[{"language":[{"iso":"eng"}],"isi":1,"scopus_import":"1","type":"journal_article","day":"09","ddc":["530"],"license":"https://creativecommons.org/licenses/by/4.0/","date_published":"2020-10-09T00:00:00Z","date_created":"2020-10-13T09:48:59Z","status":"public","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).","project":[{"call_identifier":"H2020","_id":"260C2330-B435-11E9-9278-68D0E5697425","name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411"},{"_id":"26031614-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Quantum rotations in the presence of a many-body environment","grant_number":"P29902"},{"call_identifier":"H2020","_id":"2688CF98-B435-11E9-9278-68D0E5697425","name":"Angulon: physics and applications of a new quasiparticle","grant_number":"801770"}],"publication_status":"published","publisher":"Springer Nature","ec_funded":1,"oa_version":"Published Version","title":"Filtering spins by scattering from a lattice of point magnets","article_processing_charge":"Yes","year":"2020","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"},{"last_name":"Volosniev","id":"37D278BC-F248-11E8-B48F-1D18A9856A87","first_name":"Artem","full_name":"Volosniev, Artem","orcid":"0000-0003-0393-5525"}],"volume":3,"department":[{"_id":"MiLe"}],"publication":"Communications Physics","intvolume":"         3","_id":"8652","abstract":[{"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.","lang":"eng"}],"file":[{"checksum":"60cd35b99f0780acffc7b6060e49ec8b","creator":"dernst","date_created":"2020-10-14T15:16:28Z","file_size":1462934,"success":1,"content_type":"application/pdf","file_id":"8662","access_level":"open_access","date_updated":"2020-10-14T15:16:28Z","relation":"main_file","file_name":"2020_CommPhysics_Ghazaryan.pdf"}],"article_type":"original","month":"10","oa":1,"corr_author":"1","external_id":{"isi":["000581681000001"]},"date_updated":"2025-04-14T07:43:50Z","publication_identifier":{"issn":["2399-3650"]},"doi":"10.1038/s42005-020-00445-8","has_accepted_license":"1","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"quality_controlled":"1","file_date_updated":"2020-10-14T15:16:28Z","citation":{"ama":"Ghazaryan A, Lemeshko M, Volosniev A. Filtering spins by scattering from a lattice of point magnets. <i>Communications Physics</i>. 2020;3. doi:<a href=\"https://doi.org/10.1038/s42005-020-00445-8\">10.1038/s42005-020-00445-8</a>","short":"A. Ghazaryan, M. Lemeshko, A. Volosniev, Communications Physics 3 (2020).","ieee":"A. Ghazaryan, M. Lemeshko, and A. Volosniev, “Filtering spins by scattering from a lattice of point magnets,” <i>Communications Physics</i>, 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.","apa":"Ghazaryan, A., Lemeshko, M., &#38; Volosniev, A. (2020). Filtering spins by scattering from a lattice of point magnets. <i>Communications Physics</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s42005-020-00445-8\">https://doi.org/10.1038/s42005-020-00445-8</a>","mla":"Ghazaryan, Areg, et al. “Filtering Spins by Scattering from a Lattice of Point Magnets.” <i>Communications Physics</i>, vol. 3, 178, Springer Nature, 2020, doi:<a href=\"https://doi.org/10.1038/s42005-020-00445-8\">10.1038/s42005-020-00445-8</a>.","chicago":"Ghazaryan, Areg, Mikhail Lemeshko, and Artem Volosniev. “Filtering Spins by Scattering from a Lattice of Point Magnets.” <i>Communications Physics</i>. Springer Nature, 2020. <a href=\"https://doi.org/10.1038/s42005-020-00445-8\">https://doi.org/10.1038/s42005-020-00445-8</a>."},"article_number":"178","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8"},{"file_date_updated":"2020-10-28T11:53:12Z","citation":{"ieee":"E. Paris <i>et al.</i>, “Strain engineering of the charge and spin-orbital interactions in Sr2IrO4,” <i>Proceedings of the National Academy of Sciences of the United States of America</i>, vol. 117, no. 40. National Academy of Sciences, pp. 24764–24770, 2020.","chicago":"Paris, Eugenio, Yi Tseng, Ekaterina Paerschke, Wenliang Zhang, Mary H Upton, Anna Efimenko, Katharina Rolfs, et al. “Strain Engineering of the Charge and Spin-Orbital Interactions in Sr2IrO4.” <i>Proceedings of the National Academy of Sciences of the United States of America</i>. National Academy of Sciences, 2020. <a href=\"https://doi.org/10.1073/pnas.2012043117\">https://doi.org/10.1073/pnas.2012043117</a>.","mla":"Paris, Eugenio, et al. “Strain Engineering of the Charge and Spin-Orbital Interactions in Sr2IrO4.” <i>Proceedings of the National Academy of Sciences of the United States of America</i>, vol. 117, no. 40, National Academy of Sciences, 2020, pp. 24764–70, doi:<a href=\"https://doi.org/10.1073/pnas.2012043117\">10.1073/pnas.2012043117</a>.","apa":"Paris, E., Tseng, Y., Paerschke, E., Zhang, W., Upton, M. H., Efimenko, A., … Schmitt, T. (2020). Strain engineering of the charge and spin-orbital interactions in Sr2IrO4. <i>Proceedings of the National Academy of Sciences of the United States of America</i>. National Academy of Sciences. <a href=\"https://doi.org/10.1073/pnas.2012043117\">https://doi.org/10.1073/pnas.2012043117</a>","ista":"Paris E, Tseng Y, Paerschke E, Zhang W, Upton MH, Efimenko A, Rolfs K, McNally DE, Maurel L, Naamneh M, Caputo M, Strocov VN, Wang Z, Casa D, Schneider CW, Pomjakushina E, Wohlfeld K, Radovic M, Schmitt T. 2020. Strain engineering of the charge and spin-orbital interactions in Sr2IrO4. Proceedings of the National Academy of Sciences of the United States of America. 117(40), 24764–24770.","ama":"Paris E, Tseng Y, Paerschke E, et al. Strain engineering of the charge and spin-orbital interactions in Sr2IrO4. <i>Proceedings of the National Academy of Sciences of the United States of America</i>. 2020;117(40):24764-24770. doi:<a href=\"https://doi.org/10.1073/pnas.2012043117\">10.1073/pnas.2012043117</a>","short":"E. Paris, Y. Tseng, E. Paerschke, W. Zhang, M.H. Upton, A. Efimenko, K. Rolfs, D.E. McNally, L. Maurel, M. Naamneh, M. Caputo, V.N. Strocov, Z. Wang, D. Casa, C.W. Schneider, E. Pomjakushina, K. Wohlfeld, M. Radovic, T. Schmitt, Proceedings of the National Academy of Sciences of the United States of America 117 (2020) 24764–24770."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","quality_controlled":"1","doi":"10.1073/pnas.2012043117","has_accepted_license":"1","tmp":{"image":"/images/cc_by_nc_nd.png","name":"Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode","short":"CC BY-NC-ND (4.0)"},"publication_identifier":{"eissn":["1091-6490"],"issn":["0027-8424"]},"external_id":{"pmid":["32958669"],"isi":["000579059100029"],"arxiv":["2009.12262"]},"date_updated":"2025-07-10T11:57:17Z","oa":1,"abstract":[{"text":"In the high spin–orbit-coupled Sr2IrO4, the high sensitivity of the ground state to the details of the local lattice structure shows a large potential for the manipulation of the functional properties by inducing local lattice distortions. We use epitaxial strain to modify the Ir–O bond geometry in Sr2IrO4 and perform momentum-dependent resonant inelastic X-ray scattering (RIXS) at the metal and at the ligand sites to unveil the response of the low-energy elementary excitations. We observe that the pseudospin-wave dispersion for tensile-strained Sr2IrO4 films displays large softening along the [h,0] direction, while along the [h,h] direction it shows hardening. This evolution reveals a renormalization of the magnetic interactions caused by a strain-driven cross-over from anisotropic to isotropic interactions between the magnetic moments. Moreover, we detect dispersive electron–hole pair excitations which shift to lower (higher) energies upon compressive (tensile) strain, manifesting a reduction (increase) in the size of the charge gap. This behavior shows an intimate coupling between charge excitations and lattice distortions in Sr2IrO4, originating from the modified hopping elements between the t2g orbitals. Our work highlights the central role played by the lattice degrees of freedom in determining both the pseudospin and charge excitations of Sr2IrO4 and provides valuable information toward the control of the ground state of complex oxides in the presence of high spin–orbit coupling.","lang":"eng"}],"_id":"8699","intvolume":"       117","file":[{"file_id":"8715","file_size":1176522,"date_created":"2020-10-28T11:53:12Z","success":1,"content_type":"application/pdf","creator":"cziletti","checksum":"1638fa36b442e2868576c6dd7d6dc505","file_name":"2020_PNAS_Paris.pdf","relation":"main_file","access_level":"open_access","date_updated":"2020-10-28T11:53:12Z"}],"article_type":"original","month":"10","volume":117,"department":[{"_id":"MiLe"}],"publication":"Proceedings of the National Academy of Sciences of the United States of America","year":"2020","author":[{"full_name":"Paris, Eugenio","first_name":"Eugenio","last_name":"Paris"},{"full_name":"Tseng, Yi","first_name":"Yi","last_name":"Tseng"},{"full_name":"Paerschke, Ekaterina","first_name":"Ekaterina","last_name":"Paerschke","id":"8275014E-6063-11E9-9B7F-6338E6697425","orcid":"0000-0003-0853-8182"},{"last_name":"Zhang","full_name":"Zhang, Wenliang","first_name":"Wenliang"},{"first_name":"Mary H","full_name":"Upton, Mary H","last_name":"Upton"},{"last_name":"Efimenko","first_name":"Anna","full_name":"Efimenko, Anna"},{"full_name":"Rolfs, Katharina","first_name":"Katharina","last_name":"Rolfs"},{"first_name":"Daniel E","full_name":"McNally, Daniel E","last_name":"McNally"},{"full_name":"Maurel, Laura","first_name":"Laura","last_name":"Maurel"},{"last_name":"Naamneh","full_name":"Naamneh, Muntaser","first_name":"Muntaser"},{"first_name":"Marco","full_name":"Caputo, Marco","last_name":"Caputo"},{"last_name":"Strocov","full_name":"Strocov, Vladimir N","first_name":"Vladimir N"},{"last_name":"Wang","full_name":"Wang, Zhiming","first_name":"Zhiming"},{"last_name":"Casa","first_name":"Diego","full_name":"Casa, Diego"},{"last_name":"Schneider","full_name":"Schneider, Christof W","first_name":"Christof W"},{"last_name":"Pomjakushina","first_name":"Ekaterina","full_name":"Pomjakushina, Ekaterina"},{"first_name":"Krzysztof","full_name":"Wohlfeld, Krzysztof","last_name":"Wohlfeld"},{"first_name":"Milan","full_name":"Radovic, Milan","last_name":"Radovic"},{"full_name":"Schmitt, Thorsten","first_name":"Thorsten","last_name":"Schmitt"}],"arxiv":1,"pmid":1,"oa_version":"Published Version","ec_funded":1,"article_processing_charge":"No","title":"Strain engineering of the charge and spin-orbital interactions in Sr2IrO4","publication_status":"published","publisher":"National Academy of Sciences","status":"public","date_created":"2020-10-25T23:01:17Z","acknowledgement":"We gratefully acknowledge C. Sahle for experimental support at the ID20 beamline of the ESRF. The soft X-ray experiments were carried out at the ADRESS beamline of the Swiss Light Source, Paul Scherrer Institut (PSI). E. Paris and T.S. thank X. Lu and C. Monney for valuable discussions. The work at PSI is supported by the Swiss National Science Foundation (SNSF) through Project 200021_178867, the NCCR (National Centre of Competence in Research) MARVEL (Materials’ Revolution: Computational Design and Discovery of Novel Materials) and the Sinergia network Mott Physics Beyond the Heisenberg Model (MPBH) (SNSF Research Grants CRSII2_160765/1 and