2008' ... --- _id: '2146' abstract: - lang: eng text: 'We present an analytic model of thermal state-to-state rotationally inelastic collisions of polar molecules in electric fields. The model is based on the Fraunhofer scattering of matter waves and requires Legendre moments characterizing the “shape” of the target in the body-fixed frame as its input. The electric field orients the target in the space-fixed frame and thereby effects a striking alteration of the dynamical observables: both the phase and amplitude of the oscillations in the partial differential cross sections undergo characteristic field-dependent changes that transgress into the partial integral cross sections. As the cross sections can be evaluated for a field applied parallel or perpendicular to the relative velocity, the model also offers predictions about steric asymmetry. We exemplify the field-dependent quantum collision dynamics with the behavior of the Ne–OCS(Σ1) and Ar–NO(Π2) systems. A comparison with the close-coupling calculations available for the latter system [Chem. Phys. Lett.313, 491 (1999)] demonstrates the model’s ability to qualitatively explain the field dependence of all the scattering features observed.' author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Břetislav full_name: Friedrich, Břetislav last_name: Friedrich citation: ama: Lemeshko M, Friedrich B. An analytic model of rotationally inelastic collisions of polar molecules in electric fields. Journal of Chemical Physics. 2008;129(2). doi:10.1063/1.2948392 apa: Lemeshko, M., & Friedrich, B. (2008). An analytic model of rotationally inelastic collisions of polar molecules in electric fields. Journal of Chemical Physics. American Institute of Physics. https://doi.org/10.1063/1.2948392 chicago: Lemeshko, Mikhail, and Břetislav Friedrich. “An Analytic Model of Rotationally Inelastic Collisions of Polar Molecules in Electric Fields.” Journal of Chemical Physics. American Institute of Physics, 2008. https://doi.org/10.1063/1.2948392. ieee: M. Lemeshko and B. Friedrich, “An analytic model of rotationally inelastic collisions of polar molecules in electric fields,” Journal of Chemical Physics, vol. 129, no. 2. American Institute of Physics, 2008. ista: Lemeshko M, Friedrich B. 2008. An analytic model of rotationally inelastic collisions of polar molecules in electric fields. Journal of Chemical Physics. 129(2). mla: Lemeshko, Mikhail, and Břetislav Friedrich. “An Analytic Model of Rotationally Inelastic Collisions of Polar Molecules in Electric Fields.” Journal of Chemical Physics, vol. 129, no. 2, American Institute of Physics, 2008, doi:10.1063/1.2948392. short: M. Lemeshko, B. Friedrich, Journal of Chemical Physics 129 (2008). date_created: 2018-12-11T11:55:58Z date_published: 2008-07-01T00:00:00Z date_updated: 2021-01-12T06:55:35Z day: '01' doi: 10.1063/1.2948392 extern: 1 intvolume: ' 129' issue: '2' main_file_link: - open_access: '1' url: http://arxiv.org/abs/0804.3318 month: '07' oa: 1 publication: Journal of Chemical Physics publication_status: published publisher: American Institute of Physics publist_id: '4878' quality_controlled: 0 status: public title: An analytic model of rotationally inelastic collisions of polar molecules in electric fields type: journal_article volume: 129 year: '2008' ... --- _id: '2147' abstract: - lang: eng text: 'We present the physics of the quantum Zeno effect, whose gist is often expressed by invoking the adage "a watched pot never boils". We review aspects of the theoretical and experimental work done on the effect since its inception in 1977, and mention some applications. We dedicate the article - with our very best wishes - to Rudolf Zahradnik at the occasion of his great jubilee. Perhaps Rudolf''s lasting youthfulness and freshness are due to that he himself had been frequently observed throughout his life: until the political turn-around