[{"department":[{"_id":"MiLe"}],"date_updated":"2024-10-09T20:59:03Z","language":[{"iso":"eng"}],"arxiv":1,"oa":1,"author":[{"first_name":"C.H.","full_name":"Schmickler, C.H.","last_name":"Schmickler"},{"full_name":"Hammer, H.-W.","first_name":"H.-W.","last_name":"Hammer"},{"last_name":"Volosniev","full_name":"Volosniev, Artem","first_name":"Artem","orcid":"0000-0003-0393-5525","id":"37D278BC-F248-11E8-B48F-1D18A9856A87"}],"ddc":["530"],"isi":1,"article_type":"original","intvolume":"       798","external_id":{"isi":["000494939000086"],"arxiv":["1904.00913"]},"corr_author":"1","fulldoi":"https://doi.org/10.1016/j.physletb.2019.135016","citation":{"apa":"Schmickler, C. H., Hammer, H.-W., &#38; Volosniev, A. (2019). Universal physics of bound states of a few charged particles. <i>Physics Letters B</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.physletb.2019.135016\">https://doi.org/10.1016/j.physletb.2019.135016</a>","ama":"Schmickler CH, Hammer H-W, Volosniev A. Universal physics of bound states of a few charged particles. <i>Physics Letters B</i>. 2019;798. doi:<a href=\"https://doi.org/10.1016/j.physletb.2019.135016\">10.1016/j.physletb.2019.135016</a>","ieee":"C. H. Schmickler, H.-W. Hammer, and A. Volosniev, “Universal physics of bound states of a few charged particles,” <i>Physics Letters B</i>, vol. 798. Elsevier, 2019.","ista":"Schmickler CH, Hammer H-W, Volosniev A. 2019. Universal physics of bound states of a few charged particles. Physics Letters B. 798, 135016.","mla":"Schmickler, C. H., et al. “Universal Physics of Bound States of a Few Charged Particles.” <i>Physics Letters B</i>, vol. 798, 135016, Elsevier, 2019, doi:<a href=\"https://doi.org/10.1016/j.physletb.2019.135016\">10.1016/j.physletb.2019.135016</a>.","chicago":"Schmickler, C.H., H.-W. Hammer, and Artem Volosniev. “Universal Physics of Bound States of a Few Charged Particles.” <i>Physics Letters B</i>. Elsevier, 2019. <a href=\"https://doi.org/10.1016/j.physletb.2019.135016\">https://doi.org/10.1016/j.physletb.2019.135016</a>.","short":"C.H. Schmickler, H.-W. Hammer, A. Volosniev, Physics Letters B 798 (2019)."},"date_created":"2019-10-18T18:33:32Z","publisher":"Elsevier","tmp":{"short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"file":[{"creator":"dernst","access_level":"open_access","date_updated":"2020-07-14T12:47:46Z","checksum":"d27f983b34ea7dafdf356afbf9472fbf","file_id":"6974","file_name":"2019_PhysicsLettersB_Schmickler.pdf","file_size":528362,"relation":"main_file","content_type":"application/pdf","date_created":"2019-10-25T12:47:04Z"}],"year":"2019","_id":"6955","article_number":"135016","status":"public","type":"journal_article","date_published":"2019-11-10T00:00:00Z","title":"Universal physics of bound states of a few charged particles","scopus_import":"1","doi":"10.1016/j.physletb.2019.135016","day":"10","publication":"Physics Letters B","file_date_updated":"2020-07-14T12:47:46Z","volume":798,"abstract":[{"text":"We study few-body bound states of charged particles subject to attractive zero-range/short-range plus repulsive Coulomb interparticle forces. The characteristic length scales of the system at zero energy are set by the Coulomb length scale D and the Coulomb-modified effective range r eff. We study shallow bound states of charged particles with D >> r eff and show that these systems obey universal scaling laws different from neutral particles. An accurate description of these states requires both the Coulomb-modified scattering length and the effective range unless the Coulomb interaction is very weak (D -> ). Our findings are relevant for bound states whose spatial extent is significantly larger than the range of the attractive potential. These states enjoy universality – their character is independent of the shape of the short-range potential.","lang":"eng"}],"oa_version":"Published Version","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","publication_status":"published","quality_controlled":"1","month":"11","publication_identifier":{"issn":["0370-2693"]},"article_processing_charge":"No","has_accepted_license":"1"},{"title":"In-medium bound states of two bosonic impurities in a one-dimensional Fermi gas","scopus_import":"1","article_number":"033177","_id":"7190","year":"2019","file":[{"access_level":"open_access","date_updated":"2020-07-14T12:47:52Z","checksum":"382eb67e62a77052a23887332d363f96","file_name":"2019_PhysRevResearch_Huber.pdf","file_id":"7193","file_size":1370022,"creator":"dernst","content_type":"application/pdf","date_created":"2019-12-18T07:13:14Z","relation":"main_file"}],"type":"journal_article","status":"public","date_published":"2019-12-16T00:00:00Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","project":[{"grant_number":"754411","call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships","_id":"260C2330-B435-11E9-9278-68D0E5697425"}],"publication_status":"published","month":"12","quality_controlled":"1","has_accepted_license":"1","article_processing_charge":"No","publication_identifier":{"issn":["2643-1564"]},"doi":"10.1103/physrevresearch.1.033177","day":"16","issue":"3","volume":1,"publication":"Physical Review Research","file_date_updated":"2020-07-14T12:47:52Z","abstract":[{"lang":"eng","text":"We investigate the ground-state energy of a one-dimensional Fermi gas with two bosonic impurities. We consider spinless fermions with no fermion-fermion interactions. The fermion-impurity and impurity-impurity interactions are modeled with Dirac delta functions. First, we study the case where impurity and fermion have equal masses, and the impurity-impurity two-body interaction is identical to the fermion-impurity interaction, such that the system is solvable with the Bethe ansatz. For attractive interactions, we find that the energy of the impurity-impurity subsystem is below the energy of the bound state that exists without the Fermi gas. We interpret this as a manifestation of attractive boson-boson interactions induced by the fermionic medium, and refer to the impurity-impurity subsystem as an in-medium bound state. For repulsive interactions, we find no in-medium bound states. Second, we construct an effective model to describe these interactions, and compare its predictions to the exact solution. We use this effective model to study nonintegrable systems with unequal masses and/or potentials. We discuss parameter regimes for which impurity-impurity attraction induced by the Fermi gas can lead to the formation of in-medium bound states made of bosons that repel each other in the absence of the Fermi gas."}],"oa_version":"Published Version","ec_funded":1,"oa":1,"arxiv":1,"author":[{"last_name":"Huber","full_name":"Huber, D.","first_name":"D."},{"last_name":"Hammer","first_name":"H.-W.","full_name":"Hammer, H.-W."},{"id":"37D278BC-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-0393-5525","full_name":"Volosniev, Artem","first_name":"Artem","last_name":"Volosniev"}],"ddc":["530"],"language":[{"iso":"eng"}],"department":[{"_id":"MiLe"}],"date_updated":"2025-04-14T07:44:06Z","date_created":"2019-12-17T13:03:41Z","publisher":"American Physical Society","tmp":{"short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"article_type":"original","intvolume":"         1","corr_author":"1","external_id":{"arxiv":["1908.02483"]},"citation":{"ieee":"D. Huber, H.-W. Hammer, and A. Volosniev, “In-medium bound states of two bosonic impurities in a one-dimensional Fermi gas,” <i>Physical Review Research</i>, vol. 1, no. 3. American Physical Society, 2019.","ista":"Huber D, Hammer H-W, Volosniev A. 2019. In-medium bound states of two bosonic impurities in a one-dimensional Fermi gas. Physical Review Research. 1(3), 033177.","apa":"Huber, D., Hammer, H.-W., &#38; Volosniev, A. (2019). In-medium bound states of two bosonic impurities in a one-dimensional Fermi gas. <i>Physical Review Research</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevresearch.1.033177\">https://doi.org/10.1103/physrevresearch.1.033177</a>","ama":"Huber D, Hammer H-W, Volosniev A. In-medium bound states of two bosonic impurities in a one-dimensional Fermi gas. <i>Physical Review Research</i>. 2019;1(3). doi:<a href=\"https://doi.org/10.1103/physrevresearch.1.033177\">10.1103/physrevresearch.1.033177</a>","chicago":"Huber, D., H.-W. Hammer, and Artem Volosniev. “In-Medium Bound States of Two Bosonic Impurities in a One-Dimensional Fermi Gas.” <i>Physical Review Research</i>. American Physical Society, 2019. <a href=\"https://doi.org/10.1103/physrevresearch.1.033177\">https://doi.org/10.1103/physrevresearch.1.033177</a>.","short":"D. Huber, H.-W. Hammer, A. Volosniev, Physical Review Research 1 (2019).","mla":"Huber, D., et al. “In-Medium Bound States of Two Bosonic Impurities in a One-Dimensional Fermi Gas.” <i>Physical Review Research</i>, vol. 1, no. 3, 033177, American Physical Society, 2019, doi:<a href=\"https://doi.org/10.1103/physrevresearch.1.033177\">10.1103/physrevresearch.1.033177</a>."},"fulldoi":"https://doi.org/10.1103/physrevresearch.1.033177"},{"publication":"Reviews of Modern Physics","volume":91,"issue":"3","doi":"10.1103/revmodphys.91.035005","day":"18","oa_version":"Preprint","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."