CRSII2_141962). K.W. acknowledges support by the Narodowe Centrum Nauki Projects 2016/22/E/ST3/00560 and 2016/23/B/ST3/00839. E.M.P. and M.N. acknowledge funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie Grant Agreements 754411 and 701647, respectively. M.R. was supported by the Swiss National Science Foundation under Project 200021 – 182695. This research used resources of the APS, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract DE-AC02-06CH11357.","project":[{"_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"754411","name":"ISTplus - Postdoctoral Fellowships"}],"date_published":"2020-10-06T00:00:00Z","issue":"40","type":"journal_article","ddc":["530"],"page":"24764-24770","day":"06","license":"https://creativecommons.org/licenses/by-nc-nd/4.0/","language":[{"iso":"eng"}],"isi":1,"scopus_import":"1"},{"scopus_import":"1","language":[{"iso":"eng"}],"ddc":["530"],"day":"26","type":"journal_article","issue":"3","date_published":"2020-08-26T00:00:00Z","project":[{"_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411"}],"status":"public","date_created":"2020-11-06T07:21:00Z","publisher":"MDPI","publication_status":"published","article_processing_charge":"No","title":"Evolution of spin-orbital entanglement with increasing ising spin-orbit coupling","oa_version":"Published Version","ec_funded":1,"arxiv":1,"author":[{"last_name":"Gotfryd","full_name":"Gotfryd, Dorota","first_name":"Dorota"},{"first_name":"Ekaterina","full_name":"Paerschke, Ekaterina","last_name":"Paerschke","id":"8275014E-6063-11E9-9B7F-6338E6697425","orcid":"0000-0003-0853-8182"},{"first_name":"Krzysztof","full_name":"Wohlfeld, Krzysztof","last_name":"Wohlfeld"},{"last_name":"Oleś","first_name":"Andrzej M.","full_name":"Oleś, Andrzej M."}],"year":"2020","publication":"Condensed Matter","department":[{"_id":"MiLe"}],"volume":5,"month":"08","article_type":"original","file":[{"checksum":"a57a698ff99a11b6665bafd1bac7afbc","creator":"dernst","content_type":"application/pdf","success":1,"date_created":"2020-11-06T07:24:40Z","file_size":768336,"file_id":"8727","date_updated":"2020-11-06T07:24:40Z","access_level":"open_access","relation":"main_file","file_name":"2020_CondensedMatter_Gotfryd.pdf"}],"_id":"8726","abstract":[{"text":"Several realistic spin-orbital models for transition metal oxides go beyond the classical expectations and could be understood only by employing the quantum entanglement. Experiments on these materials confirm that spin-orbital entanglement has measurable consequences. Here, we capture the essential features of spin-orbital entanglement in complex quantum matter utilizing 1D spin-orbital model which accommodates SU(2)⊗SU(2) symmetric Kugel-Khomskii superexchange as well as the Ising on-site spin-orbit coupling. Building on the results obtained for full and effective models in the regime of strong spin-orbit coupling, we address the question whether the entanglement found on superexchange bonds always increases when the Ising spin-orbit coupling is added. We show that (i) quantum entanglement is amplified by strong spin-orbit coupling and, surprisingly, (ii) almost classical disentangled states are possible. We complete the latter case by analyzing how the entanglement existing for intermediate values of spin-orbit coupling can disappear for higher values of this coupling.","lang":"eng"}],"intvolume":"         5","oa":1,"date_updated":"2025-04-14T07:43:50Z","external_id":{"arxiv":["2009.11773"]},"publication_identifier":{"issn":["2410-3896"]},"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"has_accepted_license":"1","doi":"10.3390/condmat5030053","quality_controlled":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_number":"53","citation":{"apa":"Gotfryd, D., Paerschke, E., Wohlfeld, K., &#38; Oleś, A. M. (2020). Evolution of spin-orbital entanglement with increasing ising spin-orbit coupling. <i>Condensed Matter</i>. MDPI. <a href=\"https://doi.org/10.3390/condmat5030053\">https://doi.org/10.3390/condmat5030053</a>","ista":"Gotfryd D, Paerschke E, Wohlfeld K, Oleś AM. 2020. Evolution of spin-orbital entanglement with increasing ising spin-orbit coupling. Condensed Matter. 5(3), 53.","mla":"Gotfryd, Dorota, et al. “Evolution of Spin-Orbital Entanglement with Increasing Ising Spin-Orbit Coupling.” <i>Condensed Matter</i>, vol. 5, no. 3, 53, MDPI, 2020, doi:<a href=\"https://doi.org/10.3390/condmat5030053\">10.3390/condmat5030053</a>.","chicago":"Gotfryd, Dorota, Ekaterina Paerschke, Krzysztof Wohlfeld, and Andrzej M. Oleś. “Evolution of Spin-Orbital Entanglement with Increasing Ising Spin-Orbit Coupling.” <i>Condensed Matter</i>. MDPI, 2020. <a href=\"https://doi.org/10.3390/condmat5030053\">https://doi.org/10.3390/condmat5030053</a>.","ieee":"D. Gotfryd, E. Paerschke, K. Wohlfeld, and A. M. Oleś, “Evolution of spin-orbital entanglement with increasing ising spin-orbit coupling,” <i>Condensed Matter</i>, vol. 5, no. 3. MDPI, 2020.","short":"D. Gotfryd, E. Paerschke, K. Wohlfeld, A.M. Oleś, Condensed Matter 5 (2020).","ama":"Gotfryd D, Paerschke E, Wohlfeld K, Oleś AM. Evolution of spin-orbital entanglement with increasing ising spin-orbit coupling. <i>Condensed Matter</i>. 2020;5(3). doi:<a href=\"https://doi.org/10.3390/condmat5030053\">10.3390/condmat5030053</a>"},"file_date_updated":"2020-11-06T07:24:40Z"},{"language":[{"iso":"eng"}],"isi":1,"scopus_import":"1","type":"journal_article","day":"01","issue":"14","date_published":"2020-10-01T00:00:00Z","date_created":"2020-11-18T07:34:17Z","status":"public","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).","project":[{"name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411","call_identifier":"H2020","_id":"260C2330-B435-11E9-9278-68D0E5697425"},{"name":"Analysis of quantum many-body systems","grant_number":"694227","_id":"25C6DC12-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"},{"call_identifier":"H2020","_id":"2688CF98-B435-11E9-9278-68D0E5697425","name":"Angulon: physics and applications of a new quasiparticle","grant_number":"801770"}],"publication_status":"published","publisher":"American Physical Society","arxiv":1,"oa_version":"Preprint","ec_funded":1,"article_processing_charge":"No","title":"Quantum impurity model for anyons","year":"2020","author":[{"id":"38CB71F6-F248-11E8-B48F-1D18A9856A87","last_name":"Yakaboylu","first_name":"Enderalp","full_name":"Yakaboylu, Enderalp","orcid":"0000-0001-5973-0874"},{"orcid":"0000-0001-9666-3543","id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87","last_name":"Ghazaryan","full_name":"Ghazaryan, Areg","first_name":"Areg"},{"last_name":"Lundholm","first_name":"D.","full_name":"Lundholm, D."},{"last_name":"Rougerie","first_name":"N.","full_name":"Rougerie, N."},{"last_name":"Lemeshko","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","first_name":"Mikhail","full_name":"Lemeshko, Mikhail","orcid":"0000-0002-6990-7802"},{"orcid":"0000-0002-6781-0521","full_name":"Seiringer, Robert","first_name":"Robert","id":"4AFD0470-F248-11E8-B48F-1D18A9856A87","last_name":"Seiringer"}],"volume":102,"department":[{"_id":"MiLe"},{"_id":"RoSe"}],"publication":"Physical Review B","intvolume":"       102","_id":"8769","abstract":[{"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.","lang":"eng"}],"month":"10","article_type":"original","oa":1,"external_id":{"arxiv":["1912.07890"],"isi":["000582563300001"]},"date_updated":"2025-04-14T07:26:54Z","publication_identifier":{"eissn":["2469-9969"],"issn":["2469-9950"]},"doi":"10.1103/physrevb.102.144109","quality_controlled":"1","citation":{"ama":"Yakaboylu E, Ghazaryan A, Lundholm D, Rougerie N, Lemeshko M, Seiringer R. Quantum impurity model for anyons. <i>Physical Review B</i>. 2020;102(14). doi:<a href=\"https://doi.org/10.1103/physrevb.102.144109\">10.1103/physrevb.102.144109</a>","short":"E. Yakaboylu, A. Ghazaryan, D. Lundholm, N. Rougerie, M. Lemeshko, R. Seiringer, Physical Review B 102 (2020).","ieee":"E. Yakaboylu, A. Ghazaryan, D. Lundholm, N. Rougerie, M. Lemeshko, and R. Seiringer, “Quantum impurity model for anyons,” <i>Physical Review B</i>, vol. 102, no. 14. American Physical Society, 2020.","chicago":"Yakaboylu, Enderalp, Areg Ghazaryan, D. Lundholm, N. Rougerie, Mikhail Lemeshko, and Robert Seiringer. “Quantum Impurity Model for Anyons.” <i>Physical Review B</i>. American Physical Society, 2020. <a href=\"https://doi.org/10.1103/physrevb.102.144109\">https://doi.org/10.1103/physrevb.102.144109</a>.","apa":"Yakaboylu, E., Ghazaryan, A., Lundholm, D., Rougerie, N., Lemeshko, M., &#38; Seiringer, R. (2020). Quantum impurity model for anyons. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevb.102.144109\">https://doi.org/10.1103/physrevb.102.144109</a>","mla":"Yakaboylu, Enderalp, et al. “Quantum Impurity Model for Anyons.” <i>Physical Review B</i>, vol. 102, no. 14, 144109, American Physical Society, 2020, doi:<a href=\"https://doi.org/10.1103/physrevb.102.144109\">10.1103/physrevb.102.144109</a>.","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."},"article_number":"144109","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","main_file_link":[{"url":"https://arxiv.org/abs/1912.07890","open_access":"1"}]},{"publication_identifier":{"eissn":["2469-9969"],"issn":["2469-9950"]},"doi":"10.1103/PhysRevB.101.020504","quality_controlled":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","main_file_link":[{"url":"https://arxiv.org/abs/1907.02077","open_access":"1"}],"citation":{"ieee":"A. Ghazaryan, P. L. S. Lopes, P. Hosur, M. J. Gilbert, and P. Ghaemi, “Effect of Zeeman coupling on the Majorana vortex modes in iron-based topological superconductors,” <i>Physical Review B</i>, vol. 101, no. 2. American Physical Society, 2020.","chicago":"Ghazaryan, Areg, P. L.S. Lopes, Pavan Hosur, Matthew J. Gilbert, and Pouyan Ghaemi. “Effect of Zeeman Coupling on the Majorana Vortex Modes in Iron-Based Topological Superconductors.” <i>Physical Review B</i>. American Physical Society, 2020. <a href=\"https://doi.org/10.1103/PhysRevB.101.020504\">https://doi.org/10.1103/PhysRevB.101.020504</a>.","ista":"Ghazaryan A, Lopes PLS, Hosur P, Gilbert MJ, Ghaemi P. 2020. Effect of Zeeman coupling on the Majorana vortex modes in iron-based topological superconductors. Physical Review B. 101(2), 020504.","mla":"Ghazaryan, Areg, et al. “Effect of Zeeman Coupling on the Majorana Vortex Modes in Iron-Based Topological Superconductors.” <i>Physical Review B</i>, vol. 101, no. 2, 020504, American Physical Society, 2020, doi:<a href=\"https://doi.org/10.1103/PhysRevB.101.020504\">10.1103/PhysRevB.101.020504</a>.","apa":"Ghazaryan, A., Lopes, P. L. S., Hosur, P., Gilbert, M. J., &#38; Ghaemi, P. (2020). Effect of Zeeman coupling on the Majorana vortex modes in iron-based topological superconductors. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevB.101.020504\">https://doi.org/10.1103/PhysRevB.101.020504</a>","ama":"Ghazaryan A, Lopes PLS, Hosur P, Gilbert MJ, Ghaemi P. Effect of Zeeman coupling on the Majorana vortex modes in iron-based topological superconductors. <i>Physical Review B</i>. 2020;101(2). doi:<a href=\"https://doi.org/10.1103/PhysRevB.101.020504\">10.1103/PhysRevB.101.020504</a>","short":"A. Ghazaryan, P.L.S. Lopes, P. Hosur, M.J. Gilbert, P. Ghaemi, Physical Review B 101 (2020)."