in 1989 by those who wished, by their surveillance, to prevent Rudolf from spoiling the youth by his personal culture and his passion for science and things beautiful and useful in general. This attempt had failed. Out of gratitude, the youth has infected Rudolf with its youthfulness. Chronically. Since 1989, Rudolf has been closely watched by the public at large. For the same traits of his as before, but with the opposite goal and for the benefit of all generations. We relish keeping him in sight...' author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Břetislav full_name: Friedrich, Břetislav last_name: Friedrich citation: ama: Lemeshko M, Friedrich B. Kvantový Zenonův jev aneb co nesejde z očí, nezestárne. Chemicke Listy. 2008;102(10):880-883. apa: Lemeshko, M., & Friedrich, B. (2008). Kvantový Zenonův jev aneb co nesejde z očí, nezestárne. Chemicke Listy. Czech Society of Chemical Engineering. chicago: Lemeshko, Mikhail, and Břetislav Friedrich. “Kvantový Zenonův Jev Aneb Co Nesejde z Očí, Nezestárne.” Chemicke Listy. Czech Society of Chemical Engineering, 2008. ieee: M. Lemeshko and B. Friedrich, “Kvantový Zenonův jev aneb co nesejde z očí, nezestárne,” Chemicke Listy, vol. 102, no. 10. Czech Society of Chemical Engineering, pp. 880–883, 2008. ista: Lemeshko M, Friedrich B. 2008. Kvantový Zenonův jev aneb co nesejde z očí, nezestárne. Chemicke Listy. 102(10), 880–883. mla: Lemeshko, Mikhail, and Břetislav Friedrich. “Kvantový Zenonův Jev Aneb Co Nesejde z Očí, Nezestárne.” Chemicke Listy, vol. 102, no. 10, Czech Society of Chemical Engineering, 2008, pp. 880–83. short: M. Lemeshko, B. Friedrich, Chemicke Listy 102 (2008) 880–883. date_created: 2018-12-11T11:55:59Z date_published: 2008-10-01T00:00:00Z date_updated: 2020-07-14T12:45:29Z day: '01' extern: 1 intvolume: ' 102' issue: '10' month: '10' page: 880 - 883 publication: Chemicke Listy publication_status: published publisher: Czech Society of Chemical Engineering publist_id: '4877' quality_controlled: 0 status: public title: Kvantový Zenonův jev aneb co nesejde z očí, nezestárne type: review volume: 102 year: '2008' ... --- _id: '2135' abstract: - lang: eng text: We use the x-ray absorption fine structure spectroscopy at Nb K edge to reveal the local atomic structure of KxNa1−xNbO3 (PSN) solid solutions. The study is performed over the temperature range 10–1023K for six different x values. We show that only the combined analysis of extended x-ray absorption fine structure and preedge fine structure provides complete and reliable information about the local structure of NbO6 octahedra. Such extensive treatment of the experimental data shows that the local structure of PSN could be described within the spherical model proposed earlier as a hypothesis for perovskite-type ferroelectric zirconates. We reveal that the Nb atoms are localized near their average positions on the sphere surfaces for all temperatures and x values. With regard to previous results we point out the features of microscopic structure common for PSN and perovskite-type zirconates. acknowledgement: This work was partially supported by Russian Foundation for Basic Research Grant No. 07-02-00796a. The authors are indebted to the French Government for financial support of E.S.N. and M.P.L. within the CNOUS program. author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Elena full_name: Nazarenko, Elena S last_name: Nazarenko - first_name: A.A full_name: Gonchar, A.A last_name: Gonchar - first_name: Larisa full_name: Reznichenko, Larisa A last_name: Reznichenko - first_name: Tatiana full_name: Nedoseykina, Tatiana I last_name: Nedoseykina - first_name: Alexander full_name: Novakovich, Alexander A last_name: Novakovich - first_name: Olivier full_name: Mathon, Olivier last_name: Mathon - first_name: Yves full_name: Joly, Yves last_name: Joly - first_name: Rostislav full_name: Vedrinskiǐ, Rostislav V last_name: Vedrinskiǐ citation: ama: Lemeshko M, Nazarenko E, Gonchar A., et al. EXAFS studies of the local atomic structure of the lead-free piezoelectric ceramics KxNa1−xNbO3 over the temperature range 10–1023K. Physical Review B - Condensed Matter and Materials Physics. 