}],"publication_status":"published","project":[{"name":"Quantum rotations in the presence of a many-body environment","_id":"26031614-B435-11E9-9278-68D0E5697425","grant_number":"P29902","call_identifier":"FWF"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_identifier":{"eissn":["1539-0756"],"issn":["0034-6861"]},"article_processing_charge":"No","quality_controlled":"1","month":"09","year":"2019","article_number":"035005 ","_id":"7396","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1810.11338"}],"date_published":"2019-09-18T00:00:00Z","status":"public","type":"journal_article","scopus_import":"1","title":"Quantum control of molecular rotation","intvolume":"        91","isi":1,"article_type":"original","fulldoi":"https://doi.org/10.1103/revmodphys.91.035005","citation":{"ama":"Koch CP, Lemeshko M, Sugny D. Quantum control of molecular rotation. <i>Reviews of Modern Physics</i>. 2019;91(3). doi:<a href=\"https://doi.org/10.1103/revmodphys.91.035005\">10.1103/revmodphys.91.035005</a>","apa":"Koch, C. P., Lemeshko, M., &#38; Sugny, D. (2019). Quantum control of molecular rotation. <i>Reviews of Modern Physics</i>. American Physical Society. <a href=\"https://doi.org/10.1103/revmodphys.91.035005\">https://doi.org/10.1103/revmodphys.91.035005</a>","ieee":"C. P. Koch, M. Lemeshko, and D. Sugny, “Quantum control of molecular rotation,” <i>Reviews of Modern Physics</i>, 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.” <i>Reviews of Modern Physics</i>, vol. 91, no. 3, 035005, American Physical Society, 2019, doi:<a href=\"https://doi.org/10.1103/revmodphys.91.035005\">10.1103/revmodphys.91.035005</a>.","chicago":"Koch, Christiane P., Mikhail Lemeshko, and Dominique Sugny. “Quantum Control of Molecular Rotation.” <i>Reviews of Modern Physics</i>. American Physical Society, 2019. <a href=\"https://doi.org/10.1103/revmodphys.91.035005\">https://doi.org/10.1103/revmodphys.91.035005</a>.","short":"C.P. Koch, M. Lemeshko, D. Sugny, Reviews of Modern Physics 91 (2019)."},"external_id":{"arxiv":["1810.11338"],"isi":["000486661700001"]},"publisher":"American Physical Society","date_created":"2020-01-29T16:04:19Z","date_updated":"2025-04-15T07:59:29Z","department":[{"_id":"MiLe"}],"language":[{"iso":"eng"}],"arxiv":1,"oa":1,"author":[{"last_name":"Koch","first_name":"Christiane P.","full_name":"Koch, Christiane P."},{"last_name":"Lemeshko","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","full_name":"Lemeshko, Mikhail","first_name":"Mikhail","orcid":"0000-0002-6990-7802"},{"last_name":"Sugny","first_name":"Dominique","full_name":"Sugny, Dominique"}]},{"_id":"5886","year":"2019","file":[{"access_level":"open_access","checksum":"178964744b636a6f036372f4f090a657","file_id":"5896","date_updated":"2020-07-14T12:47:13Z","file_name":"2019_MolecularPhysics_Li.pdf","file_size":1309966,"creator":"dernst","content_type":"application/pdf","date_created":"2019-01-29T08:32:57Z","relation":"main_file"}],"date_published":"2019-01-18T00:00:00Z","related_material":{"record":[{"status":"public","id":"8958","relation":"dissertation_contains"}]},"type":"journal_article","status":"public","scopus_import":"1","title":"Variational approaches to quantum impurities: from the Fröhlich polaron to the angulon","file_date_updated":"2020-07-14T12:47:13Z","publication":"Molecular Physics","doi":"10.1080/00268976.2019.1567852","day":"18","das_tickbox":"1","oa_version":"Published Version","abstract":[{"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.","lang":"eng"}],"publication_status":"published","project":[{"name":"Quantum rotations in the presence of a many-body environment","_id":"26031614-B435-11E9-9278-68D0E5697425","grant_number":"P29902","call_identifier":"FWF"},{"call_identifier":"FP7","grant_number":"291734","_id":"25681D80-B435-11E9-9278-68D0E5697425","name":"International IST Postdoc Fellowship Programme"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_processing_charge":"No","has_accepted_license":"1","publication_identifier":{"issn":["0026-8976"]},"month":"01","quality_controlled":"1","department":[{"_id":"MiLe"}],"date_updated":"2026-07-07T05:31:10Z","language":[{"iso":"eng"}],"oa":1,"ec_funded":1,"ddc":["530"],"author":[{"id":"4B7E523C-F248-11E8-B48F-1D18A9856A87","first_name":"Xiang","full_name":"Li, Xiang","last_name":"Li"},{"last_name":"Bighin","orcid":"0000-0001-8823-9777","first_name":"Giacomo","full_name":"Bighin, Giacomo","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Yakaboylu","orcid":"0000-0001-5973-0874","full_name":"Yakaboylu, Enderalp","first_name":"Enderalp","id":"38CB71F6-F248-11E8-B48F-1D18A9856A87"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","first_name":"Mikhail","full_name":"Lemeshko, Mikhail","orcid":"0000-0002-6990-7802","last_name":"Lemeshko"}],"isi":1,"citation":{"mla":"Li, Xiang, et al. “Variational Approaches to Quantum Impurities: From the Fröhlich Polaron to the Angulon.” <i>Molecular Physics</i>, Taylor &#38; Francis, 2019, doi:<a href=\"https://doi.org/10.1080/00268976.2019.1567852\">10.1080/00268976.2019.1567852</a>.","chicago":"Li, Xiang, Giacomo Bighin, Enderalp Yakaboylu, and Mikhail Lemeshko. “Variational Approaches to Quantum Impurities: From the Fröhlich Polaron to the Angulon.” <i>Molecular Physics</i>. Taylor &#38; Francis, 2019. <a href=\"https://doi.org/10.1080/00268976.2019.1567852\">https://doi.org/10.1080/00268976.2019.1567852</a>.","short":"X. Li, G. Bighin, E. Yakaboylu, M. Lemeshko, Molecular Physics (2019).","ama":"Li X, Bighin G, Yakaboylu E, Lemeshko M. Variational approaches to quantum impurities: from the Fröhlich polaron to the angulon. <i>Molecular Physics</i>. 2019. doi:<a href=\"https://doi.org/10.1080/00268976.2019.1567852\">10.1080/00268976.2019.1567852</a>","apa":"Li, X., Bighin, G., Yakaboylu, E., &#38; Lemeshko, M. (2019). Variational approaches to quantum impurities: from the Fröhlich polaron to the angulon. <i>Molecular Physics</i>. Taylor &#38; Francis. <a href=\"https://doi.org/10.1080/00268976.2019.1567852\">https://doi.org/10.1080/00268976.2019.1567852</a>","ieee":"X. Li, G. Bighin, E. Yakaboylu, and M. Lemeshko, “Variational approaches to quantum impurities: from the Fröhlich polaron to the angulon,” <i>Molecular Physics</i>. Taylor &#38; 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."},"fulldoi":"https://doi.org/10.1080/00268976.2019.1567852","external_id":{"isi":["000474641400008"]},"publisher":"Taylor & Francis","date_created":"2019-01-27T22:59:10Z","tmp":{"short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"}},{"status":"public","type":"journal_article","acknowledgement":"Seventh Framework Programme (FP7) People: Marie-Curie Actions (PEOPLE) (291734). B. M. acknowledges the financial support by the People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme (FP7/ 2007-2013) under REA.","date_published":"2018-02-01T00:00:00Z","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1711.01986"}],"year":"2018","_id":"435","title":"Coherent-perfect-absorber and laser for bound states in a continuum","scopus_import":"1","abstract":[{"lang":"eng","text":"It is shown that two fundamentally different phenomena, the bound states in continuum and the spectral singularity (or time-reversed spectral singularity), can occur simultaneously. This can be achieved in a rectangular core dielectric waveguide with an embedded active (or absorbing) layer. In such a system a two-dimensional bound state in a continuum is created in the plane of a waveguide cross section, and it is emitted or absorbed along the waveguide core. The idea can be used for experimental implementation of a laser or a coherent-perfect-absorber for a photonic bound state that resides in a continuous spectrum."}],"publist_id":"7388","oa_version":"Preprint","doi":"10.1364/OL.43.000607","day":"01","publication":"Optics Letters","volume":43,"issue":"3","quality_controlled":"1","month":"02","article_processing_charge":"No","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","project":[{"call_identifier":"FP7","grant_number":"291734","_id":"25681D80-B435-11E9-9278-68D0E5697425","name":"International IST Postdoc Fellowship Programme"}],"publication_status":"published","language":[{"iso":"eng"}],"date_updated":"2025-06-03T11:21:56Z","department":[{"_id":"MiLe"}],"author":[{"last_name":"Midya","id":"456187FC-F248-11E8-B48F-1D18A9856A87","full_name":"Midya, Bikashkali","first_name":"Bikashkali"},{"first_name":"Vladimir","full_name":"Konotop, Vladimir","last_name":"Konotop"}],"ec_funded":1,"arxiv":1,"oa":1,"corr_author":"1","page":"607 - 610","external_id":{"isi":["000423776600066"],"arxiv":["1711.01986"]},"fulldoi":"https://doi.org/10.1364/OL.43.000607","citation":{"apa":"Midya, B., &#38; Konotop, V. (2018). Coherent-perfect-absorber and laser for bound states in a continuum. <i>Optics Letters</i>. Optica Publishing Group. <a href=\"https://doi.org/10.1364/OL.43.000607\">https://doi.org/10.1364/OL.43.000607</a>","ama":"Midya B, Konotop V. Coherent-perfect-absorber and laser for bound states in a continuum. <i>Optics Letters</i>. 2018;43(3):607-610. doi:<a href=\"https://doi.org/10.1364/OL.43.000607\">10.1364/OL.43.000607</a>","ieee":"B. Midya and V. Konotop, “Coherent-perfect-absorber and laser for bound states in a continuum,” <i>Optics Letters</i>, vol. 43, no. 3. Optica Publishing Group, pp. 607–610, 2018.","ista":"Midya B, Konotop V. 2018. Coherent-perfect-absorber and laser for bound states in a continuum. Optics Letters. 