},"article_number":"020504","department":[{"_id":"MiLe"}],"publication":"Physical Review B","volume":101,"month":"01","article_type":"original","_id":"7428","abstract":[{"text":"In the superconducting regime of FeTe(1−x)Sex, there exist two types of vortices which are distinguished by the presence or absence of zero-energy states in their core. To understand their origin, we examine the interplay of Zeeman coupling and superconducting pairings in three-dimensional metals with band inversion. Weak Zeeman fields are found to suppress intraorbital spin-singlet pairing, known to localize the states at the ends of the vortices on the surface. On the other hand, an orbital-triplet pairing is shown to be stable against Zeeman interactions, but leads to delocalized zero-energy Majorana modes which extend through the vortex. In contrast, the finite-energy vortex modes remain localized at the vortex ends even when the pairing is of orbital-triplet form. Phenomenologically, this manifests as an observed disappearance of zero-bias peaks within the cores of topological vortices upon an increase of the applied magnetic field. The presence of magnetic impurities in FeTe(1−x)Sex, which are attracted to the vortices, would lead to such Zeeman-induced delocalization of Majorana modes in a fraction of vortices that capture a large enough number of magnetic impurities. Our results provide an explanation for the dichotomy between topological and nontopological vortices recently observed in FeTe(1−x)Sex.","lang":"eng"}],"intvolume":"       101","oa":1,"external_id":{"arxiv":["1907.02077"],"isi":["000506843500001"]},"date_updated":"2025-07-10T11:54:37Z","status":"public","date_created":"2020-02-02T23:01:01Z","publisher":"American Physical Society","publication_status":"published","oa_version":"Preprint","title":"Effect of Zeeman coupling on the Majorana vortex modes in iron-based topological superconductors","article_processing_charge":"No","arxiv":1,"year":"2020","author":[{"orcid":"0000-0001-9666-3543","last_name":"Ghazaryan","id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87","full_name":"Ghazaryan, Areg","first_name":"Areg"},{"full_name":"Lopes, P. L.S.","first_name":"P. L.S.","last_name":"Lopes"},{"last_name":"Hosur","full_name":"Hosur, Pavan","first_name":"Pavan"},{"first_name":"Matthew J.","full_name":"Gilbert, Matthew J.","last_name":"Gilbert"},{"last_name":"Ghaemi","first_name":"Pouyan","full_name":"Ghaemi, Pouyan"}],"scopus_import":"1","language":[{"iso":"eng"}],"isi":1,"type":"journal_article","day":"13","issue":"2","date_published":"2020-01-13T00:00:00Z"},{"department":[{"_id":"MiLe"}],"publication":"Physical Review Research","volume":2,"article_type":"original","month":"03","_id":"7594","intvolume":"         2","abstract":[{"lang":"eng","text":"The concept of the entanglement between spin and orbital degrees of freedom plays a crucial role in our understanding of various phases and exotic ground states in a broad class of materials, including orbitally ordered materials and spin liquids. We investigate how the spin-orbital entanglement in a Mott insulator depends on the value of the spin-orbit coupling of the relativistic origin. To this end, we numerically diagonalize a one-dimensional spin-orbital model with Kugel-Khomskii exchange interactions between spins and orbitals on different sites supplemented by the on-site spin-orbit coupling. In the regime of small spin-orbit coupling with regard to the spin-orbital exchange, the ground state to a large extent resembles the one obtained in the limit of vanishing spin-orbit coupling. On the other hand, for large spin-orbit coupling the ground state can, depending on the model parameters, either still show negligible spin-orbital entanglement or evolve to a highly spin-orbitally-entangled phase with completely distinct properties that are described by an effective XXZ model. The presented results suggest that (i) the spin-orbital entanglement may be induced by large on-site spin-orbit coupling, as found in the 5d transition metal oxides, such as the iridates; (ii) for Mott insulators with weak spin-orbit coupling of Ising type, such as, e.g., the alkali hyperoxides, the effects of the spin-orbit coupling on the ground state can, in the first order of perturbation theory, be neglected."}],"file":[{"file_name":"2020_PhysRevResearch_Gotfryd.pdf","relation":"main_file","date_updated":"2020-07-14T12:48:00Z","access_level":"open_access","file_id":"7610","file_size":1436735,"date_created":"2020-03-23T10:18:38Z","content_type":"application/pdf","creator":"dernst","checksum":"1be551fd5f5583635076017d7391ffdc"}],"oa":1,"date_updated":"2024-10-21T06:02:21Z","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"doi":"10.1103/PhysRevResearch.2.013353","has_accepted_license":"1","quality_controlled":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","file_date_updated":"2020-07-14T12:48:00Z","citation":{"ama":"Gotfryd D, Paerschke E, Chaloupka J, Oles AM, Wohlfeld K. How spin-orbital entanglement depends on the spin-orbit coupling in a Mott insulator. <i>Physical Review Research</i>. 2020;2(1). doi:<a href=\"https://doi.org/10.1103/PhysRevResearch.2.013353\">10.1103/PhysRevResearch.2.013353</a>","short":"D. Gotfryd, E. Paerschke, J. Chaloupka, A.M. Oles, K. Wohlfeld, Physical Review Research 2 (2020).","ieee":"D. Gotfryd, E. Paerschke, J. Chaloupka, A. M. Oles, and K. Wohlfeld, “How spin-orbital entanglement depends on the spin-orbit coupling in a Mott insulator,” <i>Physical Review Research</i>, vol. 2, no. 1. American Physical Society, 2020.","chicago":"Gotfryd, Dorota, Ekaterina Paerschke, Jiri Chaloupka, Andrzej M. Oles, and Krzysztof Wohlfeld. “How Spin-Orbital Entanglement Depends on the Spin-Orbit Coupling in a Mott Insulator.” <i>Physical Review Research</i>. American Physical Society, 2020. <a href=\"https://doi.org/10.1103/PhysRevResearch.2.013353\">https://doi.org/10.1103/PhysRevResearch.2.013353</a>.","mla":"Gotfryd, Dorota, et al. “How Spin-Orbital Entanglement Depends on the Spin-Orbit Coupling in a Mott Insulator.” <i>Physical Review Research</i>, vol. 2, no. 1, 013353, American Physical Society, 2020, doi:<a href=\"https://doi.org/10.1103/PhysRevResearch.2.013353\">10.1103/PhysRevResearch.2.013353</a>.","apa":"Gotfryd, D., Paerschke, E., Chaloupka, J., Oles, A. M., &#38; Wohlfeld, K. (2020). How spin-orbital entanglement depends on the spin-orbit coupling in a Mott insulator. <i>Physical Review Research</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevResearch.2.013353\">https://doi.org/10.1103/PhysRevResearch.2.013353</a>","ista":"Gotfryd D, Paerschke E, Chaloupka J, Oles AM, Wohlfeld K. 2020. How spin-orbital entanglement depends on the spin-orbit coupling in a Mott insulator. Physical Review Research. 2(1), 013353."},"article_number":"013353","scopus_import":"1","language":[{"iso":"eng"}],"type":"journal_article","ddc":["530"],"day":"20","issue":"1","date_published":"2020-03-20T00:00:00Z","project":[{"grant_number":"754411","name":"ISTplus - Postdoctoral Fellowships","call_identifier":"H2020","_id":"260C2330-B435-11E9-9278-68D0E5697425"}],"status":"public","date_created":"2020-03-20T15:21:10Z","publisher":"American Physical Society","publication_status":"published","ec_funded":1,"oa_version":"Published Version","title":"How spin-orbital entanglement depends on the spin-orbit coupling in a Mott insulator","article_processing_charge":"No","year":"2020","author":[{"last_name":"Gotfryd","first_name":"Dorota","full_name":"Gotfryd, Dorota"},{"first_name":"Ekaterina","full_name":"Paerschke, Ekaterina","id":"8275014E-6063-11E9-9B7F-6338E6697425","last_name":"Paerschke","orcid":"0000-0003-0853-8182"},{"full_name":"Chaloupka, Jiri","first_name":"Jiri","last_name":"Chaloupka"},{"last_name":"Oles","first_name":"Andrzej M.","full_name":"Oles, Andrzej M."},{"last_name":"Wohlfeld","full_name":"Wohlfeld, Krzysztof","first_name":"Krzysztof"}]},{"volume":8,"publication":"Mathematics","department":[{"_id":"MiLe"}],"file":[{"creator":"dernst","checksum":"a05a7df724522203d079673a0d4de4bc","file_id":"7887","file_size":990540,"date_created":"2020-05-25T14:42:22Z","content_type":"application/pdf","relation":"main_file","date_updated":"2020-07-14T12:48:04Z","access_level":"open_access","file_name":"2020_Mathematics_Armstrong.pdf"}],"abstract":[{"lang":"eng","text":"A few-body cluster is a building block of a many-body system in a gas phase provided the temperature at most is of the order of the binding energy of this cluster. Here we illustrate this statement by considering a system of tubes filled with dipolar distinguishable particles. We calculate the partition function, which determines the probability to find a few-body cluster at a given temperature. The input for our calculations—the energies of few-body clusters—is estimated using the harmonic approximation. We first describe and demonstrate the validity of our numerical procedure. Then we discuss the results featuring melting of the zero-temperature many-body state into a gas of free particles and few-body clusters. For temperature higher than its binding energy threshold, the dimers overwhelmingly dominate the ensemble, where the remaining probability is in free particles. At very high temperatures free (harmonic oscillator trap-bound) particle dominance is eventually reached. This structure evolution appears both for one and two particles in each layer providing crucial information about the behavior of ultracold dipolar gases. The investigation addresses the transition region between few- and many-body physics as a function of temperature using a system of ten dipoles in five tubes."}],"_id":"7882","intvolume":"         8","month":"04","article_type":"original","oa":1,"date_updated":"2026-04-02T14:33:47Z","external_id":{"isi":["000531824100024"]},"publication_identifier":{"eissn":["2227-7390"]},"has_accepted_license":"1","doi":"10.3390/math8040484","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"quality_controlled":"1","article_number":"484","file_date_updated":"2020-07-14T12:48:04Z","citation":{"ieee":"J. R. Armstrong, A. S. Jensen, A. Volosniev, and N. T. Zinner, “Clusters in separated tubes of tilted dipoles,” <i>Mathematics</i>, vol. 8, no. 4. MDPI, 2020.","chicago":"Armstrong, Jeremy R., Aksel S. Jensen, Artem Volosniev, and Nikolaj T. Zinner. “Clusters in Separated Tubes of Tilted Dipoles.” <i>Mathematics</i>. MDPI, 2020. <a href=\"https://doi.org/10.3390/math8040484\">https://doi.org/10.3390/math8040484</a>.","ista":"Armstrong JR, Jensen AS, Volosniev A, Zinner NT. 2020. Clusters in separated tubes of tilted dipoles. Mathematics. 8(4), 484.","apa":"Armstrong, J. R., Jensen, A. S., Volosniev, A., &#38; Zinner, N. T. (2020). Clusters in separated tubes of tilted dipoles. <i>Mathematics</i>. MDPI. <a href=\"https://doi.org/10.3390/math8040484\">https://doi.org/10.3390/math8040484</a>","mla":"Armstrong, Jeremy R., et al. “Clusters in Separated Tubes of Tilted Dipoles.” <i>Mathematics</i>, vol. 8, no. 4, 484, MDPI, 2020, doi:<a href=\"https://doi.org/10.3390/math8040484\">10.3390/math8040484</a>.","ama":"Armstrong JR, Jensen AS, Volosniev A, Zinner NT. Clusters in separated tubes of tilted dipoles. <i>Mathematics</i>. 