2007;76. doi:http://dx.doi.org/10.1103/PhysRevB.76.134106 apa: Lemeshko, M., Nazarenko, E., Gonchar, A. ., Reznichenko, L., Nedoseykina, T., Novakovich, A., … Vedrinskiǐ, R. (2007). EXAFS studies of the local atomic structure of the lead-free piezoelectric ceramics KxNa1−xNbO3 over the temperature range 10–1023K. Physical Review B - Condensed Matter and Materials Physics. American Physical Society. http://dx.doi.org/10.1103/PhysRevB.76.134106 chicago: Lemeshko, Mikhail, Elena Nazarenko, A.A Gonchar, Larisa Reznichenko, Tatiana Nedoseykina, Alexander Novakovich, Olivier Mathon, Yves Joly, and Rostislav Vedrinskiǐ. “EXAFS Studies of the Local Atomic Structure of the Lead-Free Piezoelectric Ceramics KxNa1−xNbO3 over the Temperature Range 10–1023K.” Physical Review B - Condensed Matter and Materials Physics. American Physical Society, 2007. http://dx.doi.org/10.1103/PhysRevB.76.134106. ieee: M. Lemeshko et al., “EXAFS studies of the local atomic structure of the lead-free piezoelectric ceramics KxNa1−xNbO3 over the temperature range 10–1023K,” Physical Review B - Condensed Matter and Materials Physics, vol. 76. American Physical Society, 2007. ista: Lemeshko M, Nazarenko E, Gonchar A., Reznichenko L, Nedoseykina T, Novakovich A, Mathon O, Joly Y, Vedrinskiǐ R. 2007. EXAFS studies of the local atomic structure of the lead-free piezoelectric ceramics KxNa1−xNbO3 over the temperature range 10–1023K. Physical Review B - Condensed Matter and Materials Physics. 76. mla: Lemeshko, Mikhail, et al. “EXAFS Studies of the Local Atomic Structure of the Lead-Free Piezoelectric Ceramics KxNa1−xNbO3 over the Temperature Range 10–1023K.” Physical Review B - Condensed Matter and Materials Physics, vol. 76, American Physical Society, 2007, doi:http://dx.doi.org/10.1103/PhysRevB.76.134106. short: M. Lemeshko, E. Nazarenko, A.. Gonchar, L. Reznichenko, T. Nedoseykina, A. Novakovich, O. Mathon, Y. Joly, R. Vedrinskiǐ, Physical Review B - Condensed Matter and Materials Physics 76 (2007). date_created: 2018-12-11T11:55:54Z date_published: 2007-10-09T00:00:00Z date_updated: 2021-01-12T06:55:31Z day: '09' doi: http://dx.doi.org/10.1103/PhysRevB.76.134106 extern: 1 intvolume: ' 76' month: '10' publication: Physical Review B - Condensed Matter and Materials Physics publication_status: published publisher: American Physical Society publist_id: '4899' quality_controlled: 0 status: public title: EXAFS studies of the local atomic structure of the lead-free piezoelectric ceramics KxNa1−xNbO3 over the temperature range 10–1023K type: journal_article volume: 76 year: '2007' ... --- _id: '2143' abstract: - lang: eng text: 'Local atomic structure of the piezoelectric ceramics KxNa 1-xNbO3 (x≤0.00, 0.05, 0.30, 0.40, 0.50 and 0.65) is studied in all phase regions (10 K-1023 K) using Nb K-edge extended X-ray absorption fine-structure (EXAFS) spectroscopy. We have shown the validity of a new spherical model for phase transitions on the basis of both fitting of EXAFS signal in the R-space and differential EXAFS analysis. Within this model the Nb atoms are located on the surfaces of small spheres of constant radii surrounding centers of NbO6 octahedrons in all phases. The distribution of the Nb atom on this surface changes during phase transitions. Besides, the analysis of local structure reveals that the geometry of NbO6 octahedra does not depend on the x value at each temperature, whereas the octahedra rotation angles do. ' author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Elena full_name: Nazarenko, Elena S last_name: Nazarenko - first_name: Anastasia full_name: Gonchar, Anastasia A