[{"department":[{"_id":"MiLe"}],"acknowledgement":"We thank Georgios Koutentakis, Frédéric Chevy, Hussam Al Daas, and Richard Schmidt for fruitful discussions; Jan Arlt for sharing their experimental data and many fruitful discussions; and Christoph Eigen for sharing their experimental data and inspiring discussions. R.A., T.P., and G.M.B. have been supported in part by the Danish National Research Foundation through the Center of Excellence “CCQ” (Grant Agreement No. DNRF156) and the Independent Research Fund Denmark–Natural Sciences via Grant No. DFF-8021-00233B. R.A., A.G.V., and M.L. acknowledge support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). R.A. received funding from the Austrian Academy of Science ÖAW Grant No. PR1029OEAW03.","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)"},"abstract":[{"text":"Cold atom experiments show that a mobile impurity particle immersed in a weakly interacting Bose-Einstein condensate forms a well-defined quasiparticle (Bose polaron) for weak to moderate impurity-boson interaction strengths, whereas a significant line broadening is consistently observed for strong interactions. Motivated by this, we introduce a phenomenological theory based on the assumption that the most relevant states are characterized by the impurity correlated with at most one boson, since they have the largest overlap with the uncorrelated states to which the most common experimental probes couple. These experimentally relevant states can, however, decay to lower energy states characterized by correlations involving multiple bosons, and we model this using a minimal variational wave function combined with a complex impurity-boson interaction strength. We first motivate this approach by comparing to a more elaborate theory that includes correlations with up to two bosons. Our phenomenological model is shown to recover the main results of two recent experiments probing both the spectral and the nonequilibrium properties of the Bose polaron. Our work offers an intuitive framework for analyzing experimental data and highlights the importance of understanding the complicated problem of the Bose polaron decay in a many-body setting.","lang":"eng"}],"file_date_updated":"2026-03-02T09:24:44Z","date_created":"2026-03-01T23:01:39Z","PlanS_conform":"1","article_type":"letter_note","file":[{"file_id":"21376","creator":"dernst","success":1,"content_type":"application/pdf","file_name":"2026_JPhysPhotonics_Volpe.pdf","access_level":"open_access","checksum":"172720f1f0c5c9d06a282e52023a0030","date_created":"2026-03-02T09:24:44Z","file_size":16789781,"date_updated":"2026-03-02T09:24:44Z","relation":"main_file"}],"DOAJ_listed":"1","title":"Phenomenological model of decaying Bose polarons","citation":{"mla":"Al Hyder, Ragheed, et al. “Phenomenological Model of Decaying Bose Polarons.” <i>Physical Review Research</i>, vol. 8, L012034, American Physical Society, 2026, doi:<a href=\"https://doi.org/10.1103/16dk-5dgx\">10.1103/16dk-5dgx</a>.","ama":"Al Hyder R, Bruun GM, Pohl T, Lemeshko M, Volosniev A. Phenomenological model of decaying Bose polarons. <i>Physical Review Research</i>. 2026;8. doi:<a href=\"https://doi.org/10.1103/16dk-5dgx\">10.1103/16dk-5dgx</a>","chicago":"Al Hyder, Ragheed, G. M. Bruun, T. Pohl, Mikhail Lemeshko, and Artem Volosniev. “Phenomenological Model of Decaying Bose Polarons.” <i>Physical Review Research</i>. American Physical Society, 2026. <a href=\"https://doi.org/10.1103/16dk-5dgx\">https://doi.org/10.1103/16dk-5dgx</a>.","ista":"Al Hyder R, Bruun GM, Pohl T, Lemeshko M, Volosniev A. 2026. Phenomenological model of decaying Bose polarons. Physical Review Research. 8, L012034.","short":"R. Al Hyder, G.M. Bruun, T. Pohl, M. Lemeshko, A. Volosniev, Physical Review Research 8 (2026).","ieee":"R. Al Hyder, G. M. Bruun, T. Pohl, M. Lemeshko, and A. Volosniev, “Phenomenological model of decaying Bose polarons,” <i>Physical Review Research</i>, vol. 8. American Physical Society, 2026.","apa":"Al Hyder, R., Bruun, G. M., Pohl, T., Lemeshko, M., &#38; Volosniev, A. (2026). Phenomenological model of decaying Bose polarons. <i>Physical Review Research</i>. American Physical Society. <a href=\"https://doi.org/10.1103/16dk-5dgx\">https://doi.org/10.1103/16dk-5dgx</a>"},"author":[{"id":"d1c405be-ae15-11ed-8510-ccf53278162e","first_name":"Ragheed","last_name":"Al Hyder","full_name":"Al Hyder, Ragheed"},{"first_name":"G. M.","full_name":"Bruun, G. M.","last_name":"Bruun"},{"full_name":"Pohl, T.","last_name":"Pohl","first_name":"T."