2020;8(4). doi:<a href=\"https://doi.org/10.3390/math8040484\">10.3390/math8040484</a>","short":"J.R. Armstrong, A.S. Jensen, A. Volosniev, N.T. Zinner, Mathematics 8 (2020)."},"user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","isi":1,"language":[{"iso":"eng"}],"scopus_import":"1","ddc":["510"],"day":"01","type":"journal_article","issue":"4","date_published":"2020-04-01T00:00:00Z","date_created":"2020-05-24T22:01:00Z","status":"public","project":[{"call_identifier":"H2020","_id":"260C2330-B435-11E9-9278-68D0E5697425","name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411"}],"publication_status":"published","publisher":"MDPI","title":"Clusters in separated tubes of tilted dipoles","article_processing_charge":"No","ec_funded":1,"oa_version":"Published Version","author":[{"first_name":"Jeremy R.","full_name":"Armstrong, Jeremy R.","last_name":"Armstrong"},{"last_name":"Jensen","first_name":"Aksel S.","full_name":"Jensen, Aksel S."},{"orcid":"0000-0003-0393-5525","id":"37D278BC-F248-11E8-B48F-1D18A9856A87","last_name":"Volosniev","first_name":"Artem","full_name":"Volosniev, Artem"},{"last_name":"Zinner","full_name":"Zinner, Nikolaj T.","first_name":"Nikolaj T."}],"year":"2020"},{"publisher":"The Royal Society","publication_status":"published","acknowledgement":"V.K. thanks the German National Academic Foundation (Studienstiftung des deutschen Volkes) for financial\r\nsupport. J.F.D. is grateful for financial support by the Stordalen Foundation via the Planetary Boundary Research\r\nNetwork (PB.net), the Earth League’s EarthDoc program and the European Research Council Advanced Grant\r\nproject ERA (Earth Resilience in the Anthropocene). We are thankful for support by the Leibniz Association\r\n(project DominoES).\r\nAcknowledgements. This work has been performed in the context of the copan collaboration and the FutureLab on Earth\r\nResilience in the Anthropocene at the Potsdam Institute for Climate Impact Research. Furthermore, we acknowledge\r\ndiscussions with and helpful comments by N. Wunderling, J. Heitzig and M. Wiedermann.","date_created":"2020-11-08T23:01:25Z","status":"public","author":[{"last_name":"Klose","full_name":"Klose, Ann Kristin","first_name":"Ann Kristin"},{"orcid":"0000-0002-6963-0129","first_name":"Volker","full_name":"Karle, Volker","last_name":"Karle","id":"D7C012AE-D7ED-11E9-95E8-1EC5E5697425"},{"last_name":"Winkelmann","full_name":"Winkelmann, Ricarda","first_name":"Ricarda"},{"last_name":"Donges","full_name":"Donges, Jonathan F.","first_name":"Jonathan F."}],"year":"2020","article_processing_charge":"No","title":"Emergence of cascading dynamics in interacting tipping elements of ecology and climate: Cascading dynamics in tipping elements","oa_version":"Published Version","pmid":1,"arxiv":1,"day":"01","ddc":["530","550"],"type":"journal_article","scopus_import":"1","isi":1,"language":[{"iso":"eng"}],"date_published":"2020-06-01T00:00:00Z","issue":"6","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"has_accepted_license":"1","doi":"10.1098/rsos.200599","publication_identifier":{"eissn":["2054-5703"]},"user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","article_number":"200599","citation":{"short":"A.K. Klose, V. Karle, R. Winkelmann, J.F. Donges, Royal Society Open Science 7 (2020).","ama":"Klose AK, Karle V, Winkelmann R, Donges JF. Emergence of cascading dynamics in interacting tipping elements of ecology and climate: Cascading dynamics in tipping elements. <i>Royal Society Open Science</i>. 2020;7(6). doi:<a href=\"https://doi.org/10.1098/rsos.200599\">10.1098/rsos.200599</a>","apa":"Klose, A. K., Karle, V., Winkelmann, R., &#38; Donges, J. F. (2020). Emergence of cascading dynamics in interacting tipping elements of ecology and climate: Cascading dynamics in tipping elements. <i>Royal Society Open Science</i>. The Royal Society. <a href=\"https://doi.org/10.1098/rsos.200599\">https://doi.org/10.1098/rsos.200599</a>","mla":"Klose, Ann Kristin, et al. “Emergence of Cascading Dynamics in Interacting Tipping Elements of Ecology and Climate: Cascading Dynamics in Tipping Elements.” <i>Royal Society Open Science</i>, vol. 7, no. 6, 200599, The Royal Society, 2020, doi:<a href=\"https://doi.org/10.1098/rsos.200599\">10.1098/rsos.200599</a>.","ista":"Klose AK, Karle V, Winkelmann R, Donges JF. 2020. Emergence of cascading dynamics in interacting tipping elements of ecology and climate: Cascading dynamics in tipping elements. Royal Society Open Science. 7(6), 200599.","chicago":"Klose, Ann Kristin, Volker Karle, Ricarda Winkelmann, and Jonathan F. Donges. “Emergence of Cascading Dynamics in Interacting Tipping Elements of Ecology and Climate: Cascading Dynamics in Tipping Elements.” <i>Royal Society Open Science</i>. The Royal Society, 2020. <a href=\"https://doi.org/10.1098/rsos.200599\">https://doi.org/10.1098/rsos.200599</a>.","ieee":"A. K. Klose, V. Karle, R. Winkelmann, and J. F. Donges, “Emergence of cascading dynamics in interacting tipping elements of ecology and climate: Cascading dynamics in tipping elements,” <i>Royal Society Open Science</i>, vol. 7, no. 6. The Royal Society, 2020."},"file_date_updated":"2020-11-09T09:07:11Z","quality_controlled":"1","month":"06","article_type":"original","file":[{"success":1,"date_created":"2020-11-09T09:07:11Z","file_size":1611485,"content_type":"application/pdf","file_id":"8748","checksum":"5505c445de373bfd836eb4d3b48b1f37","creator":"dernst","file_name":"2020_RoyalSocOpenScience_Klose.pdf","access_level":"open_access","date_updated":"2020-11-09T09:07:11Z","relation":"main_file"}],"_id":"8741","abstract":[{"lang":"eng","text":"In ecology, climate and other fields, (sub)systems have been identified that can transition into a qualitatively different state when a critical threshold or tipping point in a driving process is crossed. An understanding of those tipping elements is of great interest given the increasing influence of humans on the biophysical Earth system. Complex interactions exist between tipping elements, e.g. physical mechanisms connect subsystems of the climate system. Based on earlier work on such coupled nonlinear systems, we systematically assessed the qualitative long-term behaviour of interacting tipping elements. We developed an understanding of the consequences of interactions\r\non the tipping behaviour allowing for tipping cascades to emerge under certain conditions. The (narrative) application of\r\nthese qualitative results to real-world examples of interacting tipping elements indicates that tipping cascades with profound consequences may occur: the interacting Greenland ice sheet and thermohaline ocean circulation might tip before the tipping points of the isolated subsystems are crossed. The eutrophication of the first lake in a lake chain might propagate through the following lakes without a crossing of their individual critical nutrient input levels. The possibility of emerging cascading tipping dynamics calls for the development of a unified theory of interacting tipping elements and the quantitative analysis of interacting real-world tipping elements."}],"intvolume":"         7","publication":"Royal Society Open Science","department":[{"_id":"MiLe"}],"volume":7,"date_updated":"2026-04-03T09:26:55Z","external_id":{"arxiv":["1910.12042"],"isi":["000545625200001"],"pmid":["32742700"]},"oa":1},{"author":[{"orcid":"0000-0003-4074-2570","first_name":"Mikhail","full_name":"Maslov, Mikhail","last_name":"Maslov","id":"2E65BB0E-F248-11E8-B48F-1D18A9856A87"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","last_name":"Lemeshko","full_name":"Lemeshko, Mikhail","first_name":"Mikhail","orcid":"0000-0002-6990-7802"},{"orcid":"0000-0001-5973-0874","full_name":"Yakaboylu, Enderalp","first_name":"Enderalp","id":"38CB71F6-F248-11E8-B48F-1D18A9856A87","last_name":"Yakaboylu"}],"year":"2020","arxiv":1,"article_processing_charge":"No","title":"Synthetic spin-orbit coupling mediated by a bosonic environment","ec_funded":1,"oa_version":"Preprint","publication_status":"published","publisher":"American Physical Society","status":"public","date_created":"2020-06-07T22:00:52Z","project":[{"_id":"26031614-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Quantum rotations in the presence of a many-body environment","grant_number":"P29902"},{"name":"Angulon: physics and applications of a new quasiparticle","grant_number":"801770","_id":"2688CF98-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"}],"date_published":"2020-05-01T00:00:00Z","issue":"18","day":"01","type":"journal_article","isi":1,"language":[{"iso":"eng"}],"scopus_import":"1","article_number":"184104 ","citation":{"short":"M. Maslov, M. Lemeshko, E. Yakaboylu, Physical Review B 101 (2020).","ama":"Maslov M, Lemeshko M, Yakaboylu E. Synthetic spin-orbit coupling mediated by a bosonic environment. <i>Physical Review B</i>. 2020;101(18). doi:<a href=\"https://doi.org/10.1103/PhysRevB.101.184104\">10.1103/PhysRevB.101.184104</a>","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.” <i>Physical Review B</i>, vol. 101, no. 18, 184104, American Physical Society, 2020, doi:<a href=\"https://doi.org/10.1103/PhysRevB.101.184104\">10.1103/PhysRevB.101.184104</a>.","apa":"Maslov, M., Lemeshko, M., &#38; Yakaboylu, E. (2020). Synthetic spin-orbit coupling mediated by a bosonic environment. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevB.101.184104\">https://doi.org/10.1103/PhysRevB.101.184104</a>","chicago":"Maslov, Mikhail, Mikhail Lemeshko, and Enderalp Yakaboylu. “Synthetic Spin-Orbit Coupling Mediated by a Bosonic Environment.” <i>Physical Review B</i>. American Physical Society, 2020. <a href=\"https://doi.org/10.1103/PhysRevB.101.184104\">https://doi.org/10.1103/PhysRevB.101.184104</a>.","ieee":"M. Maslov, M. Lemeshko, and E. Yakaboylu, “Synthetic spin-orbit coupling mediated by a bosonic environment,” <i>Physical Review B</i>, vol. 101, no. 18. American Physical Society, 2020."