43(3), 607–610.","mla":"Midya, Bikashkali, and Vladimir Konotop. “Coherent-Perfect-Absorber and Laser for Bound States in a Continuum.” <i>Optics Letters</i>, vol. 43, no. 3, Optica Publishing Group, 2018, pp. 607–10, doi:<a href=\"https://doi.org/10.1364/OL.43.000607\">10.1364/OL.43.000607</a>.","short":"B. Midya, V. Konotop, Optics Letters 43 (2018) 607–610.","chicago":"Midya, Bikashkali, and Vladimir Konotop. “Coherent-Perfect-Absorber and Laser for Bound States in a Continuum.” <i>Optics Letters</i>. Optica Publishing Group, 2018. <a href=\"https://doi.org/10.1364/OL.43.000607\">https://doi.org/10.1364/OL.43.000607</a>."},"isi":1,"intvolume":"        43","date_created":"2018-12-11T11:46:27Z","publisher":"Optica Publishing Group"},{"status":"public","type":"journal_article","date_published":"2018-12-17T00:00:00Z","main_file_link":[{"url":"https://arxiv.org/abs/1809.00222","open_access":"1"}],"year":"2018","_id":"5794","article_number":"255302","title":"Quantum groups as hidden symmetries of quantum impurities","scopus_import":"1","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."}],"oa_version":"Preprint","doi":"10.1103/PhysRevLett.121.255302","day":"17","volume":121,"publication":"Physical Review Letters","issue":"25","quality_controlled":"1","month":"12","publication_identifier":{"issn":["00319007"]},"article_processing_charge":"No","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","publication_status":"published","project":[{"grant_number":"291734","call_identifier":"FP7","name":"International IST Postdoc Fellowship Programme","_id":"25681D80-B435-11E9-9278-68D0E5697425"},{"_id":"26031614-B435-11E9-9278-68D0E5697425","name":"Quantum rotations in the presence of a many-body environment","call_identifier":"FWF","grant_number":"P29902"}],"date_updated":"2025-04-15T06:50:24Z","language":[{"iso":"eng"}],"department":[{"_id":"MiLe"}],"author":[{"id":"38CB71F6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5973-0874","first_name":"Enderalp","full_name":"Yakaboylu, Enderalp","last_name":"Yakaboylu"},{"last_name":"Shkolnikov","id":"35084A62-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-4310-178X","first_name":"Mikhail","full_name":"Shkolnikov, Mikhail"},{"last_name":"Lemeshko","full_name":"Lemeshko, Mikhail","first_name":"Mikhail","orcid":"0000-0002-6990-7802","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87"}],"ec_funded":1,"oa":1,"arxiv":1,"external_id":{"arxiv":["1809.00222"],"isi":["000454178600009"]},"fulldoi":"https://doi.org/10.1103/PhysRevLett.121.255302","citation":{"mla":"Yakaboylu, Enderalp, et al. “Quantum Groups as Hidden Symmetries of Quantum Impurities.” <i>Physical Review Letters</i>, vol. 121, no. 25, 255302, American Physical Society, 2018, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.121.255302\">10.1103/PhysRevLett.121.255302</a>.","short":"E. Yakaboylu, M. Shkolnikov, M. Lemeshko, Physical Review Letters 121 (2018).","chicago":"Yakaboylu, Enderalp, Mikhail Shkolnikov, and Mikhail Lemeshko. “Quantum Groups as Hidden Symmetries of Quantum Impurities.” <i>Physical Review Letters</i>. American Physical Society, 2018. <a href=\"https://doi.org/10.1103/PhysRevLett.121.255302\">https://doi.org/10.1103/PhysRevLett.121.255302</a>.","ama":"Yakaboylu E, Shkolnikov M, Lemeshko M. Quantum groups as hidden symmetries of quantum impurities. <i>Physical Review Letters</i>. 2018;121(25). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.121.255302\">10.1103/PhysRevLett.121.255302</a>","apa":"Yakaboylu, E., Shkolnikov, M., &#38; Lemeshko, M. (2018). Quantum groups as hidden symmetries of quantum impurities. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.121.255302\">https://doi.org/10.1103/PhysRevLett.121.255302</a>","ista":"Yakaboylu E, Shkolnikov M, Lemeshko M. 2018. Quantum groups as hidden symmetries of quantum impurities. Physical Review Letters. 121(25), 255302.","ieee":"E. Yakaboylu, M. Shkolnikov, and M. Lemeshko, “Quantum groups as hidden symmetries of quantum impurities,” <i>Physical Review Letters</i>, vol. 121, no. 25. American Physical Society, 2018."},"isi":1,"article_type":"original","intvolume":"       121","date_created":"2019-01-06T22:59:12Z","publisher":"American Physical Society"},{"language":[{"iso":"eng"}],"department":[{"_id":"MiLe"},{"_id":"RoSe"}],"date_updated":"2025-04-14T07:26:59Z","arxiv":1,"oa":1,"ec_funded":1,"author":[{"id":"38CB71F6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5973-0874","full_name":"Yakaboylu, Enderalp","first_name":"Enderalp","last_name":"Yakaboylu"},{"full_name":"Midya, Bikashkali","first_name":"Bikashkali","id":"456187FC-F248-11E8-B48F-1D18A9856A87","last_name":"Midya"},{"first_name":"Andreas","full_name":"Deuchert, Andreas","orcid":"0000-0003-3146-6746","id":"4DA65CD0-F248-11E8-B48F-1D18A9856A87","last_name":"Deuchert"},{"last_name":"Leopold","orcid":"0000-0002-0495-6822","first_name":"Nikolai K","full_name":"Leopold, Nikolai K","id":"4BC40BEC-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Lemeshko","first_name":"Mikhail","full_name":"Lemeshko, Mikhail","orcid":"0000-0002-6990-7802","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87"}],"intvolume":"        98","isi":1,"citation":{"ama":"Yakaboylu E, Midya B, Deuchert A, Leopold NK, Lemeshko M. Theory of the rotating polaron: Spectrum and self-localization. <i>Physical Review B</i>. 2018;98(22). doi:<a href=\"https://doi.org/10.1103/physrevb.98.224506\">10.1103/physrevb.98.224506</a>","apa":"Yakaboylu, E., Midya, B., Deuchert, A., Leopold, N. K., &#38; Lemeshko, M. (2018). Theory of the rotating polaron: Spectrum and self-localization. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevb.98.224506\">https://doi.org/10.1103/physrevb.98.224506</a>","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.","ieee":"E. Yakaboylu, B. Midya, A. Deuchert, N. K. Leopold, and M. Lemeshko, “Theory of the rotating polaron: Spectrum and self-localization,” <i>Physical Review B</i>, vol. 98, no. 22. American Physical Society, 2018.","mla":"Yakaboylu, Enderalp, et al. “Theory of the Rotating Polaron: Spectrum and Self-Localization.” <i>Physical Review B</i>, vol. 98, no. 22, 224506, American Physical Society, 2018, doi:<a href=\"https://doi.org/10.1103/physrevb.98.224506\">10.1103/physrevb.98.224506</a>.","short":"E. Yakaboylu, B. Midya, A. Deuchert, N.K. Leopold, M. Lemeshko, Physical Review B 98 (2018).","chicago":"Yakaboylu, Enderalp, Bikashkali Midya, Andreas Deuchert, Nikolai K Leopold, and Mikhail Lemeshko. “Theory of the Rotating Polaron: Spectrum and Self-Localization.” <i>Physical Review B</i>. American Physical Society, 2018. <a href=\"https://doi.org/10.1103/physrevb.98.224506\">https://doi.org/10.1103/physrevb.98.224506</a>."},"fulldoi":"https://doi.org/10.1103/physrevb.98.224506","external_id":{"isi":["000452992700008"],"arxiv":["1809.01204"]},"publisher":"American Physical Society","date_created":"2019-02-14T10:37:09Z","article_number":"224506","_id":"5983","year":"2018","main_file_link":[{"url":"https://arxiv.org/abs/1809.01204","open_access":"1"}],"date_published":"2018-12-12T00:00:00Z","type":"journal_article","status":"public","scopus_import":"1","title":"Theory of the rotating polaron: Spectrum and self-localization","issue":"22","publication":"Physical Review B","volume":98,"day":"12","doi":"10.1103/physrevb.98.224506","oa_version":"Preprint","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."}],"project":[{"call_identifier":"FP7","grant_number":"291734","_id":"25681D80-B435-11E9-9278-68D0E5697425","name":"International IST Postdoc Fellowship Programme"},{"_id":"25C6DC12-B435-11E9-9278-68D0E5697425","name":"Analysis of quantum many-body systems","call_identifier":"H2020","grant_number":"694227"}],"publication_status":"published","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","article_processing_charge":"No","publication_identifier":{"issn":["2469-9950"],"eissn":["2469-9969"]},"month":"12","quality_controlled":"1"},{"date_updated":"2025-04-15T07:59:29Z","department":[{"_id":"MiLe"}],"language":[{"iso":"eng"}],"oa":1,"arxiv":1,"author":[{"orcid":"0000-0001-8823-9777","first_name":"Giacomo","full_name":"Bighin, Giacomo","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","last_name":"Bighin"},{"last_name":"Tscherbul","first_name":"Timur","full_name":"Tscherbul, Timur"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","first_name":"Mikhail","full_name":"Lemeshko, Mikhail","last_name":"Lemeshko"}],"intvolume":"       121","isi":1,"fulldoi":"https://doi.org/10.1103/physrevlett.121.165301","citation":{"mla":"Bighin, Giacomo, et al. “Diagrammatic Monte Carlo Approach to Angular Momentum in Quantum Many-Particle Systems.” <i>Physical Review Letters</i>, vol. 121, no. 16, 165301, American Physical Society, 2018, doi:<a href=\"https://doi.org/10.1103/physrevlett.121.165301\">10.1103/physrevlett.121.165301</a>.","short":"G. Bighin, T. Tscherbul, M. Lemeshko, Physical Review Letters 121 (2018).","chicago":"Bighin, Giacomo, Timur Tscherbul, and Mikhail Lemeshko. “Diagrammatic Monte Carlo Approach to Angular Momentum in Quantum Many-Particle Systems.” <i>Physical Review Letters</i>. American Physical Society, 2018. <a href=\"https://doi.org/10.1103/physrevlett.121.165301\">https://doi.org/10.1103/physrevlett.121.165301</a>.","ama":"Bighin G, Tscherbul T, Lemeshko M. Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems. <i>Physical Review Letters</i>. 2018;121(16). doi:<a href=\"https://doi.org/10.1103/physrevlett.121.165301\">10.1103/physrevlett.121.165301</a>","apa":"Bighin, G., Tscherbul, T., &#38; Lemeshko, M. (2018). Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevlett.121.165301\">https://doi.org/10.1103/physrevlett.121.165301</a>","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.","ieee":"G. Bighin, T. Tscherbul, and M. Lemeshko, “Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems,” <i>Physical Review Letters</i>, vol. 121, no. 16. American Physical Society, 2018."},"external_id":{"arxiv":["1803.07990"],"isi":["000447468400008"]},"publisher":"American Physical Society","date_created":"2019-04-17T10:53:38Z","year":"2018","article_number":"165301","_id":"6339","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1803.07990"}],"date_published":"2018-10-16T00:00:00Z","status":"public","related_material":{"link":[{"url":"https://ist.ac.at/en/news/description-of-rotating-molecules-made-easy/","relation":"press_release","description":"News on IST Homepage"}]},"type":"journal_article","scopus_import":"1","title":"Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems","publication":"Physical Review Letters","volume":121,"issue":"16","doi":"10.1103/physrevlett.121.165301","day":"16","oa_version":"Preprint","abstract":[{"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.","lang":"eng"}],"publication_status":"published","project":[{"name":"Quantum rotations in the presence of a many-body environment","_id":"26031614-B435-11E9-9278-68D0E5697425","grant_number":"P29902","call_identifier":"FWF"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_processing_charge":"No","quality_controlled":"1","month":"10"},{"date_published":"2018-03-14T00:00:00Z","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","status":"public","type":"journal_article","related_material":{"record":[{"id":"10759","status":"public","relation":"dissertation_contains"}]},"year":"2018","_id":"415","article_number":"104307","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1711.09904"}],"scopus_import":"1","title":"Effect of a magnetic field on molecule–solvent angular momentum transfer","oa_version":"Preprint","abstract":[{"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.","lang":"eng"}],"publist_id":"7408","publication":"The Journal of Chemical Physics","volume":148,"issue":"10","day":"14","doi":"10.1063/1.5017591","article_processing_charge":"No","quality_controlled":"1","month":"03","publication_status":"published","project":[{"call_identifier":"FWF","grant_number":"P29902","_id":"26031614-B435-11E9-9278-68D0E5697425","name":"Quantum rotations in the presence of a many-body environment"},{"call_identifier":"H2020","grant_number":"665385","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","name":"International IST Doctoral Program"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","language":[{"iso":"eng"}],"department":[{"_id":"MiLe"}],"date_updated":"2026-04-07T14:20:12Z","author":[{"id":"48C55298-F248-11E8-B48F-1D18A9856A87","full_name":"Rzadkowski, Wojciech","first_name":"Wojciech","orcid":"0000-0002-1106-4419","last_name":"Rzadkowski"},{"last_name":"Lemeshko","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","full_name":"Lemeshko, Mikhail","first_name":"Mikhail"}],"arxiv":1,"oa":1,"ec_funded":1,"fulldoi":"https://doi.org/10.1063/1.5017591","citation":{"short":"W. Rzadkowski, M. Lemeshko, The Journal of Chemical Physics 148 (2018).","chicago":"Rzadkowski, Wojciech, and Mikhail Lemeshko. “Effect of a Magnetic Field on Molecule–Solvent Angular Momentum Transfer.” <i>The Journal of Chemical Physics</i>. AIP Publishing, 2018. <a href=\"https://doi.org/10.1063/1.5017591\">https://doi.org/10.1063/1.5017591</a>.","mla":"Rzadkowski, Wojciech, and Mikhail Lemeshko. “Effect of a Magnetic Field on Molecule–Solvent Angular Momentum Transfer.” <i>The Journal of Chemical Physics</i>, vol. 148, no. 10, 104307, AIP Publishing, 2018, doi:<a href=\"https://doi.org/10.1063/1.5017591\">10.1063/1.5017591</a>.","ieee":"W. Rzadkowski and M. Lemeshko, “Effect of a magnetic field on molecule–solvent angular momentum transfer,” <i>The Journal of Chemical Physics</i>, 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.","ama":"Rzadkowski W, Lemeshko M. Effect of a magnetic field on molecule–solvent angular momentum transfer. <i>The Journal of Chemical Physics</i>. 2018;148(10). doi:<a href=\"https://doi.org/10.1063/1.5017591\">10.1063/1.5017591</a>","apa":"Rzadkowski, W., &#38; Lemeshko, M. (2018). Effect of a magnetic field on molecule–solvent angular momentum transfer. <i>The Journal of Chemical Physics</i>. AIP Publishing. <a href=\"https://doi.org/10.1063/1.5017591\">https://doi.org/10.1063/1.5017591</a>"},"external_id":{"isi":["000427517200065"],"arxiv":["1711.09904"]},"intvolume":"       148","isi":1,"article_type":"original","publisher":"AIP Publishing","date_created":"2018-12-11T11:46:21Z"},{"date_created":"2018-12-11T11:46:22Z","publisher":"American Physical Society","intvolume":"       121","external_id":{"arxiv":["1803.07990"]},"citation":{"ieee":"G. Bighin, T. Tscherbul, and M. Lemeshko, “Diagrammatic Monte Carlo approach to rotating molecular impurities,” <i>Physical Review Letters</i>, 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.","apa":"Bighin, G., Tscherbul, T., &#38; Lemeshko, M. (2018). Diagrammatic Monte Carlo approach to rotating molecular impurities. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.121.165301\">https://doi.org/10.1103/PhysRevLett.121.165301</a>","ama":"Bighin G, Tscherbul T, Lemeshko M. Diagrammatic Monte Carlo approach to rotating molecular impurities. <i>Physical Review Letters</i>. 2018;121(16). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.121.165301\">10.1103/PhysRevLett.121.165301</a>","chicago":"Bighin, Giacomo, Timur Tscherbul, and Mikhail Lemeshko. “Diagrammatic Monte Carlo Approach to Rotating Molecular Impurities.” <i>Physical Review Letters</i>. American Physical Society, 2018. <a href=\"https://doi.org/10.1103/PhysRevLett.121.165301\">https://doi.org/10.1103/PhysRevLett.121.165301</a>.","short":"G. Bighin, T. Tscherbul, M. Lemeshko, Physical Review Letters 121 (2018).","mla":"Bighin, Giacomo, et al. “Diagrammatic Monte Carlo Approach to Rotating Molecular Impurities.” <i>Physical Review Letters</i>, vol. 121, no. 16, 165301, American Physical Society, 2018, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.121.165301\">10.1103/PhysRevLett.121.165301</a>."},"fulldoi":"https://doi.org/10.1103/PhysRevLett.121.165301","arxiv":1,"oa":1,"author":[{"last_name":"Bighin","orcid":"0000-0001-8823-9777","full_name":"Bighin, Giacomo","first_name":"Giacomo","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Tscherbul","first_name":"Timur","full_name":"Tscherbul, Timur"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","first_name":"Mikhail","full_name":"Lemeshko, Mikhail","last_name":"Lemeshko"}],"date_updated":"2025-04-15T07:59:27Z","language":[{"iso":"eng"}],"department":[{"_id":"MiLe"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","project":[{"_id":"26031614-B435-11E9-9278-68D0E5697425","name":"Quantum rotations in the presence of a many-body environment","call_identifier":"FWF","grant_number":"P29902"}],"publication_status":"published","month":"10","quality_controlled":"1","article_processing_charge":"No","day":"16","doi":"10.1103/PhysRevLett.121.165301","issue":"16","volume":121,"publication":"Physical Review Letters","abstract":[{"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. ","lang":"eng"}],"publist_id":"8025","oa_version":"Preprint","title":"Diagrammatic Monte Carlo approach to rotating molecular impurities","scopus_import":"1","main_file_link":[{"url":"https://arxiv.org/abs/1803.07990","open_access":"1"}],"_id":"417","article_number":"165301","year":"2018","type":"journal_article","status":"public","date_published":"2018-10-16T00:00:00Z"},{"page":"1840022","external_id":{"arxiv":["1710.11171"],"isi":["000438217300007"]},"citation":{"short":"G. Bighin, L. Salasnich, International Journal of Modern Physics B 32 (2018) 1840022.","chicago":"Bighin, Giacomo, and Luca Salasnich. “Renormalization of the Superfluid Density in the Two-Dimensional BCS-BEC Crossover.” <i>International Journal of Modern Physics B</i>. World Scientific Publishing, 2018. <a href=\"https://doi.org/10.1142/S0217979218400222\">https://doi.org/10.1142/S0217979218400222</a>.","mla":"Bighin, Giacomo, and Luca Salasnich. “Renormalization of the Superfluid Density in the Two-Dimensional BCS-BEC Crossover.” <i>International Journal of Modern Physics B</i>, vol. 32, no. 17, World Scientific Publishing, 2018, p. 1840022, doi:<a href=\"https://doi.org/10.1142/S0217979218400222\">10.1142/S0217979218400222</a>.","ista":"Bighin G, Salasnich L. 2018. Renormalization of the superfluid density in the two-dimensional BCS-BEC crossover. International Journal of Modern Physics B. 32(17), 1840022.","ieee":"G. Bighin and L. Salasnich, “Renormalization of the superfluid density in the two-dimensional BCS-BEC crossover,” <i>International Journal of Modern Physics B</i>, vol. 32, no. 17. World Scientific Publishing, p. 1840022, 2018.","ama":"Bighin G, Salasnich L. Renormalization of the superfluid density in the two-dimensional BCS-BEC crossover. <i>International Journal of Modern Physics B</i>. 