},{"last_name":"Lemeshko","full_name":"Lemeshko, Mikhail","first_name":"Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802"},{"full_name":"Volosniev, Artem","last_name":"Volosniev","orcid":"0000-0003-0393-5525","id":"37D278BC-F248-11E8-B48F-1D18A9856A87","first_name":"Artem"}],"oa":1,"scopus_import":"1","oa_version":"Published Version","article_number":"L012034","OA_place":"publisher","year":"2026","has_accepted_license":"1","publisher":"American Physical Society","intvolume":"         8","ec_funded":1,"publication_identifier":{"issn":["2643-1564"]},"volume":8,"project":[{"_id":"2688CF98-B435-11E9-9278-68D0E5697425","name":"Angulon: physics and applications of a new quasiparticle","grant_number":"801770","call_identifier":"H2020"},{"grant_number":"12078","name":"Polarons in Lead Halide Perovskites","_id":"8fa7db46-16d5-11f0-9cad-917600954daf"}],"day":"06","language":[{"iso":"eng"}],"publication_status":"published","external_id":{"arxiv":["2507.04143"]},"publication":"Physical Review Research","corr_author":"1","month":"02","doi":"10.1103/16dk-5dgx","ddc":["530"],"arxiv":1,"_id":"21373","quality_controlled":"1","date_updated":"2026-03-02T09:27:26Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","type":"journal_article","date_published":"2026-02-06T00:00:00Z","OA_type":"gold","article_processing_charge":"No"},{"acknowledgement":"We thank Artem Volosniev, Narcis Avarvari, Georgios Koutentakis, Sandro Wimberger, and Binghai Yan for useful discussions. R.A. received funding from the Austrian Academy of Science ÖWA, Grant No. PR1029OEAW03. M.L. acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). A.C. received funding from the European Union’s Horizon Europe research and innovation program under the Marie Skłodowska-Curie Grant Agreement No. 101062862-NeqMolRot.","department":[{"_id":"MiLe"}],"date_created":"2025-06-23T13:55:28Z","abstract":[{"lang":"eng","text":"We investigate quantum transport in a two-dimensional electron system coupled to a chiral molecular potential, demonstrating how molecular chirality and orientation affect charge and spin transport properties. We propose a minimal model for realizing true chiral symmetry breaking on a magnetized surface, with a crucial role played by the tilt angle of the molecular dipole with respect to the surface. For non-zero tilting, we show that the Hall response exhibits clear signatures of chirality-induced effects, in both charge- and spin-resolved observables. Concerning the former, tilted enantiomers produce asymmetric Hall conductances and, even more remarkably, the persistence of this feature in the absence of spin–orbit coupling (SOC) signals how the enantiospecific charge response results from electron scattering off the molecular potential. Concerning spin-resolved observables where SOC plays a relevant role, we reveal that chiral symmetry breaking is crucial in enabling spin-flipping processes."}],"file_date_updated":"2025-06-23T14:03:30Z","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)"},"file":[{"content_type":"application/pdf","creator":"dernst","file_id":"19881","success":1,"date_created":"2025-06-23T14:03:30Z","checksum":"e278631d949657baa9d5309dad5f4b77","access_level":"open_access","file_size":7202681,"relation":"main_file","date_updated":"2025-06-23T14:03:30Z","file_name":"2025_JourChemicalPhysics_AlHyder.pdf"}],"pmid":1,"article_type":"original","author":[{"full_name":"Al Hyder, Ragheed","last_name":"Al Hyder","first_name":"Ragheed","id":"d1c405be-ae15-11ed-8510-ccf53278162e"},{"first_name":"Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","last_name":"Lemeshko","full_name":"Lemeshko, Mikhail"},{"full_name":"Cappellaro, Alberto","last_name":"Cappellaro","orcid":"0000-0001-6110-2359","id":"9d13b3cb-30a2-11eb-80dc-f772505e8660","first_name":"Alberto"}],"citation":{"apa":"Al Hyder, R., Lemeshko, M., &#38; Cappellaro, A. (2025). Quantum transport in the presence of a chiral molecular potential. <i>The Journal of Chemical Physics</i>. AIP Publishing. <a href=\"https://doi.org/10.1063/5.0271155\">https://doi.org/10.1063/5.0271155</a>","ieee":"R. Al Hyder, M. Lemeshko, and A. Cappellaro, “Quantum transport in the presence of a chiral molecular potential,” <i>The Journal of Chemical Physics</i>, vol. 162, no. 23. AIP Publishing, 2025.","ista":"Al Hyder R, Lemeshko M, Cappellaro A. 2025. Quantum transport in the presence of a chiral molecular potential. The Journal of Chemical Physics. 162(23), 234106.","short":"R. Al Hyder, M. Lemeshko, A. Cappellaro, The Journal of Chemical Physics 162 (2025).","chicago":"Al Hyder, Ragheed, Mikhail Lemeshko, and Alberto Cappellaro. “Quantum Transport in the Presence of a Chiral Molecular Potential.” <i>The Journal of Chemical Physics</i>. AIP Publishing, 2025. <a href=\"https://doi.org/10.1063/5.0271155\">https://doi.org/10.1063/5.0271155</a>.","ama":"Al Hyder R, Lemeshko M, Cappellaro A. Quantum transport in the presence of a chiral molecular potential. <i>The Journal of Chemical Physics</i>. 