last_name: Gonchar - first_name: Larisa full_name: Reznichenko, Larisa A last_name: Reznichenko - first_name: Olivier full_name: Mathon, Olivier last_name: Mathon - first_name: Yves full_name: Joly, Yves last_name: Joly - first_name: Rostislav full_name: Vedrinskiǐ, Rostislav V last_name: Vedrinskiǐ citation: ama: 'Lemeshko M, Nazarenko E, Gonchar A, et al. Phase transitions in lead-free piezoelectric ceramics: Study of local atomic structure. EPL. 2007;77(2). doi:10.1209/0295-5075/77/26003 ' apa: 'Lemeshko, M., Nazarenko, E., Gonchar, A., Reznichenko, L., Mathon, O., Joly, Y., & Vedrinskiǐ, R. (2007). Phase transitions in lead-free piezoelectric ceramics: Study of local atomic structure. EPL. IOP Publishing Ltd. https://doi.org/10.1209/0295-5075/77/26003 ' chicago: 'Lemeshko, Mikhail, Elena Nazarenko, Anastasia Gonchar, Larisa Reznichenko, Olivier Mathon, Yves Joly, and Rostislav Vedrinskiǐ. “Phase Transitions in Lead-Free Piezoelectric Ceramics: Study of Local Atomic Structure.” EPL. IOP Publishing Ltd., 2007. https://doi.org/10.1209/0295-5075/77/26003 .' ieee: 'M. Lemeshko et al., “Phase transitions in lead-free piezoelectric ceramics: Study of local atomic structure,” EPL, vol. 77, no. 2. IOP Publishing Ltd., 2007.' ista: 'Lemeshko M, Nazarenko E, Gonchar A, Reznichenko L, Mathon O, Joly Y, Vedrinskiǐ R. 2007. Phase transitions in lead-free piezoelectric ceramics: Study of local atomic structure. EPL. 77(2).' mla: 'Lemeshko, Mikhail, et al. “Phase Transitions in Lead-Free Piezoelectric Ceramics: Study of Local Atomic Structure.” EPL, vol. 77, no. 2, IOP Publishing Ltd., 2007, doi:10.1209/0295-5075/77/26003 .' short: M. Lemeshko, E. Nazarenko, A. Gonchar, L. Reznichenko, O. Mathon, Y. Joly, R. Vedrinskiǐ, EPL 77 (2007). date_created: 2018-12-11T11:55:57Z date_published: 2007-01-11T00:00:00Z date_updated: 2021-01-12T06:55:34Z day: '11' doi: '10.1209/0295-5075/77/26003 ' extern: 1 intvolume: ' 77' issue: '2' month: '01' publication: EPL publication_status: published publisher: IOP Publishing Ltd. publist_id: '4880' quality_controlled: 0 status: public title: 'Phase transitions in lead-free piezoelectric ceramics: Study of local atomic structure' type: journal_article volume: 77 year: '2007' ... --- _id: '2145' abstract: - lang: eng text: 'We use the x-ray absorption fine structure spectroscopy at Nb K edge to reveal the local atomic structure of Kx Na1-x Nb O3 (PSN) solid solutions. The study is performed over the temperature range 10-1023 K for six different x values. We show that only the combined analysis of extended x-ray absorption fine structure and preedge fine structure provides complete and reliable information about the local structure of Nb O6 octahedra. Such extensive treatment of the experimental data shows that the local structure of PSN could be described within the spherical model proposed earlier as a hypothesis for perovskite-type ferroelectric zirconates. We reveal that the Nb atoms are localized near their average positions on the sphere surfaces for all temperatures and x values. With regard to previous results we point out the features of microscopic structure common for PSN and perovskite-type zirconates. ' acknowledgement: This work was partially supported by Russian Foundation for Basic Research Grant No. 07-02-00796a author: - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Elena full_name: Nazarenko, Elena S last_name: Nazarenko - first_name: Anastasia full_name: Gonchar, Anastasia A last_name: Gonchar - first_name: Larisa full_name: Reznichenko, Larisa A last_name: Reznichenko - first_name: Tatiana full_name: Nedoseykina, Tatiana I last_name: Nedoseykina - first_name: Alexander full_name: Novakovich, Alexander A last_name: Novakovich - first_name: Olivier full_name: Mathon, Olivier last_name: Mathon - first_name: Yves full_name: Joly, Yves last_name: Joly - first_name: Rostislav full_name: Vedrinskiǐ, Rostislav V last_name: Vedrinskiǐ citation: ama: Lemeshko M, Nazarenko E, Gonchar A, et al. EXAFS studies of the local atomic structure of the lead free piezoelectric ceramics Kx Na1-x Nb O3 over the temperature range 10-1023 K. Physical Review B - Condensed Matter and Materials Physics. 