},"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1912.03092"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","quality_controlled":"1","doi":"10.1103/PhysRevB.101.184104","publication_identifier":{"eissn":["2469-9969"],"issn":["2469-9950"]},"related_material":{"record":[{"status":"public","id":"19048","relation":"dissertation_contains"}]},"date_updated":"2026-04-07T11:52:53Z","external_id":{"arxiv":["1912.03092"],"isi":["000530754700003"]},"oa":1,"_id":"7933","intvolume":"       101","abstract":[{"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.","lang":"eng"}],"month":"05","article_type":"original","volume":101,"publication":"Physical Review B","department":[{"_id":"MiLe"}]},{"issue":"9","date_published":"2020-09-01T00:00:00Z","isi":1,"language":[{"iso":"eng"}],"scopus_import":"1","ddc":["530"],"day":"01","type":"journal_article","title":"Detecting composite orders in layered models via machine learning","article_processing_charge":"No","oa_version":"Published Version","ec_funded":1,"author":[{"full_name":"Rzadkowski, Wojciech","first_name":"Wojciech","id":"48C55298-F248-11E8-B48F-1D18A9856A87","last_name":"Rzadkowski","orcid":"0000-0002-1106-4419"},{"first_name":"N","full_name":"Defenu, N","last_name":"Defenu"},{"full_name":"Chiacchiera, S","first_name":"S","last_name":"Chiacchiera"},{"last_name":"Trombettoni","first_name":"A","full_name":"Trombettoni, A"},{"orcid":"0000-0001-8823-9777","full_name":"Bighin, Giacomo","first_name":"Giacomo","last_name":"Bighin","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87"}],"year":"2020","acknowledgement":"We thank Gesualdo Delfino, Michele Fabrizio, Piero Ferrarese, Robert Konik, Christoph Lampert and Mikhail Lemeshko for stimulating discussions at various stages of this work. WR has received funding from the EU Horizon 2020 program under the Marie Skłodowska-Curie Grant Agreement No. 665385 and is a recipient of a DOC Fellowship of the Austrian Academy of Sciences. GB acknowledges support from the Austrian Science Fund (FWF), under project No. M2641-N27. ND acknowledges support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) via Collaborative Research Center SFB 1225 (ISOQUANT)--project-id 273811115--and under Germany's Excellence Strategy 'EXC-2181/1-390900948' (the Heidelberg STRUCTURES Excellence Cluster).","date_created":"2020-10-11T22:01:14Z","status":"public","project":[{"_id":"2564DBCA-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"International IST Doctoral Program","grant_number":"665385"},{"name":"Analytic and machine learning approaches to composite quantum impurities","grant_number":"25681","_id":"05A235A0-7A3F-11EA-A408-12923DDC885E"},{"name":"A path-integral approach to composite impurities","grant_number":"M02641","_id":"26986C82-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"}],"publication_status":"published","publisher":"IOP Publishing","oa":1,"corr_author":"1","date_updated":"2026-04-07T14:20:12Z","related_material":{"record":[{"status":"public","relation":"dissertation_contains","id":"10759"}]},"external_id":{"isi":["000573298000001"]},"volume":22,"publication":"New Journal of Physics","department":[{"_id":"MiLe"}],"file":[{"checksum":"c9238fff422e7a957c3a0d559f756b3a","creator":"dernst","content_type":"application/pdf","success":1,"file_size":2725143,"date_created":"2020-10-12T12:18:47Z","file_id":"8650","access_level":"open_access","date_updated":"2020-10-12T12:18:47Z","relation":"main_file","file_name":"2020_NewJournalPhysics_Rzdkowski.pdf"}],"_id":"8644","intvolume":"        22","abstract":[{"lang":"eng","text":"Determining the phase diagram of systems consisting of smaller subsystems 'connected' via a tunable coupling is a challenging task relevant for a variety of physical settings. A general question is whether new phases, not present in the uncoupled limit, may arise. We use machine learning and a suitable quasidistance between different points of the phase diagram to study layered spin models, in which the spin variables constituting each of the uncoupled systems (to which we refer as layers) are coupled to each other via an interlayer coupling. In such systems, in general, composite order parameters involving spins of different layers may emerge as a consequence of the interlayer coupling. We focus on the layered Ising and Ashkin–Teller models as a paradigmatic case study, determining their phase diagram via the application of a machine learning algorithm to the Monte Carlo data. Remarkably our technique is able to correctly characterize all the system phases also in the case of hidden order parameters, i.e. order parameters whose expression in terms of the microscopic configurations would require additional preprocessing of the data fed to the algorithm. We correctly retrieve the three known phases of the Ashkin–Teller model with ferromagnetic couplings, including the phase described by a composite order parameter. For the bilayer and trilayer Ising models the phases we find are only the ferromagnetic and the paramagnetic ones. Within the approach we introduce, owing to the construction of convolutional neural networks, naturally suitable for layered image-like data with arbitrary number of layers, no preprocessing of the Monte Carlo data is needed, also with regard to its spatial structure. The physical meaning of our results is discussed and compared with analytical data, where available. Yet, the method can be used without any a priori knowledge of the phases one seeks to find and can be applied to other models and structures."}],"month":"09","article_type":"original","quality_controlled":"1","article_number":"093026","citation":{"short":"W. Rzadkowski, N. Defenu, S. Chiacchiera, A. Trombettoni, G. Bighin, New Journal of Physics 22 (2020).","ama":"Rzadkowski W, Defenu N, Chiacchiera S, Trombettoni A, Bighin G. Detecting composite orders in layered models via machine learning. <i>New Journal of Physics</i>. 2020;22(9). doi:<a href=\"https://doi.org/10.1088/1367-2630/abae44\">10.1088/1367-2630/abae44</a>","ista":"Rzadkowski W, Defenu N, Chiacchiera S, Trombettoni A, Bighin G. 2020. Detecting composite orders in layered models via machine learning. New Journal of Physics. 22(9), 093026.","apa":"Rzadkowski, W., Defenu, N., Chiacchiera, S., Trombettoni, A., &#38; Bighin, G. (2020). Detecting composite orders in layered models via machine learning. <i>New Journal of Physics</i>. IOP Publishing. <a href=\"https://doi.org/10.1088/1367-2630/abae44\">https://doi.org/10.1088/1367-2630/abae44</a>","mla":"Rzadkowski, Wojciech, et al. “Detecting Composite Orders in Layered Models via Machine Learning.” <i>New Journal of Physics</i>, vol. 22, no. 9, 093026, IOP Publishing, 2020, doi:<a href=\"https://doi.org/10.1088/1367-2630/abae44\">10.1088/1367-2630/abae44</a>.","chicago":"Rzadkowski, Wojciech, N Defenu, S Chiacchiera, A Trombettoni, and Giacomo Bighin. “Detecting Composite Orders in Layered Models via Machine Learning.” <i>New Journal of Physics</i>. IOP Publishing, 2020. <a href=\"https://doi.org/10.1088/1367-2630/abae44\">https://doi.org/10.1088/1367-2630/abae44</a>.","ieee":"W. Rzadkowski, N. Defenu, S. Chiacchiera, A. Trombettoni, and G. Bighin, “Detecting composite orders in layered models via machine learning,” <i>New Journal of Physics</i>, vol. 22, no. 9. IOP Publishing, 2020."},"file_date_updated":"2020-10-12T12:18:47Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_identifier":{"issn":["1367-2630"]},"has_accepted_license":"1","doi":"10.1088/1367-2630/abae44","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"}},{"publication_identifier":{"eissn":["1089-7690"]},"doi":"10.1063/5.0005194","quality_controlled":"1","article_number":"204905","citation":{"ama":"Pȩkalski J, Rzadkowski W, Panagiotopoulos AZ. Shear-induced ordering in systems with competing interactions: A machine learning study. <i>The Journal of chemical physics</i>. 2020;152(20). doi:<a href=\"https://doi.org/10.1063/5.0005194\">10.1063/5.0005194</a>","short":"J. Pȩkalski, W. Rzadkowski, A.Z. Panagiotopoulos, The Journal of Chemical Physics 152 (2020).","ieee":"J. Pȩkalski, W. Rzadkowski, and A. Z. Panagiotopoulos, “Shear-induced ordering in systems with competing interactions: A machine learning study,” <i>The Journal of chemical physics</i>, vol. 152, no. 20. AIP Publishing, 2020.","chicago":"Pȩkalski, J., Wojciech Rzadkowski, and A. Z. Panagiotopoulos. “Shear-Induced Ordering in Systems with Competing Interactions: A Machine Learning Study.” <i>The Journal of Chemical Physics</i>. AIP Publishing, 2020. <a href=\"https://doi.org/10.1063/5.0005194\">https://doi.org/10.1063/5.0005194</a>.","mla":"Pȩkalski, J., et al. “Shear-Induced Ordering in Systems with Competing Interactions: A Machine Learning Study.” <i>The Journal of Chemical Physics</i>, vol. 152, no. 20, 204905, AIP Publishing, 2020, doi:<a href=\"https://doi.org/10.1063/5.0005194\">10.1063/5.0005194</a>.","apa":"Pȩkalski, J., Rzadkowski, W., &#38; Panagiotopoulos, A. Z. (2020). Shear-induced ordering in systems with competing interactions: A machine learning study. <i>The Journal of Chemical Physics</i>. AIP Publishing. <a href=\"https://doi.org/10.1063/5.0005194\">https://doi.org/10.1063/5.0005194</a>","ista":"Pȩkalski J, Rzadkowski W, Panagiotopoulos AZ. 2020. Shear-induced ordering in systems with competing interactions: A machine learning study. The Journal of chemical physics. 152(20), 204905."},"main_file_link":[{"url":"https://doi.org/10.1063/5.0005194","open_access":"1"}],"user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","volume":152,"publication":"The Journal of chemical physics","department":[{"_id":"MiLe"}],"abstract":[{"lang":"eng","text":"When short-range attractions are combined with long-range repulsions in colloidal particle systems, complex microphases can emerge. Here, we study a system of isotropic particles, which can form lamellar structures or a disordered fluid phase when temperature is varied. We show that, at equilibrium, the lamellar structure crystallizes, while out of equilibrium, the system forms a variety of structures at different shear rates and temperatures above melting. The shear-induced ordering is analyzed by means of principal component analysis and artificial neural networks, which are applied to data of reduced dimensionality. Our results reveal the possibility of inducing ordering by shear, potentially providing a feasible route to the fabrication of ordered lamellar structures from isotropic particles."}],"_id":"7956","intvolume":"       152","article_type":"original","month":"05","oa":1,"date_updated":"2026-04-07T14:20:12Z","related_material":{"record":[{"status":"public","id":"10759","relation":"dissertation_contains"}]},"external_id":{"pmid":["32486692"],"isi":["000537900300001"],"arxiv":["2002.07294"]},"date_created":"2020-06-14T22:00:49Z","status":"public","project":[{"grant_number":"665385","name":"International IST Doctoral Program","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"}],"publication_status":"published","publisher":"AIP Publishing","pmid":1,"arxiv":1,"title":"Shear-induced ordering in systems with competing interactions: A machine learning study","article_processing_charge":"No","ec_funded":1,"oa_version":"Published Version","author":[{"full_name":"Pȩkalski, J.","first_name":"J.","last_name":"Pȩkalski"},{"full_name":"Rzadkowski, Wojciech","first_name":"Wojciech","id":"48C55298-F248-11E8-B48F-1D18A9856A87","last_name":"Rzadkowski","orcid":"0000-0002-1106-4419"},{"last_name":"Panagiotopoulos","first_name":"A. Z.","full_name":"Panagiotopoulos, A. Z."}],"year":"2020","isi":1,"language":[{"iso":"eng"}],"scopus_import":"1","day":"29","type":"journal_article","issue":"20","date_published":"2020-05-29T00:00:00Z"},{"quality_controlled":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","main_file_link":[{"url":"https://arxiv.org/abs/1912.02658","open_access":"1"}],"citation":{"short":"X. Li, E. Yakaboylu, G. Bighin, R. Schmidt, M. Lemeshko, A. Deuchert, The Journal of Chemical Physics 152 (2020).","ama":"Li X, Yakaboylu E, Bighin G, Schmidt R, Lemeshko M, Deuchert A. Intermolecular forces and correlations mediated by a phonon bath. <i>The Journal of Chemical Physics</i>. 