2025;162(23). doi:<a href=\"https://doi.org/10.1063/5.0271155\">10.1063/5.0271155</a>","mla":"Al Hyder, Ragheed, et al. “Quantum Transport in the Presence of a Chiral Molecular Potential.” <i>The Journal of Chemical Physics</i>, vol. 162, no. 23, 234106, AIP Publishing, 2025, doi:<a href=\"https://doi.org/10.1063/5.0271155\">10.1063/5.0271155</a>."},"title":"Quantum transport in the presence of a chiral molecular potential","oa":1,"oa_version":"Published Version","scopus_import":"1","year":"2025","OA_place":"publisher","article_number":"234106","has_accepted_license":"1","isi":1,"intvolume":"       162","ec_funded":1,"publisher":"AIP Publishing","project":[{"_id":"2688CF98-B435-11E9-9278-68D0E5697425","name":"Angulon: physics and applications of a new quasiparticle","grant_number":"801770","call_identifier":"H2020"},{"grant_number":"101062862","name":"Non-Equilibrium Field Theory of Molecular Rotations","_id":"bd7b5202-d553-11ed-ba76-9b1c1b258338"},{"grant_number":"12078","name":"Polarons in Lead Halide Perovskites","_id":"8fa7db46-16d5-11f0-9cad-917600954daf"}],"volume":162,"publication_identifier":{"issn":["0021-9606"],"eissn":["1089-7690"]},"language":[{"iso":"eng"}],"day":"21","corr_author":"1","external_id":{"arxiv":["2503.14124"],"isi":["001512872900010"],"pmid":["40526561"]},"publication":"The Journal of Chemical Physics","publication_status":"published","arxiv":1,"issue":"23","ddc":["530"],"month":"06","doi":"10.1063/5.0271155","date_updated":"2025-09-30T13:40:55Z","quality_controlled":"1","_id":"19880","OA_type":"hybrid","date_published":"2025-06-21T00:00:00Z","type":"journal_article","status":"public","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","article_processing_charge":"Yes (via OA deal)"},{"department":[{"_id":"MiLe"}],"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)"},"date_created":"2025-07-13T22:01:22Z","abstract":[{"lang":"eng","text":"The problem of mobile impurities in quantum baths is of fundamental importance in many-body physics. There has recently been significant progress regarding our understanding of this due to cold atom experiments, but so far it has mainly been concerned with cases where the bath has no or only weak interactions, or the impurity interacts weakly with the bath. Here, we address this gap by developing a new theoretical framework for exploring a mobile impurity interacting strongly with a highly correlated bath of bosons in the quantum critical regime of a Mott insulator (MI) to superfluid (SF) quantum phase transition. Our framework is based on a powerful quantum Gutzwiller (QGW) description of the bosonic bath combined with diagrammatic field theory for the impurity-bath interactions. By resumming a selected class of diagrams to infinite order, a rich picture emerges where the impurity is dressed by the fundamental modes of the bath, which change character from gapped particle-hole excitations in the MI to Higgs and gapless Goldstone modes in the SF. This gives rise to the existence of several quasiparticle (polaron) branches with properties reflecting the strongly correlated environment. In particular, one polaron branch exhibits a sharp cusp in its energy, while a new ground-state polaron emerges at the O(2) quantum phase transition point for integer filling, which reflects the nonanalytic behavior at the transition and the appearance of the Goldstone mode in the SF phase. Smooth versions of these features are inherited in the polaron spectrum away from integer filling due to the influence of Mott physics on the bosonic bath. We furthermore compare our diagrammatic results with quantum Monte Carlo calculations, obtaining excellent agreement. This accuracy is quite remarkable for such a highly non-trivial case of strong interactions between the impurity and bosons in a maximally correlated quantum critical regime, and it establishes the utility of our framework. Finally, our results show how impurities can be used as quantum sensors and highlight fundamental differences between experiments performed at a fixed particle number or a fixed chemical potential."}],"file_date_updated":"2025-07-14T07:02:38Z","PlanS_conform":"1","file":[{"file_name":"2025_SciPostPhys_AlHyder.pdf","date_updated":"2025-07-14T07:02:38Z","relation":"main_file","file_size":9769204,"checksum":"a2ce71aab685b7ea29e7abcf81e2fcc1","date_created":"2025-07-14T07:02:38Z","access_level":"open_access","success":1,"file_id":"20014","creator":"dernst","content_type":"application/pdf"}],"article_type":"original","DOAJ_listed":"1","title":"Lattice Bose polarons at strong coupling and quantum criticality","author":[{"id":"d1c405be-ae15-11ed-8510-ccf53278162e","first_name":"Ragheed","full_name":"Al Hyder, Ragheed","last_name":"Al Hyder"},{"first_name":"Victor E.","last_name":"Colussi","full_name":"Colussi, Victor E."