2007;76(13). doi:10.1103/PhysRevB.76.134106 apa: Lemeshko, M., Nazarenko, E., Gonchar, A., Reznichenko, L., Nedoseykina, T., Novakovich, A., … Vedrinskiǐ, R. (2007). EXAFS studies of the local atomic structure of the lead free piezoelectric ceramics Kx Na1-x Nb O3 over the temperature range 10-1023 K. Physical Review B - Condensed Matter and Materials Physics. American Physical Society. https://doi.org/10.1103/PhysRevB.76.134106 chicago: Lemeshko, Mikhail, Elena Nazarenko, Anastasia Gonchar, Larisa Reznichenko, Tatiana Nedoseykina, Alexander Novakovich, Olivier Mathon, Yves Joly, and Rostislav Vedrinskiǐ. “EXAFS Studies of the Local Atomic Structure of the Lead Free Piezoelectric Ceramics Kx Na1-x Nb O3 over the Temperature Range 10-1023 K.” Physical Review B - Condensed Matter and Materials Physics. American Physical Society, 2007. https://doi.org/10.1103/PhysRevB.76.134106. ieee: M. Lemeshko et al., “EXAFS studies of the local atomic structure of the lead free piezoelectric ceramics Kx Na1-x Nb O3 over the temperature range 10-1023 K,” Physical Review B - Condensed Matter and Materials Physics, vol. 76, no. 13. American Physical Society, 2007. ista: Lemeshko M, Nazarenko E, Gonchar A, Reznichenko L, Nedoseykina T, Novakovich A, Mathon O, Joly Y, Vedrinskiǐ R. 2007. EXAFS studies of the local atomic structure of the lead free piezoelectric ceramics Kx Na1-x Nb O3 over the temperature range 10-1023 K. Physical Review B - Condensed Matter and Materials Physics. 76(13). mla: Lemeshko, Mikhail, et al. “EXAFS Studies of the Local Atomic Structure of the Lead Free Piezoelectric Ceramics Kx Na1-x Nb O3 over the Temperature Range 10-1023 K.” Physical Review B - Condensed Matter and Materials Physics, vol. 76, no. 13, American Physical Society, 2007, doi:10.1103/PhysRevB.76.134106. short: M. Lemeshko, E. Nazarenko, A. Gonchar, L. Reznichenko, T. Nedoseykina, A. Novakovich, O. Mathon, Y. Joly, R. Vedrinskiǐ, Physical Review B - Condensed Matter and Materials Physics 76 (2007). date_created: 2018-12-11T11:55:58Z date_published: 2007-10-09T00:00:00Z date_updated: 2021-01-12T06:55:35Z day: '09' doi: 10.1103/PhysRevB.76.134106 extern: 1 intvolume: ' 76' issue: '13' month: '10' publication: Physical Review B - Condensed Matter and Materials Physics publication_status: published publisher: American Physical Society publist_id: '4879' quality_controlled: 0 status: public title: EXAFS studies of the local atomic structure of the lead free piezoelectric ceramics Kx Na1-x Nb O3 over the temperature range 10-1023 K type: journal_article volume: 76 year: '2007' ... --- _id: '2134' abstract: - lang: eng text: Predissociation of the N+2 C 2Σ+u(v') vibrational levels with v' ≥ 3 was observed via dispersed C 2Σ+u → X 2Σ+g fluorescence in the spectral range of 165–208 nm after resonant 1s−1π*(vr) excitation of N2 and its subsequent autoionization into the N+2 C state. This range is dominated by lines in atomic nitrogen, by overlapped C 2Σ+u(v') → X 2Σ+g(v'') vibrational band sequences with Δv = const and broad unresolved band systems (D, (2))2Πg(v') → A2Πu(v'') in the N+2 molecular ion. With very high fluorescence resolution of about 0.1 nm FWHM individual C 2Σ+u(v') → X 2Σ+g(v'') vibrational bands have been resolved. Calculation of the observed fluorescence spectra by taking into account predissociation and molecular rotation describes well the shape of both individual vibrational bands C 2Σ+u(v') → X 2Σ+g(v'') and the whole band system. acknowledgement: This work has been supported by the Deutsche Forschungsgemeinschaft (DFG) and by the Bundesministerium