2020;152(16). doi:<a href=\"https://doi.org/10.1063/1.5144759\">10.1063/1.5144759</a>","chicago":"Li, Xiang, Enderalp Yakaboylu, Giacomo Bighin, Richard Schmidt, Mikhail Lemeshko, and Andreas Deuchert. “Intermolecular Forces and Correlations Mediated by a Phonon Bath.” <i>The Journal of Chemical Physics</i>. AIP Publishing, 2020. <a href=\"https://doi.org/10.1063/1.5144759\">https://doi.org/10.1063/1.5144759</a>.","apa":"Li, X., Yakaboylu, E., Bighin, G., Schmidt, R., Lemeshko, M., &#38; Deuchert, A. (2020). Intermolecular forces and correlations mediated by a phonon bath. <i>The Journal of Chemical Physics</i>. AIP Publishing. <a href=\"https://doi.org/10.1063/1.5144759\">https://doi.org/10.1063/1.5144759</a>","mla":"Li, Xiang, et al. “Intermolecular Forces and Correlations Mediated by a Phonon Bath.” <i>The Journal of Chemical Physics</i>, vol. 152, no. 16, 164302, AIP Publishing, 2020, doi:<a href=\"https://doi.org/10.1063/1.5144759\">10.1063/1.5144759</a>.","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.","ieee":"X. Li, E. Yakaboylu, G. Bighin, R. Schmidt, M. Lemeshko, and A. Deuchert, “Intermolecular forces and correlations mediated by a phonon bath,” <i>The Journal of Chemical Physics</i>, vol. 152, no. 16. AIP Publishing, 2020."},"article_number":"164302","publication_identifier":{"issn":["0021-9606"],"eissn":["1089-7690"]},"doi":"10.1063/1.5144759","oa":1,"corr_author":"1","external_id":{"isi":["000530448300001"],"pmid":["32357791"],"arxiv":["1912.02658"]},"related_material":{"record":[{"relation":"dissertation_contains","id":"8958","status":"public"}]},"date_updated":"2026-04-08T07:26:09Z","department":[{"_id":"MiLe"},{"_id":"RoSe"}],"publication":"The Journal of Chemical Physics","volume":152,"keyword":["Physical and Theoretical Chemistry","General Physics and Astronomy"],"article_type":"original","month":"04","_id":"8587","abstract":[{"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.","lang":"eng"}],"intvolume":"       152","oa_version":"Preprint","ec_funded":1,"title":"Intermolecular forces and correlations mediated by a phonon bath","article_processing_charge":"No","arxiv":1,"pmid":1,"year":"2020","author":[{"id":"4B7E523C-F248-11E8-B48F-1D18A9856A87","last_name":"Li","full_name":"Li, Xiang","first_name":"Xiang"},{"orcid":"0000-0001-5973-0874","id":"38CB71F6-F248-11E8-B48F-1D18A9856A87","last_name":"Yakaboylu","first_name":"Enderalp","full_name":"Yakaboylu, Enderalp"},{"id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","last_name":"Bighin","first_name":"Giacomo","full_name":"Bighin, Giacomo","orcid":"0000-0001-8823-9777"},{"last_name":"Schmidt","first_name":"Richard","full_name":"Schmidt, Richard"},{"orcid":"0000-0002-6990-7802","last_name":"Lemeshko","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","first_name":"Mikhail","full_name":"Lemeshko, Mikhail"},{"id":"4DA65CD0-F248-11E8-B48F-1D18A9856A87","last_name":"Deuchert","full_name":"Deuchert, Andreas","first_name":"Andreas","orcid":"0000-0003-3146-6746"}],"project":[{"call_identifier":"FWF","_id":"26031614-B435-11E9-9278-68D0E5697425","name":"Quantum rotations in the presence of a many-body environment","grant_number":"P29902"},{"_id":"2688CF98-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"Angulon: physics and applications of a new quasiparticle","grant_number":"801770"},{"grant_number":"M02641","name":"A path-integral approach to composite impurities","_id":"26986C82-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"call_identifier":"H2020","_id":"25C6DC12-B435-11E9-9278-68D0E5697425","name":"Analysis of quantum many-body systems","grant_number":"694227"}],"status":"public","date_created":"2020-09-30T10:33:17Z","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.","publisher":"AIP Publishing","publication_status":"published","issue":"16","date_published":"2020-04-27T00:00:00Z","language":[{"iso":"eng"}],"isi":1,"type":"journal_article","day":"27"},{"ec_funded":1,"oa_version":"Published Version","article_processing_charge":"No","title":"Rotation of coupled cold molecules in the presence of a many-body environment","OA_place":"publisher","year":"2020","author":[{"id":"4B7E523C-F248-11E8-B48F-1D18A9856A87","last_name":"Li","first_name":"Xiang","full_name":"Li, Xiang"}],"project":[{"call_identifier":"FWF","_id":"26031614-B435-11E9-9278-68D0E5697425","name":"Quantum rotations in the presence of a many-body environment","grant_number":"P29902"},{"name":"Angulon: physics and applications of a new quasiparticle","grant_number":"801770","_id":"2688CF98-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"}],"status":"public","date_created":"2020-12-21T09:44:30Z","publisher":"Institute of Science and Technology Austria","publication_status":"published","date_published":"2020-12-21T00:00:00Z","language":[{"iso":"eng"}],"type":"dissertation","ddc":["539"],"day":"21","page":"125","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","degree_awarded":"PhD","citation":{"ama":"Li X. Rotation of coupled cold molecules in the presence of a many-body environment. 2020. doi:<a href=\"https://doi.org/10.15479/AT:ISTA:8958\">10.15479/AT:ISTA:8958</a>","short":"X. Li, Rotation of Coupled Cold Molecules in the Presence of a Many-Body Environment, Institute of Science and Technology Austria, 2020.","ieee":"X. Li, “Rotation of coupled cold molecules in the presence of a many-body environment,” Institute of Science and Technology Austria, 2020.","mla":"Li, Xiang. <i>Rotation of Coupled Cold Molecules in the Presence of a Many-Body Environment</i>. Institute of Science and Technology Austria, 2020, doi:<a href=\"https://doi.org/10.15479/AT:ISTA:8958\">10.15479/AT:ISTA:8958</a>.","ista":"Li X. 2020. Rotation of coupled cold molecules in the presence of a many-body environment. Institute of Science and Technology Austria.","apa":"Li, X. (2020). <i>Rotation of coupled cold molecules in the presence of a many-body environment</i>. Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/AT:ISTA:8958\">https://doi.org/10.15479/AT:ISTA:8958</a>","chicago":"Li, Xiang. “Rotation of Coupled Cold Molecules in the Presence of a Many-Body Environment.” Institute of Science and Technology Austria, 2020. <a href=\"https://doi.org/10.15479/AT:ISTA:8958\">https://doi.org/10.15479/AT:ISTA:8958</a>."},"file_date_updated":"2020-12-30T07:18:03Z","publication_identifier":{"issn":["2663-337X"]},"doi":"10.15479/AT:ISTA:8958","has_accepted_license":"1","corr_author":"1","oa":1,"alternative_title":["ISTA Thesis"],"related_material":{"record":[{"id":"1120","relation":"part_of_dissertation","status":"public"},{"id":"8587","relation":"part_of_dissertation","status":"public"},{"id":"5886","relation":"part_of_dissertation","status":"public"}]},"date_updated":"2026-04-08T07:26:10Z","supervisor":[{"full_name":"Lemeshko, Mikhail","first_name":"Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","last_name":"Lemeshko","orcid":"0000-0002-6990-7802"}],"department":[{"_id":"MiLe"}],"month":"12","_id":"8958","abstract":[{"lang":"eng","text":"The oft-quoted dictum by Arthur Schawlow: ``A diatomic molecule has one atom too many'' has been disavowed. Inspired by the possibility to experimentally manipulate and enhance chemical reactivity in helium nanodroplets, we investigate the rotation of coupled cold molecules in the presence of a many-body environment.\r\nIn this thesis, 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.\r\nWith this theoretical toolbox, we reveal the self-localization transition for the angulon quasiparticle. We show that, unlike for 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 symmetry breaking is dictated by the symmetry of the microscopic impurity-bath interaction, which leads to a number of distinct self-localized states. \r\nFor the system containing multiple impurities, 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 from the strong-coupling regime to the weak molecule-bath interaction regime. We show that the molecules tend to have a strong alignment in the ground state, the biangulon shows shifted angulon instabilities and an additional spectral instability, where resonant angular momentum transfer between the molecules and the bath takes place. Finally, 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."}],"file":[{"creator":"xli","checksum":"3994c54a1241451d561db1d4f43bad30","file_id":"8967","content_type":"application/pdf","success":1,"date_created":"2020-12-22T10:55:56Z","file_size":3622305,"relation":"main_file","access_level":"open_access","date_updated":"2020-12-22T10:55:56Z","file_name":"THESIS_Xiang_Li.pdf"},{"file_id":"8968","file_size":4018859,"date_created":"2020-12-22T10:56:03Z","content_type":"application/x-zip-compressed","creator":"xli","checksum":"0954ecfc5554c05615c14de803341f00","file_name":"THESIS_Xiang_Li.zip","relation":"source_file","date_updated":"2020-12-30T07:18:03Z","access_level":"closed"}]},{"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.","status":"public","date_created":"2020-07-26T22:01:02Z","project":[{"grant_number":"P29902","name":"Quantum rotations in the presence of a many-body environment","_id":"26031614-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"_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","name":"A path-integral approach to composite impurities","grant_number":"M02641"},{"grant_number":"665385","name":"International IST Doctoral Program","call_identifier":"H2020","_id":"2564DBCA-B435-11E9-9278-68D0E5697425"}],"publication_status":"published","publisher":"American Physical Society","pmid":1,"arxiv":1,"article_processing_charge":"No","title":"Rotational coherence spectroscopy of molecules in Helium nanodroplets: Reconciling the time and the frequency domains","ec_funded":1,"oa_version":"Preprint","author":[{"first_name":"Adam S.","full_name":"Chatterley, Adam S.","last_name":"Chatterley"},{"full_name":"Christiansen, Lars","first_name":"Lars","last_name":"Christiansen"},{"last_name":"Schouder","full_name":"Schouder, Constant A.","first_name":"Constant A."},{"last_name":"Jørgensen","full_name":"Jørgensen, Anders V.","first_name":"Anders V."},{"first_name":"Benjamin","full_name":"Shepperson, Benjamin","last_name":"Shepperson"},{"full_name":"Cherepanov, Igor","first_name":"Igor","id":"339C7E5A-F248-11E8-B48F-1D18A9856A87","last_name":"Cherepanov"},{"full_name":"Bighin, Giacomo","first_name":"Giacomo","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","last_name":"Bighin","orcid":"0000-0001-8823-9777"},{"last_name":"Zillich","first_name":"Robert E.","full_name":"Zillich, Robert E."},{"full_name":"Lemeshko, Mikhail","first_name":"Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","last_name":"Lemeshko","orcid":"0000-0002-6990-7802"},{"full_name":"Stapelfeldt, Henrik","first_name":"Henrik","last_name":"Stapelfeldt"}],"year":"2020","isi":1,"language":[{"iso":"eng"}],"scopus_import":"1","day":"03","type":"journal_article","issue":"1","date_published":"2020-07-03T00:00:00Z","publication_identifier":{"eissn":["1079-7114"],"issn":["0031-9007"]},"doi":"10.1103/PhysRevLett.125.013001","quality_controlled":"1","article_number":"013001","citation":{"ieee":"A. S. Chatterley <i>et al.</i>, “Rotational coherence spectroscopy of molecules in Helium nanodroplets: Reconciling the time and the frequency domains,” <i>Physical Review Letters</i>, vol. 125, no. 1. American Physical Society, 2020.","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.” <i>Physical Review Letters</i>. American Physical Society, 2020. <a href=\"https://doi.org/10.1103/PhysRevLett.125.013001\">https://doi.org/10.1103/PhysRevLett.125.013001</a>.","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. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.125.013001\">https://doi.org/10.1103/PhysRevLett.125.013001</a>","mla":"Chatterley, Adam S., et al. “Rotational Coherence Spectroscopy of Molecules in Helium Nanodroplets: Reconciling the Time and the Frequency Domains.” <i>Physical Review Letters</i>, vol. 125, no. 1, 013001, American Physical Society, 2020, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.125.013001\">10.1103/PhysRevLett.125.013001</a>.","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.","ama":"Chatterley AS, Christiansen L, Schouder CA, et al. Rotational coherence spectroscopy of molecules in Helium nanodroplets: Reconciling the time and the frequency domains. <i>Physical Review Letters</i>. 2020;125(1). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.125.013001\">10.1103/PhysRevLett.125.013001</a>","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)."},"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2006.02694"}],"user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","volume":125,"publication":"Physical Review Letters","department":[{"_id":"MiLe"}],"intvolume":"       125","_id":"8170","abstract":[{"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.","lang":"eng"}],"article_type":"original","month":"07","oa":1,"date_updated":"2026-04-16T08:21:58Z","external_id":{"arxiv":["2006.02694"],"isi":["000544526900006"],"pmid":["32678640"]}},{"title":"Quantum many-body dynamics of the Einstein-de Haas effect","article_processing_charge":"No","oa_version":"Preprint","arxiv":1,"author":[{"last_name":"Mentink","full_name":"Mentink, Johann H","first_name":"Johann H"},{"first_name":"Mikhail","full_name":"Katsnelson, Mikhail","last_name":"Katsnelson"},{"orcid":"0000-0002-6990-7802","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","last_name":"Lemeshko","full_name":"Lemeshko, Mikhail","first_name":"Mikhail"}],"year":"2019","project":[{"name":"Quantum rotations in the presence of a many-body environment","grant_number":"P29902","call_identifier":"FWF","_id":"26031614-B435-11E9-9278-68D0E5697425"}],"status":"public","date_created":"2019-03-10T22:59:20Z","publisher":"American Physical Society","publication_status":"published","issue":"6","date_published":"2019-02-01T00:00:00Z","scopus_import":"1","isi":1,"language":[{"iso":"eng"}],"day":"01","type":"journal_article","quality_controlled":"1","main_file_link":[{"url":"https://arxiv.org/abs/1802.01638","open_access":"1"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_number":"064428","citation":{"ieee":"J. H. Mentink, M. Katsnelson, and M. Lemeshko, “Quantum many-body dynamics of the Einstein-de Haas effect,” <i>Physical Review B</i>, vol. 99, no. 6. American Physical Society, 2019.","apa":"Mentink, J. H., Katsnelson, M., &#38; Lemeshko, M. (2019). Quantum many-body dynamics of the Einstein-de Haas effect. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevB.99.064428\">https://doi.org/10.1103/PhysRevB.99.064428</a>","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.” <i>Physical Review B</i>, vol. 99, no. 6, 064428, American Physical Society, 2019, doi:<a href=\"https://doi.org/10.1103/PhysRevB.99.064428\">10.1103/PhysRevB.99.064428</a>.","chicago":"Mentink, Johann H, Mikhail Katsnelson, and Mikhail Lemeshko. “Quantum Many-Body Dynamics of the Einstein-de Haas Effect.” <i>Physical Review B</i>. American Physical Society, 2019. <a href=\"https://doi.org/10.1103/PhysRevB.99.064428\">https://doi.org/10.1103/PhysRevB.99.064428</a>.","ama":"Mentink JH, Katsnelson M, Lemeshko M. Quantum many-body dynamics of the Einstein-de Haas effect. <i>Physical Review B</i>. 2019;99(6). doi:<a href=\"https://doi.org/10.1103/PhysRevB.99.064428\">10.1103/PhysRevB.99.064428</a>","short":"J.H. Mentink, M. Katsnelson, M. Lemeshko, Physical Review B 99 (2019)."},"doi":"10.1103/PhysRevB.99.064428","oa":1,"date_updated":"2025-04-15T07:59:29Z","external_id":{"arxiv":["1802.01638"],"isi":["000459223400004"]},"publication":"Physical Review B","department":[{"_id":"MiLe"}],"volume":99,"month":"02","_id":"6092","intvolume":"        99","abstract":[{"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.","lang":"eng"}]},{"doi":"10.1103/PhysRevA.99.063627","publication_identifier":{"eissn":["2469-9934"],"issn":["2469-9926"]},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","main_file_link":[{"url":"https://arxiv.org/abs/1903.06759","open_access":"1"}],"citation":{"chicago":"Karle, Volker, Nicolò Defenu, and Tilman Enss. “Coupled Superfluidity of Binary Bose Mixtures in Two Dimensions.” <i>Physical Review A</i>. American Physical Society, 2019. <a href=\"https://doi.org/10.1103/PhysRevA.99.063627\">https://doi.org/10.1103/PhysRevA.99.063627</a>.","ista":"Karle V, Defenu N, Enss T. 2019. Coupled superfluidity of binary Bose mixtures in two dimensions. Physical Review A. 99(6), 063627.","mla":"Karle, Volker, et al. “Coupled Superfluidity of Binary Bose Mixtures in Two Dimensions.” <i>Physical Review A</i>, vol. 99, no. 6, 063627, American Physical Society, 2019, doi:<a href=\"https://doi.org/10.1103/PhysRevA.99.063627\">10.1103/PhysRevA.99.063627</a>.","apa":"Karle, V., Defenu, N., &#38; Enss, T. (2019). Coupled superfluidity of binary Bose mixtures in two dimensions. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.99.063627\">https://doi.org/10.1103/PhysRevA.99.063627</a>","ieee":"V. Karle, N. Defenu, and T. Enss, “Coupled superfluidity of binary Bose mixtures in two dimensions,” <i>Physical Review A</i>, vol. 99, no. 6. American Physical Society, 2019.","short":"V. Karle, N. Defenu, T. Enss, Physical Review A 99 (2019).","ama":"Karle V, Defenu N, Enss T. Coupled superfluidity of binary Bose mixtures in two dimensions. <i>Physical Review A</i>. 2019;99(6). doi:<a href=\"https://doi.org/10.1103/PhysRevA.99.063627\">10.1103/PhysRevA.99.063627</a>"},"article_number":"063627","quality_controlled":"1","month":"06","_id":"6632","intvolume":"        99","abstract":[{"lang":"eng","text":"We consider a two-component Bose gas in two dimensions at a low temperature with short-range repulsive interaction. In the coexistence phase where both components are superfluid, interspecies interactions induce a nondissipative drag between the two superfluid flows (Andreev-Bashkin effect). We show that this behavior leads to a modification of the usual Berezinskii-Kosterlitz-Thouless (BKT) transition in two dimensions. We extend the renormalization of the superfluid densities at finite temperature using the renormalization-group approach and find that the vortices of one component have a large influence on the superfluid properties of the other, mediated  by  the  nondissipative  drag.  The  extended  BKT  flow  equations  indicate  that  the  occurrence  of  the vortex unbinding transition in one of the components can induce the breakdown of superfluidity also in the other, leading to a locking phenomenon for the critical temperatures of the two gases."}],"department":[{"_id":"MiLe"}],"publication":"Physical Review A","volume":99,"external_id":{"isi":["000473133600007"],"arxiv":["1903.06759"]},"date_updated":"2025-07-10T11:53:40Z","oa":1,"publisher":"American Physical Society","publication_status":"published","status":"public","date_created":"2019-07-14T21:59:17Z","year":"2019","author":[{"id":"D7C012AE-D7ED-11E9-95E8-1EC5E5697425","last_name":"Karle","first_name":"Volker","full_name":"Karle, Volker","orcid":"0000-0002-6963-0129"},{"full_name":"Defenu, Nicolò","first_name":"Nicolò","last_name":"Defenu"},{"first_name":"Tilman","full_name":"Enss, Tilman","last_name":"Enss"}],"oa_version":"Preprint","article_processing_charge":"No","title":"Coupled superfluidity of binary Bose mixtures in two dimensions","arxiv":1,"type":"journal_article","day":"28","scopus_import":"1","language":[{"iso":"eng"}],"isi":1,"date_published":"2019-06-28T00:00:00Z","issue":"6"},{"month":"05","day":"01","type":"conference","_id":"6646","abstract":[{"text":"We demonstrate robust retention of valley coherence and its control via polariton pseudospin precession through the optical TE-TM splitting in bilayer WS2 microcavity exciton polaritons at room temperature.","lang":"eng"}],"publication":"CLEO: Applications and Technology","scopus_import":"1","department":[{"_id":"MiLe"}],"language":[{"iso":"eng"}],"date_published":"2019-05-01T00:00:00Z","date_updated":"2025-05-14T11:09:35Z","publisher":"Optica Publishing Group","doi":"10.1364/cleo_at.2019.jtu2a.52","publication_status":"published","publication_identifier":{"isbn":["9781943580576"]},"date_created":"2019-07-17T09:40:44Z","status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"last_name":"Khatoniar","full_name":"Khatoniar, Mandeep","first_name":"Mandeep"},{"first_name":"Nicholas","full_name":"Yama, Nicholas","last_name":"Yama"},{"full_name":"Ghazaryan, Areg","first_name":"Areg","last_name":"Ghazaryan","id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-9666-3543"},{"last_name":"Guddala","first_name":"Sriram","full_name":"Guddala, Sriram"},{"last_name":"Ghaemi","first_name":"Pouyan","full_name":"Ghaemi, Pouyan"},{"full_name":"Menon, Vinod","first_name":"Vinod","last_name":"Menon"}],"article_number":"paper JTu2A.52","citation":{"short":"M. Khatoniar, N. Yama, A. Ghazaryan, S. Guddala, P. Ghaemi, V. Menon, in:, CLEO: Applications and Technology, Optica Publishing Group, 2019.","ama":"Khatoniar M, Yama N, Ghazaryan A, Guddala S, Ghaemi P, Menon V. Room temperature control of valley coherence in bilayer WS2 exciton polaritons. In: <i>CLEO: Applications and Technology</i>. Optica Publishing Group; 2019. doi:<a href=\"https://doi.org/10.1364/cleo_at.2019.jtu2a.52\">10.1364/cleo_at.2019.jtu2a.52</a>","apa":"Khatoniar, M., Yama, N., Ghazaryan, A., Guddala, S., Ghaemi, P., &#38; Menon, V. (2019). Room temperature control of valley coherence in bilayer WS2 exciton polaritons. In <i>CLEO: Applications and Technology</i>. San Jose, CA, United States: Optica Publishing Group. <a href=\"https://doi.org/10.1364/cleo_at.2019.jtu2a.52\">https://doi.org/10.1364/cleo_at.2019.jtu2a.52</a>","mla":"Khatoniar, Mandeep, et al. “Room Temperature Control of Valley Coherence in Bilayer WS2 Exciton Polaritons.” <i>CLEO: Applications and Technology</i>, paper JTu2A.52, Optica Publishing Group, 2019, doi:<a href=\"https://doi.org/10.1364/cleo_at.2019.jtu2a.52\">10.1364/cleo_at.2019.jtu2a.52</a>.","ista":"Khatoniar M, Yama N, Ghazaryan A, Guddala S, Ghaemi P, Menon V. 2019. Room temperature control of valley coherence in bilayer WS2 exciton polaritons. CLEO: Applications and Technology. CLEO: Conference on Lasers and Electro-Optics, paper JTu2A.52.","chicago":"Khatoniar, Mandeep, Nicholas Yama, Areg Ghazaryan, Sriram Guddala, Pouyan Ghaemi, and Vinod Menon. “Room Temperature Control of Valley Coherence in Bilayer WS2 Exciton Polaritons.” In <i>CLEO: Applications and Technology</i>. Optica Publishing Group, 2019. <a href=\"https://doi.org/10.1364/cleo_at.2019.jtu2a.52\">https://doi.org/10.1364/cleo_at.2019.jtu2a.52</a>.","ieee":"M. Khatoniar, N. Yama, A. Ghazaryan, S. Guddala, P. Ghaemi, and V. Menon, “Room temperature control of valley coherence in bilayer WS2 exciton polaritons,” in <i>CLEO: Applications and Technology</i>, San Jose, CA, United States, 2019."