2018;32(17):1840022. doi:<a href=\"https://doi.org/10.1142/S0217979218400222\">10.1142/S0217979218400222</a>","apa":"Bighin, G., &#38; Salasnich, L. (2018). Renormalization of the superfluid density in the two-dimensional BCS-BEC crossover. <i>International Journal of Modern Physics B</i>. World Scientific Publishing. <a href=\"https://doi.org/10.1142/S0217979218400222\">https://doi.org/10.1142/S0217979218400222</a>"},"fulldoi":"https://doi.org/10.1142/S0217979218400222","isi":1,"intvolume":"        32","date_created":"2018-12-11T11:46:22Z","publisher":"World Scientific Publishing","language":[{"iso":"eng"}],"department":[{"_id":"MiLe"}],"date_updated":"2025-06-04T07:52:34Z","author":[{"last_name":"Bighin","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-8823-9777","first_name":"Giacomo","full_name":"Bighin, Giacomo"},{"first_name":"Luca","full_name":"Salasnich, Luca","last_name":"Salasnich"}],"oa":1,"arxiv":1,"abstract":[{"text":"We analyze the theoretical derivation of the beyond-mean-field equation of state for two-dimensional gas of dilute, ultracold alkali-metal atoms in the Bardeen–Cooper–Schrieffer (BCS) to Bose–Einstein condensate (BEC) crossover. We show that at zero temperature our theory — considering Gaussian fluctuations on top of the mean-field equation of state — is in very good agreement with experimental data. Subsequently, we investigate the superfluid density at finite temperature and its renormalization due to the proliferation of vortex–antivortex pairs. By doing so, we determine the Berezinskii–Kosterlitz–Thouless (BKT) critical temperature — at which the renormalized superfluid density jumps to zero — as a function of the inter-atomic potential strength. We find that the Nelson–Kosterlitz criterion overestimates the BKT temperature with respect to the renormalization group equations, this effect being particularly relevant in the intermediate regime of the crossover.","lang":"eng"}],"publist_id":"7402","oa_version":"Preprint","day":"10","doi":"10.1142/S0217979218400222","issue":"17","volume":32,"publication":"International Journal of Modern Physics B","month":"07","quality_controlled":"1","article_processing_charge":"No","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_status":"published","type":"journal_article","status":"public","date_published":"2018-07-10T00:00:00Z","main_file_link":[{"url":"https://arxiv.org/abs/1710.11171","open_access":"1"}],"_id":"420","year":"2018","title":"Renormalization of the superfluid density in the two-dimensional BCS-BEC crossover","scopus_import":"1"},{"language":[{"iso":"eng"}],"department":[{"_id":"MiLe"}],"date_updated":"2026-07-07T13:17:14Z","ec_funded":1,"oa":1,"arxiv":1,"author":[{"full_name":"Amaro, Pedro","first_name":"Pedro","last_name":"Amaro"},{"first_name":"Ulisses","full_name":"Loureiro, Ulisses","last_name":"Loureiro"},{"last_name":"Safari","full_name":"Safari, Laleh","first_name":"Laleh","id":"3C325E5E-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Filippo","full_name":"Fratini, Filippo","last_name":"Fratini"},{"last_name":"Indelicato","first_name":"Paul","full_name":"Indelicato, Paul"},{"full_name":"Stöhlker, Thomas","first_name":"Thomas","last_name":"Stöhlker"},{"first_name":"José","full_name":"Santos, José","last_name":"Santos"}],"isi":1,"article_type":"original","intvolume":"        97","external_id":{"isi":["000425601000004"],"arxiv":["1802.07920"]},"fulldoi":"https://doi.org/10.1103/PhysRevA.97.022510","citation":{"apa":"Amaro, P., Loureiro, U., Safari, L., Fratini, F., Indelicato, P., Stöhlker, T., &#38; Santos, J. (2018). Quantum interference in laser spectroscopy of highly charged lithiumlike ions. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.97.022510\">https://doi.org/10.1103/PhysRevA.97.022510</a>","ama":"Amaro P, Loureiro U, Safari L, et al. Quantum interference in laser spectroscopy of highly charged lithiumlike ions. <i>Physical Review A</i>. 2018;97(2). doi:<a href=\"https://doi.org/10.1103/PhysRevA.97.022510\">10.1103/PhysRevA.97.022510</a>","ista":"Amaro P, Loureiro U, Safari L, Fratini F, Indelicato P, Stöhlker T, Santos J. 2018. Quantum interference in laser spectroscopy of highly charged lithiumlike ions. Physical Review A. 97(2), 022510.","ieee":"P. Amaro <i>et al.</i>, “Quantum interference in laser spectroscopy of highly charged lithiumlike ions,” <i>Physical Review A</i>, vol. 97, no. 2. American Physical Society, 2018.","mla":"Amaro, Pedro, et al. “Quantum Interference in Laser Spectroscopy of Highly Charged Lithiumlike Ions.” <i>Physical Review A</i>, vol. 97, no. 2, 022510, American Physical Society, 2018, doi:<a href=\"https://doi.org/10.1103/PhysRevA.97.022510\">10.1103/PhysRevA.97.022510</a>.","short":"P. Amaro, U. Loureiro, L. Safari, F. Fratini, P. Indelicato, T. Stöhlker, J. Santos, Physical Review A 97 (2018).","chicago":"Amaro, Pedro, Ulisses Loureiro, Laleh Safari, Filippo Fratini, Paul Indelicato, Thomas Stöhlker, and José Santos. “Quantum Interference in Laser Spectroscopy of Highly Charged Lithiumlike Ions.” <i>Physical Review A</i>. American Physical Society, 2018. <a href=\"https://doi.org/10.1103/PhysRevA.97.022510\">https://doi.org/10.1103/PhysRevA.97.022510</a>."},"date_created":"2018-12-11T11:46:25Z","publisher":"American Physical Society","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1802.07920"}],"year":"2018","article_number":"022510","_id":"427","status":"public","type":"journal_article","acknowledgement":"This work was funded by the Portuguese Fundação para a Ciência e a Tecnologia (FCT/MCTES/PIDDAC) under Grant No. UID/FIS/04559/2013 (LIBPhys). P.A. acknowledges the support of the FCT, under Contract No. SFRH/BPD/92329/2013. L.S. acknowledges financial support from the People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme (FP7/2007-2013) under REA Grant Agreement No. (291734). Laboratoire Kastler Brossel (LKB) is “Unité Mixte de Recherche de Sorbonne Université, de ENS-PSL Research University, du Collège de France et du CNRS No. 8552.” APPENDIX:\r\n","date_published":"2018-02-21T00:00:00Z","title":"Quantum interference in laser spectroscopy of highly charged lithiumlike ions","scopus_import":"1","day":"21","doi":"10.1103/PhysRevA.97.022510","publication":"Physical Review A","volume":97,"issue":"2","publist_id":"7396","abstract":[{"lang":"eng","text":"We investigate the quantum interference induced shifts between energetically close states in highly charged ions, with the energy structure being observed by laser spectroscopy. In this work, we focus on hyperfine states of lithiumlike heavy-Z isotopes and quantify how much quantum interference changes the observed transition frequencies. The process of photon excitation and subsequent photon decay for the transition 2s→2p→2s is implemented with fully relativistic and full-multipole frameworks, which are relevant for such relativistic atomic systems. We consider the isotopes Pb79+207 and Bi80+209 due to experimental interest, as well as other examples of isotopes with lower Z, namely Pr56+141 and Ho64+165. We conclude that quantum interference can induce shifts up to 11% of the linewidth in the measurable resonances of the considered isotopes, if interference between resonances is neglected. The inclusion of relativity decreases the cross section by 35%, mainly due to the complete retardation form of the electric dipole multipole. However, the contribution of the next higher multipoles (e.g., magnetic quadrupole) to the cross section is negligible. This makes the contribution of relativity and higher-order multipoles to the quantum interference induced shifts a minor effect, even for heavy-Z elements."}],"oa_version":"Preprint","das_tickbox":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_status":"published","project":[{"name":"International IST Postdoc Fellowship Programme","_id":"25681D80-B435-11E9-9278-68D0E5697425","grant_number":"291734","call_identifier":"FP7"}],"quality_controlled":"1","month":"02","article_processing_charge":"No"},{"main_file_link":[{"url":"https://arxiv.org/abs/1801.06892","open_access":"1"}],"year":"2018","_id":"294","status":"public","type":"journal_article","date_published":"2018-04-18T00:00:00Z","title":"Two-photon processes based on quantum commutators","scopus_import":"1","day":"18","doi":"10.1103/PhysRevA.97.043842","volume":97,"publication":"Physical Review A","issue":"4","abstract":[{"lang":"eng","text":"We developed a method to calculate two-photon processes in quantum mechanics that replaces the infinite summation over the intermediate states by a perturbation expansion. This latter consists of a series of commutators that involve position, momentum, and Hamiltonian quantum operators. We analyzed several single- and many-particle cases for which a closed-form solution to the perturbation expansion exists, as well as more complicated cases for which a solution is found by convergence. Throughout the article, Rayleigh and Raman scattering are taken as examples of two-photon processes. The present method provides a clear distinction between the Thomson scattering, regarded as classical scattering, and quantum contributions. Such a distinction lets us derive general results concerning light scattering. Finally, possible extensions to the developed formalism are discussed."