für Bildung und Forschung (BMBF) (Förderkennzeichen 05 ES3XBA/5 and IB/DLR RUS 02/037). The cooperation between the groups at the universities of Kaiserslautern and Rostov-on-Don was supported by the Alexander-von-Humboldt Foundation within the framework of an institute partnership with funds from BMBF author: - first_name: Arno full_name: Ehresmann, Arno last_name: Ehresmann - first_name: Lutz full_name: Werner, Lutz last_name: Werner - first_name: Stefan full_name: Klumpp, Stefan last_name: Klumpp - first_name: Ph full_name: Demekhin, Ph V last_name: Demekhin - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: V. full_name: Sukhorukov, V. L last_name: Sukhorukov - first_name: Karl full_name: Schartner, Karl H last_name: Schartner - first_name: Hans full_name: Schmoranzer, Hans P last_name: Schmoranzer citation: ama: 'Ehresmann A, Werner L, Klumpp S, et al. Predissociation of the N+2(C 2Σ+u) state observed via C 2Σ+u → X 2Σ+g fluorescence after resonant 1s−1π* excitation of N2 molecule. Journal of Physics B: Atomic, Molecular and Optical Physics. 2006;39(6):L119-L126. doi:10.1088/0953-4075/39/6/L03' apa: 'Ehresmann, A., Werner, L., Klumpp, S., Demekhin, P., Lemeshko, M., Sukhorukov, V., … Schmoranzer, H. (2006). Predissociation of the N+2(C 2Σ+u) state observed via C 2Σ+u → X 2Σ+g fluorescence after resonant 1s−1π* excitation of N2 molecule. Journal of Physics B: Atomic, Molecular and Optical Physics. IOP Publishing Ltd. https://doi.org/10.1088/0953-4075/39/6/L03' chicago: 'Ehresmann, Arno, Lutz Werner, Stefan Klumpp, Ph Demekhin, Mikhail Lemeshko, V. Sukhorukov, Karl Schartner, and Hans Schmoranzer. “Predissociation of the N+2(C 2Σ+u) State Observed via C 2Σ+u → X 2Σ+g Fluorescence after Resonant 1s−1π* Excitation of N2 Molecule.” Journal of Physics B: Atomic, Molecular and Optical Physics. IOP Publishing Ltd., 2006. https://doi.org/10.1088/0953-4075/39/6/L03.' ieee: 'A. Ehresmann et al., “Predissociation of the N+2(C 2Σ+u) state observed via C 2Σ+u → X 2Σ+g fluorescence after resonant 1s−1π* excitation of N2 molecule,” Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 39, no. 6. IOP Publishing Ltd., pp. L119–L126, 2006.' ista: 'Ehresmann A, Werner L, Klumpp S, Demekhin P, Lemeshko M, Sukhorukov V, Schartner K, Schmoranzer H. 2006. Predissociation of the N+2(C 2Σ+u) state observed via C 2Σ+u → X 2Σ+g fluorescence after resonant 1s−1π* excitation of N2 molecule. Journal of Physics B: Atomic, Molecular and Optical Physics. 39(6), L119–L126.' mla: 'Ehresmann, Arno, et al. “Predissociation of the N+2(C 2Σ+u) State Observed via C 2Σ+u → X 2Σ+g Fluorescence after Resonant 1s−1π* Excitation of N2 Molecule.” Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 39, no. 6, IOP Publishing Ltd., 2006, pp. L119–26, doi:10.1088/0953-4075/39/6/L03.' short: 'A. Ehresmann, L. Werner, S. Klumpp, P. Demekhin, M. Lemeshko, V. Sukhorukov, K. Schartner, H. Schmoranzer, Journal of Physics B: Atomic, Molecular and Optical Physics 39 (2006) L119–L126.' date_created: 2018-12-11T11:55:54Z date_published: 2006-03-28T00:00:00Z date_updated: 2021-01-12T06:55:31Z day: '28' doi: 10.1088/0953-4075/39/6/L03 extern: 1 intvolume: ' 39' issue: '6' month: '03' page: L119 - L126 publication: 'Journal of Physics B: Atomic, Molecular and Optical Physics' publication_status: published publisher: IOP Publishing Ltd. publist_id: '4900' quality_controlled: 0 status: public title: Predissociation of the N+2(C 2Σ+u) state observed via C 2Σ+u → X 2Σ+g fluorescence after resonant 1s−1π* excitation of N2 molecule type: journal_article volume: 39 year: '2006' ... --- _id: '2144' abstract: - lang: eng text: 'Temperature dependent preedge and extended x-ray absorption fine structure measurements at the Zr K edge for the perovskite-type zirconates Pb Zr0.515 Ti0.485 O3 (PZT), PbZr O3 (PZ), and BaZr O3 are performed. To carry out a more accurate study of the weak reconstruction