},{"full_name":"Čufar, Matija","last_name":"Čufar","first_name":"Matija"},{"full_name":"Brand, Joachim","last_name":"Brand","first_name":"Joachim"},{"first_name":"Alessio","last_name":"Recati","full_name":"Recati, Alessio"},{"first_name":"Georg M.","last_name":"Bruun","full_name":"Bruun, Georg M."}],"citation":{"apa":"Al Hyder, R., Colussi, V. E., Čufar, M., Brand, J., Recati, A., &#38; Bruun, G. M. (2025). Lattice Bose polarons at strong coupling and quantum criticality. <i>Scipost Physics</i>. SciPost Foundation. <a href=\"https://doi.org/10.21468/SciPostPhys.19.1.002\">https://doi.org/10.21468/SciPostPhys.19.1.002</a>","ieee":"R. Al Hyder, V. E. Colussi, M. Čufar, J. Brand, A. Recati, and G. M. Bruun, “Lattice Bose polarons at strong coupling and quantum criticality,” <i>Scipost Physics</i>, vol. 19, no. 1. SciPost Foundation, 2025.","ista":"Al Hyder R, Colussi VE, Čufar M, Brand J, Recati A, Bruun GM. 2025. Lattice Bose polarons at strong coupling and quantum criticality. Scipost Physics. 19(1), 002.","short":"R. Al Hyder, V.E. Colussi, M. Čufar, J. Brand, A. Recati, G.M. Bruun, Scipost Physics 19 (2025).","ama":"Al Hyder R, Colussi VE, Čufar M, Brand J, Recati A, Bruun GM. Lattice Bose polarons at strong coupling and quantum criticality. <i>Scipost Physics</i>. 2025;19(1). doi:<a href=\"https://doi.org/10.21468/SciPostPhys.19.1.002\">10.21468/SciPostPhys.19.1.002</a>","chicago":"Al Hyder, Ragheed, Victor E. Colussi, Matija Čufar, Joachim Brand, Alessio Recati, and Georg M. Bruun. “Lattice Bose Polarons at Strong Coupling and Quantum Criticality.” <i>Scipost Physics</i>. SciPost Foundation, 2025. <a href=\"https://doi.org/10.21468/SciPostPhys.19.1.002\">https://doi.org/10.21468/SciPostPhys.19.1.002</a>.","mla":"Al Hyder, Ragheed, et al. “Lattice Bose Polarons at Strong Coupling and Quantum Criticality.” <i>Scipost Physics</i>, vol. 19, no. 1, 002, SciPost Foundation, 2025, doi:<a href=\"https://doi.org/10.21468/SciPostPhys.19.1.002\">10.21468/SciPostPhys.19.1.002</a>."},"oa":1,"scopus_import":"1","oa_version":"Published Version","OA_place":"publisher","article_number":"002","year":"2025","has_accepted_license":"1","intvolume":"        19","publisher":"SciPost Foundation","isi":1,"publication_identifier":{"eissn":["2542-4653"]},"volume":19,"day":"01","language":[{"iso":"eng"}],"publication_status":"published","corr_author":"1","external_id":{"arxiv":["2412.07597"],"isi":["001523515000002"]},"publication":"Scipost Physics","doi":"10.21468/SciPostPhys.19.1.002","month":"07","arxiv":1,"issue":"1","ddc":["530"],"quality_controlled":"1","date_updated":"2025-09-30T14:00:26Z","_id":"20003","type":"journal_article","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","status":"public","OA_type":"diamond","date_published":"2025-07-01T00:00:00Z","article_processing_charge":"No"},{"day":"07","language":[{"iso":"eng"}],"publication_status":"published","publication":"Physical Review Letters","external_id":{"pmid":["40131090"],"arxiv":["2407.19993"],"isi":["001492808800010"]},"corr_author":"1","intvolume":"       134","publisher":"American Physical Society","ec_funded":1,"isi":1,"publication_identifier":{"eissn":["1079-7114"],"issn":["0031-9007"]},"volume":134,"project":[{"name":"IST-BRIDGE: International postdoctoral program","call_identifier":"H2020","grant_number":"101034413","_id":"fc2ed2f7-9c52-11eb-aca3-c01059dda49c"},{"_id":"2688CF98-B435-11E9-9278-68D0E5697425","name":"Angulon: physics and applications of a new quasiparticle","call_identifier":"H2020","grant_number":"801770"},{"_id":"8fa7db46-16d5-11f0-9cad-917600954daf","name":"Polarons in Lead Halide Perovskites","grant_number":"12078"}],"user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","status":"public","type":"journal_article","date_published":"2025-03-07T00:00:00Z","OA_type":"hybrid","article_processing_charge":"Yes (via OA deal)","month":"03","doi":"10.1103/PhysRevLett.134.096302","ddc":["530"],"issue":"9","arxiv":1,"_id":"19437","date_updated":"2025-09-30T11:17:58Z","quality_controlled":"1","article_type":"original","pmid":1,"file":[{"file_id":"19461","creator":"dernst","success":1,"content_type":"application/pdf","file_name":"2025_PhysReviewLetters_Kluibenschedl.pdf","date_created":"2025-03-25T12:37:07Z","access_level":"open_access","checksum":"1901efd7f95e8fe70cac412f91ea4da3","file_size":708750,"relation":"main_file","date_updated":"2025-03-25T12:37:07Z"}],"title":"Domain-wall ferroelectric polarons in a two-dimensional rotor lattice model","citation":{"apa":"Kluibenschedl, F., Koutentakis, G., Al Hyder, R., &#38; Lemeshko, M. (2025). Domain-wall ferroelectric polarons in a two-dimensional rotor lattice model. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.134.096302\">https://doi.org/10.1103/PhysRevLett.134.096302</a>","ieee":"F. Kluibenschedl, G. Koutentakis, R. Al Hyder, and M. Lemeshko, “Domain-wall ferroelectric polarons in a two-dimensional rotor lattice model,” <i>Physical Review Letters</i>, vol. 134, no. 9. American Physical Society, 2025.","chicago":"Kluibenschedl, Florian, Georgios Koutentakis, Ragheed Al Hyder, and Mikhail Lemeshko. “Domain-Wall Ferroelectric Polarons in a Two-Dimensional Rotor Lattice Model.” <i>Physical Review Letters</i>. American Physical Society, 2025. <a href=\"https://doi.org/10.1103/PhysRevLett.134.096302\">https://doi.org/10.1103/PhysRevLett.134.096302</a>.","ama":"Kluibenschedl F, Koutentakis G, Al Hyder R, Lemeshko M. Domain-wall ferroelectric polarons in a two-dimensional rotor lattice model. <i>Physical Review Letters</i>. 2025;134(9). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.134.096302\">10.1103/PhysRevLett.134.096302</a>","ista":"Kluibenschedl F, Koutentakis G, Al Hyder R, Lemeshko M. 2025. Domain-wall ferroelectric polarons in a two-dimensional rotor lattice model. Physical Review Letters. 134(9), 096302.","short":"F. Kluibenschedl, G. Koutentakis, R. Al Hyder, M. Lemeshko, Physical Review Letters 134 (2025).","mla":"Kluibenschedl, Florian, et al. “Domain-Wall Ferroelectric Polarons in a Two-Dimensional Rotor Lattice Model.” <i>Physical Review Letters</i>, vol. 134, no. 9, 096302, American Physical Society, 2025, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.134.096302\">10.1103/PhysRevLett.134.096302</a>."},"author":[{"full_name":"Kluibenschedl, Florian","last_name":"Kluibenschedl","first_name":"Florian","id":"7499e70e-eb2c-11ec-b98b-f925648bc9d9"},{"full_name":"Koutentakis, Georgios","last_name":"Koutentakis","first_name":"Georgios","id":"d7b23d3a-9e21-11ec-b482-f76739596b95"},{"first_name":"Ragheed","id":"d1c405be-ae15-11ed-8510-ccf53278162e","full_name":"Al Hyder, Ragheed","last_name":"Al Hyder"},{"last_name":"Lemeshko","full_name":"Lemeshko, Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","first_name":"Mikhail","orcid":"0000-0002-6990-7802"}],"department":[{"_id":"MiLe"}],"acknowledgement":"We thank, in alphabetical order, Zhanybek Alpichshev, Cesare Franchini, Areg Ghazaryan, Sebastian Maehrlein, and Artem Volosniev for fruitful discussions and comments. G. M. K. received funding from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant Agreement No. 101034413. R. A. received funding from the Austrian Academy of Science ÖWA Grant No. PR1029OEAW03. M. L. acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON).","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)"},"file_date_updated":"2025-03-25T12:37:07Z","abstract":[{"lang":"eng","text":"We demonstrate the formation of ferroelectric domain-wall polarons in a minimal two-dimensional lattice model of electrons interacting with rotating dipoles. Along the domain wall, the rotors polarize in opposite directions, causing the electron to localize along a particular lattice direction. The rotor-electron coupling is identified as the origin of a structural instability in the crystal that leads to the domain-wall formation via a symmetry-breaking process. Our results provide the first theoretical description of ferroelectric polarons, as discussed in the context of soft semiconductors."}],"date_created":"2025-03-23T23:01:25Z","article_number":"096302","OA_place":"publisher","year":"2025","has_accepted_license":"1","oa":1,"scopus_import":"1","oa_version":"Published Version"},{"issue":"1","ddc":["530"],"arxiv":1,"month":"02","doi":"10.1103/physrevresearch.6.013158","_id":"15053","date_updated":"2025-05-14T09:32:25Z","quality_controlled":"1","date_published":"2024-02-13T00:00:00Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","type":"journal_article","article_processing_charge":"Yes","keyword":["General Physics and Astronomy"],"publisher":"American Physical Society","intvolume":"         6","publication_identifier":{"eissn":["2643-1564"]},"volume":6,"language":[{"iso":"eng"}],"day":"13","publication":"Physical Review Research","external_id":{"arxiv":["2304.08433"]},"publication_status":"published","oa":1,"oa_version":"Published Version","scopus_import":"1","year":"2024","article_number":"013158","has_accepted_license":"1","department":[{"_id":"MiLe"}],"acknowledgement":"We thank Clara Bachorz, Darby Bates, Markus