}],"publist_id":"7587","oa_version":"Submitted Version","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_status":"published","project":[{"name":"International IST Postdoc Fellowship Programme","_id":"25681D80-B435-11E9-9278-68D0E5697425","grant_number":"291734","call_identifier":"FP7"}],"quality_controlled":"1","month":"04","article_processing_charge":"No","department":[{"_id":"MiLe"}],"date_updated":"2026-08-12T14:22:13Z","language":[{"iso":"eng"}],"ec_funded":1,"arxiv":1,"oa":1,"author":[{"first_name":"Filippo","full_name":"Fratini, Filippo","last_name":"Fratini"},{"id":"3C325E5E-F248-11E8-B48F-1D18A9856A87","full_name":"Safari, Laleh","first_name":"Laleh","last_name":"Safari"},{"last_name":"Amaro","first_name":"Pedro","full_name":"Amaro, Pedro"},{"last_name":"Santos","full_name":"Santos, José","first_name":"José"}],"isi":1,"intvolume":"        97","external_id":{"isi":["000430296800008"],"arxiv":["1801.06892"]},"fulldoi":"https://doi.org/10.1103/PhysRevA.97.043842","citation":{"ama":"Fratini F, Safari L, Amaro P, Santos J. Two-photon processes based on quantum commutators. <i>Physical Review A</i>. 2018;97(4). doi:<a href=\"https://doi.org/10.1103/PhysRevA.97.043842\">10.1103/PhysRevA.97.043842</a>","apa":"Fratini, F., Safari, L., Amaro, P., &#38; Santos, J. (2018). Two-photon processes based on quantum commutators. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.97.043842\">https://doi.org/10.1103/PhysRevA.97.043842</a>","ista":"Fratini F, Safari L, Amaro P, Santos J. 2018. Two-photon processes based on quantum commutators. Physical Review A. 97(4).","ieee":"F. Fratini, L. Safari, P. Amaro, and J. Santos, “Two-photon processes based on quantum commutators,” <i>Physical Review A</i>, vol. 97, no. 4. American Physical Society, 2018.","mla":"Fratini, Filippo, et al. “Two-Photon Processes Based on Quantum Commutators.” <i>Physical Review A</i>, vol. 97, no. 4, American Physical Society, 2018, doi:<a href=\"https://doi.org/10.1103/PhysRevA.97.043842\">10.1103/PhysRevA.97.043842</a>.","chicago":"Fratini, Filippo, Laleh Safari, Pedro Amaro, and José Santos. “Two-Photon Processes Based on Quantum Commutators.” <i>Physical Review A</i>. American Physical Society, 2018. <a href=\"https://doi.org/10.1103/PhysRevA.97.043842\">https://doi.org/10.1103/PhysRevA.97.043842</a>.","short":"F. Fratini, L. Safari, P. Amaro, J. Santos, Physical Review A 97 (2018)."},"date_created":"2018-12-11T11:45:40Z","publisher":"American Physical Society"},{"project":[{"name":"International IST Postdoc Fellowship Programme","_id":"25681D80-B435-11E9-9278-68D0E5697425","grant_number":"291734","call_identifier":"FP7"},{"_id":"26031614-B435-11E9-9278-68D0E5697425","name":"Quantum rotations in the presence of a many-body environment","call_identifier":"FWF","grant_number":"P29902"}],"publication_status":"published","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_processing_charge":"No","month":"07","quality_controlled":"1","issue":"4","volume":98,"publication":"Physical Review B","day":"15","doi":"10.1103/PhysRevB.98.045402","oa_version":"Submitted Version","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."}],"scopus_import":"1","title":"Anyonic statistics of quantum impurities in two dimensions","_id":"195","article_number":"045402","year":"2018","main_file_link":[{"url":"https://arxiv.org/abs/1712.00308","open_access":"1"}],"date_published":"2018-07-15T00:00:00Z","type":"journal_article","status":"public","publisher":"American Physical Society","date_created":"2018-12-11T11:45:08Z","intvolume":"        98","isi":1,"citation":{"apa":"Yakaboylu, E., &#38; Lemeshko, M. (2018). Anyonic statistics of quantum impurities in two dimensions. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevB.98.045402\">https://doi.org/10.1103/PhysRevB.98.045402</a>","ama":"Yakaboylu E, Lemeshko M. Anyonic statistics of quantum impurities in two dimensions. <i>Physical Review B</i>. 2018;98(4). doi:<a href=\"https://doi.org/10.1103/PhysRevB.98.045402\">10.1103/PhysRevB.98.045402</a>","ista":"Yakaboylu E, Lemeshko M. 2018. Anyonic statistics of quantum impurities in two dimensions. Physical Review B. 98(4), 045402.","ieee":"E. Yakaboylu and M. Lemeshko, “Anyonic statistics of quantum impurities in two dimensions,” <i>Physical Review B</i>, vol. 98, no. 4. American Physical Society, 2018.","mla":"Yakaboylu, Enderalp, and Mikhail Lemeshko. “Anyonic Statistics of Quantum Impurities in Two Dimensions.” <i>Physical Review B</i>, vol. 98, no. 4, 045402, American Physical Society, 2018, doi:<a href=\"https://doi.org/10.1103/PhysRevB.98.045402\">10.1103/PhysRevB.98.045402</a>.","chicago":"Yakaboylu, Enderalp, and Mikhail Lemeshko. “Anyonic Statistics of Quantum Impurities in Two Dimensions.” <i>Physical Review B</i>. American Physical Society, 2018. <a href=\"https://doi.org/10.1103/PhysRevB.98.045402\">https://doi.org/10.1103/PhysRevB.98.045402</a>.","short":"E. Yakaboylu, M. Lemeshko, Physical Review B 98 (2018)."},"fulldoi":"https://doi.org/10.1103/PhysRevB.98.045402","external_id":{"arxiv":["1712.00308"],"isi":["000436939100007"]},"corr_author":"1","arxiv":1,"oa":1,"ec_funded":1,"author":[{"last_name":"Yakaboylu","full_name":"Yakaboylu, Enderalp","first_name":"Enderalp","orcid":"0000-0001-5973-0874","id":"38CB71F6-F248-11E8-B48F-1D18A9856A87"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","full_name":"Lemeshko, Mikhail","first_name":"Mikhail","orcid":"0000-0002-6990-7802","last_name":"Lemeshko"}],"date_updated":"2026-08-12T14:24:49Z","department":[{"_id":"MiLe"}],"language":[{"iso":"eng"}]},{"language":[{"iso":"eng"}],"date_updated":"2025-06-04T08:36:27Z","department":[{"_id":"MiLe"}],"author":[{"last_name":"Shepperson","first_name":"Benjamin","full_name":"Shepperson, Benjamin"},{"last_name":"Søndergaard","full_name":"Søndergaard, Anders","first_name":"Anders"},{"first_name":"Lars","full_name":"Christiansen, Lars","last_name":"Christiansen"},{"last_name":"Kaczmarczyk","id":"46C405DE-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-1629-3675","first_name":"Jan","full_name":"Kaczmarczyk, Jan"},{"full_name":"Zillich, Robert","first_name":"Robert","last_name":"Zillich"},{"last_name":"Lemeshko","orcid":"0000-0002-6990-7802","first_name":"Mikhail","full_name":"Lemeshko, Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Stapelfeldt","first_name":"Henrik","full_name":"Stapelfeldt, Henrik"}],"oa":1,"arxiv":1,"external_id":{"isi":["000401664000005"],"arxiv":["1702.01977"]},"citation":{"apa":"Shepperson, B., Søndergaard, A., Christiansen, L., Kaczmarczyk, J., Zillich, R., Lemeshko, M., &#38; Stapelfeldt, H. (2017). Laser-induced rotation of iodine molecules in helium nanodroplets: Revivals and breaking-free. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.118.203203\">https://doi.org/10.1103/PhysRevLett.118.203203</a>","ama":"Shepperson B, Søndergaard A, Christiansen L, et al. Laser-induced rotation of iodine molecules in helium nanodroplets: Revivals and breaking-free. <i>Physical Review Letters</i>. 2017;118(20). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.118.203203\">10.1103/PhysRevLett.118.203203</a>","ieee":"B. Shepperson <i>et al.</i>, “Laser-induced rotation of iodine molecules in helium nanodroplets: Revivals and breaking-free,” <i>Physical Review Letters</i>, 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.” <i>Physical Review Letters</i>, vol. 118, no. 20, 203203, American Physical Society, 2017, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.118.203203\">10.1103/PhysRevLett.118.203203</a>.","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.” <i>Physical Review Letters</i>. American Physical Society, 2017. <a href=\"https://doi.org/10.1103/PhysRevLett.118.203203\">https://doi.org/10.1103/PhysRevLett.118.203203</a>.","short":"B. Shepperson, A. Søndergaard, L. Christiansen, J. Kaczmarczyk, R. Zillich, M. Lemeshko, H. Stapelfeldt, Physical Review Letters 118 (2017)."},"fulldoi":"https://doi.org/10.1103/PhysRevLett.118.203203","isi":1,"intvolume":"       118","date_created":"2018-12-11T11:50:12Z","publisher":"American Physical Society","type":"journal_article","status":"public","date_published":"2017-05-19T00:00:00Z","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1702.01977"}],"article_number":"203203","_id":"1109","year":"2017","title":"Laser-induced rotation of iodine molecules in helium nanodroplets: Revivals and breaking-free","scopus_import":"1","publist_id":"6260","abstract":[{"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. ","lang":"eng"}],"oa_version":"Preprint","day":"19","doi":"10.1103/PhysRevLett.118.203203","issue":"20","volume":118,"publication":"Physical Review Letters","month":"05","quality_controlled":"1","article_processing_charge":"No","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_status":"published","project":[{"grant_number":"P29902","call_identifier":"FWF","name":"Quantum rotations in the presence of a many-body environment","_id":"26031614-B435-11E9-9278-68D0E5697425"}]},{"oa":1,"arxiv":1,"author":[{"first_name":"Mikhail","full_name":"Lemeshko, Mikhail","orcid":"0000-0002-6990-7802","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","last_name":"Lemeshko"}],"language":[{"iso":"eng"}],"date_updated":"2025-06-04T08:36:48Z","department":[{"_id":"MiLe"}],"date_created":"2018-12-11T11:50:15Z","publisher":"American Physical Society","isi":1,"intvolume":"       118","external_id":{"arxiv":["1610.01604"],"isi":["000404769200006"]},"citation":{"apa":"Lemeshko, M. (2017). Quasiparticle approach to molecules interacting with quantum solvents. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.118.095301\">https://doi.org/10.1103/PhysRevLett.118.095301</a>","ama":"Lemeshko M. Quasiparticle approach to molecules interacting with quantum solvents. <i>Physical Review Letters</i>. 2017;118(9). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.118.095301\">10.1103/PhysRevLett.118.095301</a>","ista":"Lemeshko M. 2017. Quasiparticle approach to molecules interacting with quantum solvents. Physical Review Letters. 118(9), 095301.","ieee":"M. Lemeshko, “Quasiparticle approach to molecules interacting with quantum solvents,” <i>Physical Review Letters</i>, vol. 118, no. 9. American Physical Society, 2017.","mla":"Lemeshko, Mikhail. “Quasiparticle Approach to Molecules Interacting with Quantum Solvents.” <i>Physical Review Letters</i>, vol. 118, no. 9, 095301, American Physical Society, 2017, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.118.095301\">10.1103/PhysRevLett.118.095301</a>.","chicago":"Lemeshko, Mikhail. “Quasiparticle Approach to Molecules Interacting with Quantum Solvents.” <i>Physical Review Letters</i>. American Physical Society, 2017. <a href=\"https://doi.org/10.1103/PhysRevLett.118.095301\">https://doi.org/10.1103/PhysRevLett.118.095301</a>.","short":"M. Lemeshko, Physical Review Letters 118 (2017)."},"fulldoi":"https://doi.org/10.1103/PhysRevLett.118.095301","title":"Quasiparticle approach to molecules interacting with quantum solvents","scopus_import":"1","main_file_link":[{"url":"https://arxiv.org/abs/1610.01604","open_access":"1"}],"_id":"1119","article_number":"095301","year":"2017","type":"journal_article","status":"public","date_published":"2017-02-27T00:00:00Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","project":[{"grant_number":"11-NSF-1070","_id":"25636330-B435-11E9-9278-68D0E5697425","name":"Genome-wide Analysis of Root Traits"}],"publication_status":"published","month":"02","quality_controlled":"1","article_processing_charge":"No","publication_identifier":{"issn":["0031-9007"]},"day":"27","doi":"10.1103/PhysRevLett.118.095301","issue":"9","volume":118,"publication":"Physical Review Letters","abstract":[{"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.","lang":"eng"}],"publist_id":"6243","oa_version":"Submitted Version"},{"department":[{"_id":"MiLe"},{"_id":"RoSe"}],"language":[{"iso":"eng"}],"date_updated":"2026-06-18T10:48:58Z","ec_funded":1,"oa":1,"arxiv":1,"author":[{"last_name":"Li","id":"4B7E523C-F248-11E8-B48F-1D18A9856A87","first_name":"Xiang","full_name":"Li, Xiang"},{"id":"4AFD0470-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6781-0521","first_name":"Robert","full_name":"Seiringer, Robert","last_name":"Seiringer"},{"first_name":"Mikhail","full_name":"Lemeshko, Mikhail","orcid":"0000-0002-6990-7802","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","last_name":"Lemeshko"}],"ddc":["530"],"isi":1,"intvolume":"        95","external_id":{"arxiv":["1610.04908"],"isi":["000395981900009"]},"citation":{"mla":"Li, Xiang, et al. “Angular Self-Localization of Impurities Rotating in a Bosonic Bath.” <i>Physical Review A</i>, vol. 95, no. 3, 033608, American Physical Society, 2017, doi:<a href=\"https://doi.org/10.1103/PhysRevA.95.033608\">10.1103/PhysRevA.95.033608</a>.","short":"X. Li, R. Seiringer, M. Lemeshko, Physical Review A 95 (2017).","chicago":"Li, Xiang, Robert Seiringer, and Mikhail Lemeshko. “Angular Self-Localization of Impurities Rotating in a Bosonic Bath.” <i>Physical Review A</i>. American Physical Society, 2017. <a href=\"https://doi.org/10.1103/PhysRevA.95.033608\">https://doi.org/10.1103/PhysRevA.95.033608</a>.","ama":"Li X, Seiringer R, Lemeshko M. Angular self-localization of impurities rotating in a bosonic bath. <i>Physical Review A</i>. 2017;95(3). doi:<a href=\"https://doi.org/10.1103/PhysRevA.95.033608\">10.1103/PhysRevA.95.033608</a>","apa":"Li, X., Seiringer, R., &#38; Lemeshko, M. (2017). Angular self-localization of impurities rotating in a bosonic bath. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.95.033608\">https://doi.org/10.1103/PhysRevA.95.033608</a>","ista":"Li X, Seiringer R, Lemeshko M. 2017. Angular self-localization of impurities rotating in a bosonic bath. Physical Review A. 95(3), 033608.","ieee":"X. Li, R. Seiringer, and M. Lemeshko, “Angular self-localization of impurities rotating in a bosonic bath,” <i>Physical Review A</i>, vol. 95, no. 3. American Physical Society, 2017."},"fulldoi":"https://doi.org/10.1103/PhysRevA.95.033608","date_created":"2018-12-11T11:50:15Z","publisher":"American Physical Society","main_file_link":[{"url":"https://arxiv.org/abs/1610.04908","open_access":"1"}],"_id":"1120","article_number":"033608","year":"2017","type":"journal_article","related_material":{"record":[{"relation":"dissertation_contains","id":"8958","status":"public"}]},"status":"public","date_published":"2017-03-06T00:00:00Z","title":"Angular self-localization of impurities rotating in a bosonic bath","scopus_import":"1","day":"06","doi":"10.1103/PhysRevA.95.033608","issue":"3","volume":95,"publication":"Physical Review A","abstract":[{"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. ","lang":"eng"}],"publist_id":"6242","oa_version":"Published Version","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_status":"published","project":[{"_id":"25C6DC12-B435-11E9-9278-68D0E5697425","name":"Analysis of quantum many-body systems","call_identifier":"H2020","grant_number":"694227"},{"_id":"25C878CE-B435-11E9-9278-68D0E5697425","name":"Structure of the Excitation Spectrum for Many-Body Quantum Systems","call_identifier":"FWF","grant_number":"P27533_N27"},{"_id":"26031614-B435-11E9-9278-68D0E5697425","name":"Quantum rotations in the presence of a many-body environment","call_identifier":"FWF","grant_number":"P29902"}],"month":"03","quality_controlled":"1","article_processing_charge":"No","publication_identifier":{"issn":["2469-9926"]}},{"year":"2017","article_number":"085302","_id":"1133","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1612.02820"}],"date_published":"2017-02-22T00:00:00Z","status":"public","type":"journal_article","scopus_import":"1","title":"Anomalous screening of quantum impurities by a neutral environment","publication":"Physical Review Letters","volume":118,"issue":"8","day":"22","doi":"10.1103/PhysRevLett.118.085302","oa_version":"Submitted Version","publist_id":"6225","abstract":[{"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.","lang":"eng"}],"project":[{"_id":"25681D80-B435-11E9-9278-68D0E5697425","name":"International IST Postdoc Fellowship Programme","call_identifier":"FP7","grant_number":"291734"},{"call_identifier":"FWF","grant_number":"P29902","_id":"26031614-B435-11E9-9278-68D0E5697425","name":"Quantum rotations in the presence of a many-body environment"}],"publication_status":"published","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_identifier":{"issn":["0031-9007"]},"article_processing_charge":"No","quality_controlled":"1","month":"02","department":[{"_id":"MiLe"}],"language":[{"iso":"eng"}],"date_updated":"2025-06-04T08:38:44Z","oa":1,"arxiv":1,"ec_funded":1,"author":[{"id":"38CB71F6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5973-0874","first_name":"Enderalp","full_name":"Yakaboylu, Enderalp","last_name":"Yakaboylu"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","first_name":"Mikhail","full_name":"Lemeshko, Mikhail","orcid":"0000-0002-6990-7802","last_name":"Lemeshko"}],"intvolume":"       118","isi":1,"fulldoi":"https://doi.org/10.1103/PhysRevLett.118.085302","citation":{"mla":"Yakaboylu, Enderalp, and Mikhail Lemeshko. “Anomalous Screening of Quantum Impurities by a Neutral Environment.” <i>Physical Review Letters</i>, vol. 118, no. 8, 085302, American Physical Society, 2017, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.118.085302\">10.1103/PhysRevLett.118.085302</a>.","chicago":"Yakaboylu, Enderalp, and Mikhail Lemeshko. “Anomalous Screening of Quantum Impurities by a Neutral Environment.” <i>Physical Review Letters</i>. American Physical Society, 2017. <a href=\"https://doi.org/10.1103/PhysRevLett.118.085302\">https://doi.org/10.1103/PhysRevLett.118.085302</a>.","short":"E. Yakaboylu, M. Lemeshko, Physical Review Letters 118 (2017).","apa":"Yakaboylu, E., &#38; Lemeshko, M. (2017). Anomalous screening of quantum impurities by a neutral environment. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.118.085302\">https://doi.org/10.1103/PhysRevLett.118.085302</a>","ama":"Yakaboylu E, Lemeshko M. Anomalous screening of quantum impurities by a neutral environment. <i>Physical Review Letters</i>. 