of the local atomic structure we employed a combination of two techniques: (i) analysis of the preedge fine structure, and (ii) analysis of the Fourier transform of the difference between χ (k) functions obtained at different temperatures. A detailed investigation of local atomic structure in the cubic phase for all the crystals is also performed. It is shown that neither the displacive nor the order-disorder model can describe correctly the changes of local atomic structure during phase transitions in PZ and PZT. A spherical model describing the local atomic structure of perovskite-type crystals suffering structural phase transitions is proposed.' acknowledgement: The studies were supported by the Russian Ministry of Science and Education Grant No. R662. E.N. acknowledges partial support from the French Government *CNOUS. author: - first_name: Rostislav full_name: Vedrinskiǐ, Rostislav V last_name: Vedrinskiǐ - first_name: Elena full_name: Nazarenko, Elena S last_name: Nazarenko - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Vivian full_name: Nassif, Vivian M last_name: Nassif - first_name: Olivier full_name: Proux, Olivier last_name: Proux - first_name: Alexander full_name: Novakovich, Alexander A last_name: Novakovich - first_name: Yves full_name: Joly, Yves last_name: Joly citation: ama: Vedrinskiǐ R, Nazarenko E, Lemeshko M, et al. Temperature dependent XAFS studies of local atomic structure of the perovskite-type zirconates. Physical Review B - Condensed Matter and Materials Physics. 2006;73(13). doi:10.1103/PhysRevB.73.134109 apa: Vedrinskiǐ, R., Nazarenko, E., Lemeshko, M., Nassif, V., Proux, O., Novakovich, A., & Joly, Y. (2006). Temperature dependent XAFS studies of local atomic structure of the perovskite-type zirconates. Physical Review B - Condensed Matter and Materials Physics. American Physical Society. https://doi.org/10.1103/PhysRevB.73.134109 chicago: Vedrinskiǐ, Rostislav, Elena Nazarenko, Mikhail Lemeshko, Vivian Nassif, Olivier Proux, Alexander Novakovich, and Yves Joly. “Temperature Dependent XAFS Studies of Local Atomic Structure of the Perovskite-Type Zirconates.” Physical Review B - Condensed Matter and Materials Physics. American Physical Society, 2006. https://doi.org/10.1103/PhysRevB.73.134109. ieee: R. Vedrinskiǐ et al., “Temperature dependent XAFS studies of local atomic structure of the perovskite-type zirconates,” Physical Review B - Condensed Matter and Materials Physics, vol. 73, no. 13. American Physical Society, 2006. ista: Vedrinskiǐ R, Nazarenko E, Lemeshko M, Nassif V, Proux O, Novakovich A, Joly Y. 2006. Temperature dependent XAFS studies of local atomic structure of the perovskite-type zirconates. Physical Review B - Condensed Matter and Materials Physics. 73(13). mla: Vedrinskiǐ, Rostislav, et al. “Temperature Dependent XAFS Studies of Local Atomic Structure of the Perovskite-Type Zirconates.” Physical Review B - Condensed Matter and Materials Physics, vol. 73, no. 13, American Physical Society, 2006, doi:10.1103/PhysRevB.73.134109. short: R. Vedrinskiǐ, E. Nazarenko, M. Lemeshko, V. Nassif, O. Proux, A. Novakovich, Y. Joly, Physical Review B - Condensed Matter and Materials Physics 73 (2006). date_created: 2018-12-11T11:55:58Z date_published: 2006-04-17T00:00:00Z date_updated: 2021-01-12T06:55:34Z day: '17' doi: 10.1103/PhysRevB.73.134109 extern: 1 intvolume: ' 73' issue: '13' month: '04' publication: Physical Review B - Condensed Matter and Materials Physics publication_status: published publisher: American Physical Society publist_id: '4881' quality_controlled: 0 status: public title: Temperature dependent XAFS studies of local atomic structure of the perovskite-type zirconates type: journal_article volume: 73 year: '2006' ... --- _id: '2142' abstract: - lang: eng text: Fluorescence from fragments formed after the de-excitation of the N*2(1s−1π*) resonance has been