},"year":"2019","title":"Room temperature control of valley coherence in bilayer WS2 exciton polaritons","quality_controlled":"1","article_processing_charge":"No","oa_version":"None","conference":{"start_date":"2019-05-05","end_date":"2019-05-10","name":"CLEO: Conference on Lasers and Electro-Optics","location":"San Jose, CA, United States"}},{"publication_identifier":{"eissn":["2160-3308"]},"doi":"10.1103/PhysRevX.9.021026","has_accepted_license":"1","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"quality_controlled":"1","citation":{"ama":"Hubert C, Baruchi Y, Mazuz-Harpaz Y, et al. Attractive dipolar coupling between stacked exciton fluids. <i>Physical Review X</i>. 2019;9(2). doi:<a href=\"https://doi.org/10.1103/PhysRevX.9.021026\">10.1103/PhysRevX.9.021026</a>","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).","ieee":"C. Hubert <i>et al.</i>, “Attractive dipolar coupling between stacked exciton fluids,” <i>Physical Review X</i>, vol. 9, no. 2. American Physical Society, 2019.","apa":"Hubert, C., Baruchi, Y., Mazuz-Harpaz, Y., Cohen, K., Biermann, K., Lemeshko, M., … Santos, P. (2019). Attractive dipolar coupling between stacked exciton fluids. <i>Physical Review X</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevX.9.021026\">https://doi.org/10.1103/PhysRevX.9.021026</a>","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.” <i>Physical Review X</i>, vol. 9, no. 2, 021026, American Physical Society, 2019, doi:<a href=\"https://doi.org/10.1103/PhysRevX.9.021026\">10.1103/PhysRevX.9.021026</a>.","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.” <i>Physical Review X</i>. American Physical Society, 2019. <a href=\"https://doi.org/10.1103/PhysRevX.9.021026\">https://doi.org/10.1103/PhysRevX.9.021026</a>."},"file_date_updated":"2020-07-14T12:47:40Z","article_number":"021026","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","volume":9,"department":[{"_id":"MiLe"}],"publication":"Physical Review X","_id":"6786","intvolume":"         9","abstract":[{"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.","lang":"eng"}],"file":[{"file_name":"2019_PhysReviewX_Hubert.pdf","date_updated":"2020-07-14T12:47:40Z","access_level":"open_access","relation":"main_file","date_created":"2019-08-12T12:14:18Z","file_size":1193550,"content_type":"application/pdf","file_id":"6802","checksum":"065ff82ee4a1d2c3773ce4b76ff4213c","creator":"dernst"}],"article_type":"original","month":"05","oa":1,"external_id":{"isi":["000467402900001"],"arxiv":["1807.11238"]},"date_updated":"2025-04-15T07:59:29Z","date_created":"2019-08-11T21:59:20Z","status":"public","project":[{"call_identifier":"FWF","_id":"26031614-B435-11E9-9278-68D0E5697425","grant_number":"P29902","name":"Quantum rotations in the presence of a many-body environment"}],"publication_status":"published","publisher":"American Physical Society","arxiv":1,"oa_version":"Published Version","article_processing_charge":"No","title":"Attractive dipolar coupling between stacked exciton fluids","year":"2019","author":[{"last_name":"Hubert","first_name":"Colin","full_name":"Hubert, Colin"},{"last_name":"Baruchi","first_name":"Yifat","full_name":"Baruchi, Yifat"},{"last_name":"Mazuz-Harpaz","first_name":"Yotam","full_name":"Mazuz-Harpaz, Yotam"},{"last_name":"Cohen","first_name":"Kobi","full_name":"Cohen, Kobi"},{"last_name":"Biermann","first_name":"Klaus","full_name":"Biermann, Klaus"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","last_name":"Lemeshko","full_name":"Lemeshko, Mikhail","first_name":"Mikhail","orcid":"0000-0002-6990-7802"},{"full_name":"West, Ken","first_name":"Ken","last_name":"West"},{"full_name":"Pfeiffer, Loren","first_name":"Loren","last_name":"Pfeiffer"},{"first_name":"Ronen","full_name":"Rapaport, Ronen","last_name":"Rapaport"},{"last_name":"Santos","first_name":"Paulo","full_name":"Santos, Paulo"}],"language":[{"iso":"eng"}],"isi":1,"scopus_import":"1","type":"journal_article","ddc":["530"],"day":"08","issue":"2","date_published":"2019-05-08T00:00:00Z"},{"publication_identifier":{"eissn":["1079-7114"],"issn":["0031-9007"]},"doi":"10.1103/physrevlett.123.100601","quality_controlled":"1","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1907.06253"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","article_number":"100601","citation":{"mla":"Bighin, Giacomo, et al. “Berezinskii-Kosterlitz-Thouless Paired Phase in Coupled XY Models.” <i>Physical Review Letters</i>, vol. 123, no. 10, 100601, American Physical Society, 2019, doi:<a href=\"https://doi.org/10.1103/physrevlett.123.100601\">10.1103/physrevlett.123.100601</a>.","apa":"Bighin, G., Defenu, N., Nándori, I., Salasnich, L., &#38; Trombettoni, A. (2019). Berezinskii-Kosterlitz-Thouless paired phase in coupled XY models. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevlett.123.100601\">https://doi.org/10.1103/physrevlett.123.100601</a>","ista":"Bighin G, Defenu N, Nándori I, Salasnich L, Trombettoni A. 2019. Berezinskii-Kosterlitz-Thouless paired phase in coupled XY models. Physical Review Letters. 123(10), 100601.","chicago":"Bighin, Giacomo, Nicolò Defenu, István Nándori, Luca Salasnich, and Andrea Trombettoni. “Berezinskii-Kosterlitz-Thouless Paired Phase in Coupled XY Models.” <i>Physical Review Letters</i>. American Physical Society, 2019. <a href=\"https://doi.org/10.1103/physrevlett.123.100601\">https://doi.org/10.1103/physrevlett.123.100601</a>.","ieee":"G. Bighin, N. Defenu, I. Nándori, L. Salasnich, and A. Trombettoni, “Berezinskii-Kosterlitz-Thouless paired phase in coupled XY models,” <i>Physical Review Letters</i>, vol. 123, no. 10. American Physical Society, 2019.","short":"G. Bighin, N. Defenu, I. Nándori, L. Salasnich, A. Trombettoni, Physical Review Letters 123 (2019).","ama":"Bighin G, Defenu N, Nándori I, Salasnich L, Trombettoni A. Berezinskii-Kosterlitz-Thouless paired phase in coupled XY models. <i>Physical Review Letters</i>. 2019;123(10). doi:<a href=\"https://doi.org/10.1103/physrevlett.123.100601\">10.1103/physrevlett.123.100601</a>"},"publication":"Physical Review Letters","department":[{"_id":"MiLe"}],"volume":123,"month":"09","article_type":"original","_id":"6940","abstract":[{"lang":"eng","text":"We study the effect of a linear tunneling coupling between two-dimensional systems, each separately\r\nexhibiting the topological Berezinskii-Kosterlitz-Thouless (BKT) transition. In the uncoupled limit, there\r\nare two phases: one where the one-body correlation functions are algebraically decaying and the other with\r\nexponential decay. When the linear coupling is turned on, a third BKT-paired phase emerges, in which one-body correlations are exponentially decaying, while two-body correlation functions exhibit power-law\r\ndecay. We perform numerical simulations in the paradigmatic case of two coupled XY models at finite\r\ntemperature, finding evidences that for any finite value of the interlayer coupling, the BKT-paired phase is\r\npresent. We provide a picture of the phase diagram using a renormalization group approach."}],"intvolume":"       123","oa":1,"related_material":{"link":[{"description":"News auf IST Website","url":"https://ist.ac.at/en/news/new-form-of-magnetism-found/","relation":"press_release"}]},"date_updated":"2025-04-14T08:57:11Z","external_id":{"isi":["000483587200004"],"arxiv":["1907.06253"]},"project":[{"call_identifier":"FWF","_id":"26986C82-B435-11E9-9278-68D0E5697425","grant_number":"M02641","name":"A path-integral approach to composite impurities"}],"acknowledgement":"We thank S. Chiacchiera, G. Delfino, N. Dupuis, T. Enss, M. Fabrizio and G. Gori for many stimulating discussions.\r\nG.B. acknowledges support from the Austrian Science Fund (FWF), under project No. M2461-N27. N.D. acknowledges\r\nsupport from Deutsche Forschungsgemeinschaft (DFG) under Germany’s Excellence Strategy EXC-2181/1 - 390900948 (the Heidelberg STRUCTURES Excellence Cluster) and from the DFG Collaborative Research Centre “SFB 1225 ISOQUANT”. Support from the CNR/MTA Italy-Hungary 2019-2021 Joint Project “Strongly interacting systems in confined geometries” is gratefully acknowledged.","date_created":"2019-10-14T06:31:13Z","status":"public","publisher":"American Physical Society","publication_status":"published","title":"Berezinskii-Kosterlitz-Thouless paired phase in coupled XY models","article_processing_charge":"No","oa_version":"Preprint","arxiv":1,"author":[{"id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","last_name":"Bighin","first_name":"Giacomo","full_name":"Bighin, Giacomo","orcid":"0000-0001-8823-9777"},{"first_name":"Nicolò","full_name":"Defenu, Nicolò","last_name":"Defenu"},{"last_name":"Nándori","full_name":"Nándori, István","first_name":"István"},{"last_name":"Salasnich","full_name":"Salasnich, Luca","first_name":"Luca"},{"last_name":"Trombettoni","first_name":"Andrea","full_name":"Trombettoni, Andrea"}],"year":"2019","scopus_import":"1","isi":1,"language":[{"iso":"eng"}],"day":"06","type":"journal_article","issue":"10","date_published":"2019-09-06T00:00:00Z"},{"author":[{"last_name":"Schmickler","full_name":"Schmickler, C.H.","first_name":"C.H."},{"first_name":"H.-W.","full_name":"Hammer, H.-W.","last_name":"Hammer"},{"orcid":"0000-0003-0393-5525","id":"37D278BC-F248-11E8-B48F-1D18A9856A87","last_name":"Volosniev","first_name":"Artem","full_name":"Volosniev, Artem"}],"year":"2019","title":"Universal physics of bound states of a few charged particles","article_processing_charge":"No","oa_version":"Published Version","arxiv":1,"publisher":"Elsevier","publication_status":"published","date_created":"2019-10-18T18:33:32Z","status":"public","date_published":"2019-11-10T00:00:00Z","day":"10","ddc":["530"],"type":"journal_article","scopus_import":"1","isi":1,"language":[{"iso":"eng"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","article_number":"135016","file_date_updated":"2020-07-14T12:47:46Z","citation":{"short":"C.H. Schmickler, H.-W. Hammer, A. Volosniev, Physics Letters B 798 (2019).","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>","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>.","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>","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>.","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."},"quality_controlled":"1","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"has_accepted_license":"1","doi":"10.1016/j.physletb.2019.135016","publication_identifier":{"issn":["0370-2693"]},"date_updated":"2024-10-09T20:59:03Z","external_id":{"arxiv":["1904.00913"],"isi":["000494939000086"]},"corr_author":"1","oa":1,"month":"11","article_type":"original","file":[{"content_type":"application/pdf","file_size":528362,"date_created":"2019-10-25T12:47:04Z","file_id":"6974","checksum":"d27f983b34ea7dafdf356afbf9472fbf","creator":"dernst","file_name":"2019_PhysicsLettersB_Schmickler.pdf","access_level":"open_access","date_updated":"2020-07-14T12:47:46Z","relation":"main_file"}],"abstract":[{"lang":"eng","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."}],"_id":"6955","intvolume":"       798","publication":"Physics Letters B","department":[{"_id":"MiLe"}],"volume":798}]