2017;118(8). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.118.085302\">10.1103/PhysRevLett.118.085302</a>","ieee":"E. Yakaboylu and M. Lemeshko, “Anomalous screening of quantum impurities by a neutral environment,” <i>Physical Review Letters</i>, 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."},"external_id":{"isi":["000394667600003"],"arxiv":["1612.02820"]},"publisher":"American Physical Society","date_created":"2018-12-11T11:50:19Z"},{"oa_version":"None","publist_id":"6194","abstract":[{"text":"We investigate the effect of the electron-hole (e-h) symmetry breaking on d-wave superconductivity induced by non-local effects of correlations in the generalized Hubbard model. The symmetry breaking is introduced in a two-fold manner: by the next-to-nearest neighbor hopping of electrons and by the charge-bond interaction - the off-diagonal term of the Coulomb potential. Both terms lead to a pronounced asymmetry of the superconducting order parameter. The next-to-nearest neighbor hopping enhances superconductivity for h-doping, while diminishes it for e-doping. The charge-bond interaction alone leads to the opposite effect and, additionally, to the kinetic-energy gain upon condensation in the underdoped regime. With both terms included, with similar amplitudes, the height of the superconducting dome and the critical doping remain in favor of h-doping. The influence of the charge-bond interaction on deviations from symmetry of the shape of the gap at the Fermi surface in the momentum space is briefly discussed.","lang":"eng"}],"volume":29,"publication":"Journal of Physics: Condensed Matter","issue":"8","doi":"10.1088/1361-648X/aa532f","day":"16","publication_identifier":{"issn":["0953-8984"]},"article_processing_charge":"No","quality_controlled":"1","month":"01","publication_status":"published","project":[{"grant_number":"291734","call_identifier":"FP7","name":"International IST Postdoc Fellowship Programme","_id":"25681D80-B435-11E9-9278-68D0E5697425"}],"user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","date_published":"2017-01-16T00:00:00Z","status":"public","type":"journal_article","year":"2017","article_number":"085604","_id":"1163","scopus_import":"1","title":"Unconventional superconductivity in generalized Hubbard model role of electron–hole symmetry breaking terms","fulldoi":"https://doi.org/10.1088/1361-648X/aa532f","citation":{"mla":"Wysokiński, Marcin, and Jan Kaczmarczyk. “Unconventional Superconductivity in Generalized Hubbard Model Role of Electron–Hole Symmetry Breaking Terms.” <i>Journal of Physics: Condensed Matter</i>, vol. 29, no. 8, 085604, IOP Publishing, 2017, doi:<a href=\"https://doi.org/10.1088/1361-648X/aa532f\">10.1088/1361-648X/aa532f</a>.","short":"M. Wysokiński, J. Kaczmarczyk, Journal of Physics: Condensed Matter 29 (2017).","chicago":"Wysokiński, Marcin, and Jan Kaczmarczyk. “Unconventional Superconductivity in Generalized Hubbard Model Role of Electron–Hole Symmetry Breaking Terms.” <i>Journal of Physics: Condensed Matter</i>. IOP Publishing, 2017. <a href=\"https://doi.org/10.1088/1361-648X/aa532f\">https://doi.org/10.1088/1361-648X/aa532f</a>.","apa":"Wysokiński, M., &#38; Kaczmarczyk, J. (2017). Unconventional superconductivity in generalized Hubbard model role of electron–hole symmetry breaking terms. <i>Journal of Physics: Condensed Matter</i>. IOP Publishing. <a href=\"https://doi.org/10.1088/1361-648X/aa532f\">https://doi.org/10.1088/1361-648X/aa532f</a>","ama":"Wysokiński M, Kaczmarczyk J. Unconventional superconductivity in generalized Hubbard model role of electron–hole symmetry breaking terms. <i>Journal of Physics: Condensed Matter</i>. 2017;29(8). doi:<a href=\"https://doi.org/10.1088/1361-648X/aa532f\">10.1088/1361-648X/aa532f</a>","ista":"Wysokiński M, Kaczmarczyk J. 2017. Unconventional superconductivity in generalized Hubbard model role of electron–hole symmetry breaking terms. Journal of Physics: Condensed Matter. 29(8), 085604.","ieee":"M. Wysokiński and J. Kaczmarczyk, “Unconventional superconductivity in generalized Hubbard model role of electron–hole symmetry breaking terms,” <i>Journal of Physics: Condensed Matter</i>, vol. 29, no. 8. IOP Publishing, 2017."},"external_id":{"isi":["000393955500001"]},"intvolume":"        29","isi":1,"publisher":"IOP Publishing","date_created":"2018-12-11T11:50:29Z","language":[{"iso":"eng"}],"date_updated":"2026-04-16T09:55:16Z","department":[{"_id":"MiLe"}],"author":[{"full_name":"Wysokiński, Marcin","first_name":"Marcin","last_name":"Wysokiński"},{"last_name":"Kaczmarczyk","first_name":"Jan","full_name":"Kaczmarczyk, Jan","orcid":"0000-0002-1629-3675","id":"46C405DE-F248-11E8-B48F-1D18A9856A87"}],"ec_funded":1},{"date_published":"2017-07-14T00:00:00Z","status":"public","type":"journal_article","related_material":{"record":[{"relation":"earlier_version","id":"313","status":"public"}]},"year":"2017","article_number":"023201","_id":"6013","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1611.03701"}],"scopus_import":"1","title":"Experimental evidence for quantum tunneling time","oa_version":"Preprint","abstract":[{"text":"The first hundred attoseconds of the electron dynamics during strong field tunneling ionization are investigated. We quantify theoretically how the electron’s classical trajectories in the continuum emerge from the tunneling process and test the results with those achieved in parallel from attoclock measurements. An especially high sensitivity on the tunneling barrier is accomplished here by comparing the momentum distributions of two atomic species of slightly deviating atomic potentials (argon and krypton) being ionized under absolutely identical conditions with near-infrared laser pulses (1300 nm). The agreement between experiment and theory provides clear evidence for a nonzero tunneling time delay and a nonvanishing longitudinal momentum of the electron at the “tunnel exit.”","lang":"eng"}],"volume":119,"publication":"Physical Review Letters","issue":"2","doi":"10.1103/PhysRevLett.119.023201","day":"14","publication_identifier":{"issn":["0031-9007"],"eissn":["1079-7114"]},"article_processing_charge":"No","quality_controlled":"1","month":"07","publication_status":"published","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","date_updated":"2025-09-18T10:29:08Z","department":[{"_id":"MiLe"}],"language":[{"iso":"eng"}],"author":[{"first_name":"Nicolas","full_name":"Camus, Nicolas","last_name":"Camus"},{"last_name":"Yakaboylu","id":"38CB71F6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5973-0874","first_name":"Enderalp","full_name":"Yakaboylu, Enderalp"},{"first_name":"Lutz","full_name":"Fechner, Lutz","last_name":"Fechner"},{"full_name":"Klaiber, Michael","first_name":"Michael","last_name":"Klaiber"},{"full_name":"Laux, Martin","first_name":"Martin","last_name":"Laux"},{"full_name":"Mi, Yonghao","first_name":"Yonghao","last_name":"Mi"},{"last_name":"Hatsagortsyan","full_name":"Hatsagortsyan, Karen Z.","first_name":"Karen Z."},{"first_name":"Thomas","full_name":"Pfeifer, Thomas","last_name":"Pfeifer"},{"full_name":"Keitel, Christoph H.","first_name":"Christoph H.","last_name":"Keitel"},{"full_name":"Moshammer, Robert","first_name":"Robert","last_name":"Moshammer"}],"oa":1,"arxiv":1,"fulldoi":"https://doi.org/10.1103/PhysRevLett.119.023201","citation":{"short":"N. Camus, E. Yakaboylu, L. Fechner, M. Klaiber, M. Laux, Y. Mi, K.Z. Hatsagortsyan, T. Pfeifer, C.H. Keitel, R. Moshammer, Physical Review Letters 119 (2017).","chicago":"Camus, Nicolas, Enderalp Yakaboylu, Lutz Fechner, Michael Klaiber, Martin Laux, Yonghao Mi, Karen Z. Hatsagortsyan, Thomas Pfeifer, Christoph H. Keitel, and Robert Moshammer. “Experimental Evidence for Quantum Tunneling Time.” <i>Physical Review Letters</i>. American Physical Society, 2017. <a href=\"https://doi.org/10.1103/PhysRevLett.119.023201\">https://doi.org/10.1103/PhysRevLett.119.023201</a>.","mla":"Camus, Nicolas, et al. “Experimental Evidence for Quantum Tunneling Time.” <i>Physical Review Letters</i>, vol. 119, no. 2, 023201, American Physical Society, 2017, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.119.023201\">10.1103/PhysRevLett.119.023201</a>.","ista":"Camus N, Yakaboylu E, Fechner L, Klaiber M, Laux M, Mi Y, Hatsagortsyan KZ, Pfeifer T, Keitel CH, Moshammer R. 2017. Experimental evidence for quantum tunneling time. Physical Review Letters. 119(2), 023201.","ieee":"N. Camus <i>et al.</i>, “Experimental evidence for quantum tunneling time,” <i>Physical Review Letters</i>, vol. 119, no. 2. American Physical Society, 2017.","apa":"Camus, N., Yakaboylu, E., Fechner, L., Klaiber, M., Laux, M., Mi, Y., … Moshammer, R. (2017). Experimental evidence for quantum tunneling time. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.119.023201\">https://doi.org/10.1103/PhysRevLett.119.023201</a>","ama":"Camus N, Yakaboylu E, Fechner L, et al. Experimental evidence for quantum tunneling time. <i>Physical Review Letters</i>. 2017;119(2). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.119.023201\">10.1103/PhysRevLett.119.023201</a>"},"external_id":{"isi":["000405514700003"],"arxiv":["1611.03701"]},"intvolume":"       119","isi":1,"publisher":"American Physical Society","date_created":"2019-02-14T15:24:13Z"}]