Bohlen, Valentin Crépel, Yann Kiefer, Joanna Lis, Mihail Rabinovic, and Julian Struck for experimental assistance in the early stages of this project, and Sebastian Will for a critical reading of the manuscript. This work has been supported by Agence Nationale de la Recherche (Grant No. ANR-21-CE30-0021), the European Research Council (Grant No. ERC-2016-ADG-743159), CNRS (Tremplin@INP 2020), and Région Ile-de-France in the framework of DIM SIRTEQ (Super2D and SISCo) and DIM QuanTiP.","file_date_updated":"2024-03-04T07:53:08Z","abstract":[{"text":"Atom-based quantum simulators have had many successes in tackling challenging quantum many-body problems, owing to the precise and dynamical control that they provide over the systems' parameters. They are, however, often optimized to address a specific type of problem. Here, we present the design and implementation of a 6Li-based quantum gas platform that provides wide-ranging capabilities and is able to address a variety of quantum many-body problems. Our two-chamber architecture relies on a robust combination of gray molasses and optical transport from a laser-cooling chamber to a glass cell with excellent optical access. There, we first create unitary Fermi superfluids in a three-dimensional axially symmetric harmonic trap and characterize them using in situ thermometry, reaching temperatures below 20 nK. This allows us to enter the deep superfluid regime with samples of extreme diluteness, where the interparticle spacing is sufficiently large for direct single-atom imaging. Second, we generate optical lattice potentials with triangular and honeycomb geometry in which we study diffraction of molecular Bose-Einstein condensates, and show how going beyond the Kapitza-Dirac regime allows us to unambiguously distinguish between the two geometries. With the ability to probe quantum many-body physics in both discrete and continuous space, and its suitability for bulk and single-atom imaging, our setup represents an important step towards achieving a wide-scope quantum simulator.","lang":"eng"}],"date_created":"2024-03-04T07:42:52Z","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)"},"article_type":"original","file":[{"success":1,"creator":"dernst","file_id":"15054","content_type":"application/pdf","file_name":"2024_PhysicalReviewResearch_Jin.pdf","date_updated":"2024-03-04T07:53:08Z","relation":"main_file","checksum":"ba2ae3e3a011f8897d3803c9366a67e2","access_level":"open_access","date_created":"2024-03-04T07:53:08Z","file_size":4025988}],"citation":{"short":"S. Jin, K. Dai, J. Verstraten, M. Dixmerias, R. Al Hyder, C. Salomon, B. Peaudecerf, T. de Jongh, T. Yefsah, Physical Review Research 6 (2024).","ista":"Jin S, Dai K, Verstraten J, Dixmerias M, Al Hyder R, Salomon C, Peaudecerf B, de Jongh T, Yefsah T. 2024. Multipurpose platform for analog quantum simulation. Physical Review Research. 6(1), 013158.","ama":"Jin S, Dai K, Verstraten J, et al. Multipurpose platform for analog quantum simulation. <i>Physical Review Research</i>. 2024;6(1). doi:<a href=\"https://doi.org/10.1103/physrevresearch.6.013158\">10.1103/physrevresearch.6.013158</a>","chicago":"Jin, Shuwei, Kunlun Dai, Joris Verstraten, Maxime Dixmerias, Ragheed Al Hyder, Christophe Salomon, Bruno Peaudecerf, Tim de Jongh, and Tarik Yefsah. “Multipurpose Platform for Analog Quantum Simulation.” <i>Physical Review Research</i>. American Physical Society, 2024. <a href=\"https://doi.org/10.1103/physrevresearch.6.013158\">https://doi.org/10.1103/physrevresearch.6.013158</a>.","mla":"Jin, Shuwei, et al. “Multipurpose Platform for Analog Quantum Simulation.” <i>Physical Review Research</i>, vol. 6, no. 1, 013158, American Physical Society, 2024, doi:<a href=\"https://doi.org/10.1103/physrevresearch.6.013158\">10.1103/physrevresearch.6.013158</a>.","apa":"Jin, S., Dai, K., Verstraten, J., Dixmerias, M., Al Hyder, R., Salomon, C., … Yefsah, T. (2024). Multipurpose platform for analog quantum simulation. <i>Physical Review Research</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevresearch.6.013158\">https://doi.org/10.1103/physrevresearch.6.013158</a>","ieee":"S. Jin <i>et al.</i>, “Multipurpose platform for analog quantum simulation,” <i>Physical Review Research</i>, vol. 6, no. 1. American Physical Society, 2024."