measured in the spectral range of 135–190 nm. This range is dominated by lines in atomic nitrogen and lines formed by overlapping C2Σ+u(v') → X2Σ+g(v'') bands with Δv = const in the N+2 molecular ion which result from the spectator Auger decays of the N*2(1s−1π*(vr)) resonances. Ab initio calculations of the corresponding potential curves and transition probabilities showed that the observed irregular intensity dependence of the C2Σ+u(v') → X2Σ+g(v'')(Δv = const) fluorescence lines on the vibrational quantum number vr is due to transitions between vibrational levels during the reaction N2(v0 = 0)→ N*2(1s−1π*(vr)) Longrightarrow C2Σ+u(v') → X2Σ+g(v''). author: - first_name: Arno full_name: Ehresmann, Arno last_name: Ehresmann - first_name: Lutz full_name: Werner, Lutz last_name: Werner - first_name: Stefan full_name: Klumpp, Stefan last_name: Klumpp - first_name: S full_name: Lucht, S last_name: Lucht - first_name: Hans full_name: Schmoranzer, Hans P last_name: Schmoranzer - first_name: Sascha full_name: Mickat, Sascha last_name: Mickat - first_name: Rüdiger full_name: Schill, Rüdiger H last_name: Schill - first_name: Karl full_name: Schartner, Karl H last_name: Schartner - first_name: Philipp full_name: Demekhin, Philipp last_name: Demekhin - first_name: Mikhail full_name: Mikhail Lemeshko id: 37CB05FA-F248-11E8-B48F-1D18A9856A87 last_name: Lemeshko orcid: 0000-0002-6990-7802 - first_name: Victor full_name: Sukhorukov, Victor L last_name: Sukhorukov citation: ama: 'Ehresmann A, Werner L, Klumpp S, et al. Studying the N+2(C2Σ+u → X2Σ+g) fluorescence excited via the 1s−1π* resonance. Journal of Physics B: Atomic, Molecular and Optical Physics. 2006;39(2):283-304. doi:10.1088/0953-4075/39/2/006' apa: 'Ehresmann, A., Werner, L., Klumpp, S., Lucht, S., Schmoranzer, H., Mickat, S., … Sukhorukov, V. (2006). Studying the N+2(C2Σ+u → X2Σ+g) fluorescence excited via the 1s−1π* resonance. Journal of Physics B: Atomic, Molecular and Optical Physics. IOP Publishing Ltd. https://doi.org/10.1088/0953-4075/39/2/006' chicago: 'Ehresmann, Arno, Lutz Werner, Stefan Klumpp, S Lucht, Hans Schmoranzer, Sascha Mickat, Rüdiger Schill, et al. “Studying the N+2(C2Σ+u → X2Σ+g) Fluorescence Excited via the 1s−1π* Resonance.” Journal of Physics B: Atomic, Molecular and Optical Physics. IOP Publishing Ltd., 2006. https://doi.org/10.1088/0953-4075/39/2/006.' ieee: 'A. Ehresmann et al., “Studying the N+2(C2Σ+u → X2Σ+g) fluorescence excited via the 1s−1π* resonance,” Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 39, no. 2. IOP Publishing Ltd., pp. 283–304, 2006.' ista: 'Ehresmann A, Werner L, Klumpp S, Lucht S, Schmoranzer H, Mickat S, Schill R, Schartner K, Demekhin P, Lemeshko M, Sukhorukov V. 2006. Studying the N+2(C2Σ+u → X2Σ+g) fluorescence excited via the 1s−1π* resonance. Journal of Physics B: Atomic, Molecular and Optical Physics. 39(2), 283–304.' mla: 'Ehresmann, Arno, et al. “Studying the N+2(C2Σ+u → X2Σ+g) Fluorescence Excited via the 1s−1π* Resonance.” Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 39, no. 2, IOP Publishing Ltd., 2006, pp. 283–304, doi:10.1088/0953-4075/39/2/006.' short: 'A. Ehresmann, L. Werner, S. Klumpp, S. Lucht, H. Schmoranzer, S. Mickat, R. Schill, K. Schartner, P. Demekhin, M. Lemeshko, V. Sukhorukov, Journal of Physics B: Atomic, Molecular and Optical Physics 39 (2006) 283–304.' date_created: 2018-12-11T11:55:57Z date_published: 2006-01-28T00:00:00Z date_updated: 2021-01-12T06:55:34Z day: '28' doi: 10.1088/0953-4075/39/2/006 extern: 1 intvolume: ' 39' issue: '2' month: '01' page: 283 - 304 publication: 'Journal of Physics B: Atomic, Molecular and Optical Physics' publication_status: published publisher: IOP Publishing Ltd. publist_id: '4882' quality_controlled: 0 status: public title: Studying the N+2(C2Σ+u → X2Σ+g) fluorescence excited via the 1s−1π* resonance type: journal_article volume: 39 year: '2006' ...