},"author":[{"last_name":"Jin","full_name":"Jin, Shuwei","first_name":"Shuwei"},{"first_name":"Kunlun","full_name":"Dai, Kunlun","last_name":"Dai"},{"last_name":"Verstraten","full_name":"Verstraten, Joris","first_name":"Joris"},{"first_name":"Maxime","last_name":"Dixmerias","full_name":"Dixmerias, Maxime"},{"last_name":"Al Hyder","full_name":"Al Hyder, Ragheed","first_name":"Ragheed","id":"d1c405be-ae15-11ed-8510-ccf53278162e"},{"full_name":"Salomon, Christophe","last_name":"Salomon","first_name":"Christophe"},{"last_name":"Peaudecerf","full_name":"Peaudecerf, Bruno","first_name":"Bruno"},{"full_name":"de Jongh, Tim","last_name":"de Jongh","first_name":"Tim"},{"full_name":"Yefsah, Tarik","last_name":"Yefsah","first_name":"Tarik"}],"DOAJ_listed":"1","title":"Multipurpose platform for analog quantum simulation"},{"_id":"15167","date_updated":"2025-09-04T13:07:33Z","quality_controlled":"1","doi":"10.1103/PhysRevA.109.033315","month":"03","issue":"3","arxiv":1,"article_processing_charge":"No","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2311.14536"}],"status":"public","type":"journal_article","date_published":"2024-03-19T00:00:00Z","publication_identifier":{"issn":["2469-9926"],"eissn":["2469-9934"]},"volume":109,"intvolume":"       109","publisher":"American Physical Society","isi":1,"publication_status":"published","publication":"Physical Review A","external_id":{"arxiv":["2311.14536"],"isi":["001198511300017"]},"corr_author":"1","day":"19","language":[{"iso":"eng"}],"scopus_import":"1","oa_version":"Preprint","oa":1,"article_number":"033315","year":"2024","abstract":[{"lang":"eng","text":"We perform a diagrammatic analysis of the energy of a mobile impurity immersed in a strongly interacting two-component Fermi gas to second order in the impurity-bath interaction. These corrections demonstrate divergent behavior in the limit of large impurity momentum. We show the fundamental processes responsible for these logarithmically divergent terms. We study the problem in the general case without any assumptions regarding the fermion-fermion interactions in the bath. We show that the divergent term can be summed up to all orders in the Fermi-Fermi interaction and that the resulting expression is equivalent to the one obtained in the few-body calculation. Finally, we provide a perturbative calculation to the second order in the Fermi-Fermi interaction, and we show the diagrams responsible for these terms."}],"date_created":"2024-03-24T23:00:59Z","department":[{"_id":"MiLe"}],"acknowledgement":"We thank Félix Werner and Kris Van Houcke for interesting discussions.","title":"Exploring beyond-mean-field logarithmic divergences in Fermi-polaron energy","author":[{"full_name":"Al Hyder, Ragheed","last_name":"Al Hyder","id":"d1c405be-ae15-11ed-8510-ccf53278162e","first_name":"Ragheed"},{"full_name":"Chevy, F.","last_name":"Chevy","first_name":"F."},{"last_name":"Leyronas","full_name":"Leyronas, X.","first_name":"X."}],"citation":{"ieee":"R. Al Hyder, F. Chevy, and X. Leyronas, “Exploring beyond-mean-field logarithmic divergences in Fermi-polaron energy,” <i>Physical Review A</i>, vol. 109, no. 3. American Physical Society, 2024.","apa":"Al Hyder, R., Chevy, F., &#38; Leyronas, X. (2024). Exploring beyond-mean-field logarithmic divergences in Fermi-polaron energy. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.109.033315\">https://doi.org/10.1103/PhysRevA.109.033315</a>","mla":"Al Hyder, Ragheed, et al. “Exploring Beyond-Mean-Field Logarithmic Divergences in Fermi-Polaron Energy.” <i>Physical Review A</i>, vol. 109, no. 3, 033315, American Physical Society, 2024, doi:<a href=\"https://doi.org/10.1103/PhysRevA.109.033315\">10.1103/PhysRevA.109.033315</a>.","ama":"Al Hyder R, Chevy F, Leyronas X. Exploring beyond-mean-field logarithmic divergences in Fermi-polaron energy. <i>Physical Review A</i>. 2024;109(3). doi:<a href=\"https://doi.org/10.1103/PhysRevA.109.033315\">10.1103/PhysRevA.109.033315</a>","chicago":"Al Hyder, Ragheed, F. Chevy, and X. Leyronas. “Exploring Beyond-Mean-Field Logarithmic Divergences in Fermi-Polaron Energy.” <i>Physical Review A</i>. American Physical Society, 2024. <a href=\"https://doi.org/10.1103/PhysRevA.109.033315\">https://doi.org/10.1103/PhysRevA.109.033315</a>.","ista":"Al Hyder R, Chevy F, Leyronas X. 2024. Exploring beyond-mean-field logarithmic divergences in Fermi-polaron energy. Physical Review A. 109(3), 033315.","short":"R. Al Hyder, F. Chevy, X. Leyronas, Physical Review A 109 (2024)."},"article_type":"original"},{"article_processing_charge":"Yes (in subscription journal)","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","status":"public","type":"journal_article","date_published":"2023-09-11T00:00:00Z","_id":"14321","quality_controlled":"1","date_updated":"2025-09-09T12:57:42Z","doi":"10.1063/5.0165806","month":"09","issue":"10","ddc":["530"],"arxiv":1,"publication_status":"published","external_id":{"pmid":["37694742"],"arxiv":["2306.17592"],"isi":["001133333600011"]},"publication":"The Journal of Chemical Physics","corr_author":"1","day":"11","language":[{"iso":"eng"}],"volume":159,"publication_identifier":{"eissn":["1089-7690"],"issn":["0021-9606"]},"project":[{"grant_number":"101062862","name":"Non-Equilibrium Field Theory of Molecular Rotations","_id":"bd7b5202-d553-11ed-ba76-9b1c1b258338"},{"_id":"2688CF98-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"801770","name":"Angulon: physics and applications of a new quasiparticle"}],"intvolume":"       159","publisher":"AIP Publishing","ec_funded":1,"isi":1,"keyword":["Physical and Theoretical Chemistry","General Physics and Astronomy"],"has_accepted_license":"1","article_number":"104103","year":"2023","scopus_import":"1","oa_version":"Published Version","oa":1,"title":"Achiral dipoles on a ferromagnet can affect its magnetization direction","author":[{"full_name":"Al Hyder, Ragheed","last_name":"Al Hyder","id":"d1c405be-ae15-11ed-8510-ccf53278162e","first_name":"Ragheed"},{"full_name":"Cappellaro, Alberto","last_name":"Cappellaro","orcid":"0000-0001-6110-2359","first_name":"Alberto","id":"9d13b3cb-30a2-11eb-80dc-f772505e8660"},{"last_name":"Lemeshko","full_name":"Lemeshko, Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","first_name":"Mikhail","orcid":"0000-0002-6990-7802"},{"orcid":"0000-0003-0393-5525","id":"37D278BC-F248-11E8-B48F-1D18A9856A87","first_name":"Artem","full_name":"Volosniev, Artem","last_name":"Volosniev"}],"citation":{"ieee":"R. Al Hyder, A. Cappellaro, M. Lemeshko, and A. Volosniev, “Achiral dipoles on a ferromagnet can affect its magnetization direction,” <i>The Journal of Chemical Physics</i>, vol. 159, no. 10. AIP Publishing, 2023.","apa":"Al Hyder, R., Cappellaro, A., Lemeshko, M., &#38; Volosniev, A. (2023). Achiral dipoles on a ferromagnet can affect its magnetization direction. <i>The Journal of Chemical Physics</i>. AIP Publishing. <a href=\"https://doi.org/10.1063/5.0165806\">https://doi.org/10.1063/5.0165806</a>","mla":"Al Hyder, Ragheed, et al. “Achiral Dipoles on a Ferromagnet Can Affect Its Magnetization Direction.” <i>The Journal of Chemical Physics</i>, vol. 159, no. 10, 104103, AIP Publishing, 2023, doi:<a href=\"https://doi.org/10.1063/5.0165806\">10.1063/5.0165806</a>.","ista":"Al Hyder R, Cappellaro A, Lemeshko M, Volosniev A. 2023. Achiral dipoles on a ferromagnet can affect its magnetization direction. The Journal of Chemical Physics. 159(10), 104103.","short":"R. Al Hyder, A. Cappellaro, M. Lemeshko, A. Volosniev, The Journal of Chemical Physics 159 (2023).","ama":"Al Hyder R, Cappellaro A, Lemeshko M, Volosniev A. Achiral dipoles on a ferromagnet can affect its magnetization direction. <i>The Journal of Chemical Physics</i>. 2023;159(10). doi:<a href=\"https://doi.org/10.1063/5.0165806\">10.1063/5.0165806</a>","chicago":"Al Hyder, Ragheed, Alberto Cappellaro, Mikhail Lemeshko, and Artem Volosniev. “Achiral Dipoles on a Ferromagnet Can Affect Its Magnetization Direction.” <i>The Journal of Chemical Physics</i>. AIP Publishing, 2023. <a href=\"https://doi.org/10.1063/5.0165806\">https://doi.org/10.1063/5.0165806</a>."},"article_type":"original","pmid":1,"file":[{"access_level":"open_access","checksum":"507ab65ab29e2c987c94cabad7c5370b","date_created":"2023-09-13T09:34:20Z","file_size":5749653,"relation":"main_file","date_updated":"2023-09-13T09:34:20Z","file_name":"104103_1_5.0165806.pdf","content_type":"application/pdf","file_id":"14322","creator":"acappell","success":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)"},"file_date_updated":"2023-09-13T09:34:20Z","abstract":[{"lang":"eng","text":"We demonstrate the possibility of a coupling between the magnetization direction of a ferromagnet and the tilting angle of adsorbed achiral molecules. To illustrate the mechanism of the coupling, we analyze a minimal Stoner model that includes Rashba spin–orbit coupling due to the electric field on the surface of the ferromagnet. The proposed mechanism allows us to study magnetic anisotropy of the system with an extended Stoner–Wohlfarth model and argue that adsorbed achiral molecules can change magnetocrystalline anisotropy of the substrate. Our research aims to motivate further experimental studies of the current-free chirality induced spin selectivity effect involving both enantiomers."}],"date_created":"2023-09-13T09:25:09Z","department":[{"_id":"MiLe"}],"acknowledgement":"We thank Zhanybek Alpichshev, Mohammad Reza Safari, Binghai Yan, and Yossi Paltiel for enlightening discussions.\r\nM.L. acknowledges support from the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). A. C. received funding from the European Union’s Horizon Europe research and innovation program under the Marie Skłodowska-Curie Grant Agreement No. 101062862 - NeqMolRot."}]