[{"scopus_import":"1","article_processing_charge":"No","day":"19","article_type":"original","citation":{"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.","ieee":"R. Al Hyder, F. Chevy, and X. Leyronas, “Exploring beyond-mean-field logarithmic divergences in Fermi-polaron energy,” Physical Review A, vol. 109, no. 3. American Physical Society, 2024.","apa":"Al Hyder, R., Chevy, F., & Leyronas, X. (2024). Exploring beyond-mean-field logarithmic divergences in Fermi-polaron energy. Physical Review A. American Physical Society. https://doi.org/10.1103/PhysRevA.109.033315","ama":"Al Hyder R, Chevy F, Leyronas X. Exploring beyond-mean-field logarithmic divergences in Fermi-polaron energy. Physical Review A. 2024;109(3). doi:10.1103/PhysRevA.109.033315","chicago":"Al Hyder, Ragheed, F. Chevy, and X. Leyronas. “Exploring Beyond-Mean-Field Logarithmic Divergences in Fermi-Polaron Energy.” Physical Review A. American Physical Society, 2024. https://doi.org/10.1103/PhysRevA.109.033315.","mla":"Al Hyder, Ragheed, et al. “Exploring Beyond-Mean-Field Logarithmic Divergences in Fermi-Polaron Energy.” Physical Review A, vol. 109, no. 3, 033315, American Physical Society, 2024, doi:10.1103/PhysRevA.109.033315.","short":"R. Al Hyder, F. Chevy, X. Leyronas, Physical Review A 109 (2024)."},"publication":"Physical Review A","date_published":"2024-03-19T00:00:00Z","type":"journal_article","issue":"3","abstract":[{"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.","lang":"eng"}],"intvolume":" 109","title":"Exploring beyond-mean-field logarithmic divergences in Fermi-polaron energy","status":"public","_id":"15167","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa_version":"Preprint","publication_identifier":{"issn":["2469-9926"],"eissn":["2469-9934"]},"month":"03","quality_controlled":"1","main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2311.14536"}],"oa":1,"external_id":{"arxiv":["2311.14536"]},"language":[{"iso":"eng"}],"doi":"10.1103/PhysRevA.109.033315","article_number":"033315","publisher":"American Physical Society","department":[{"_id":"MiLe"}],"publication_status":"published","year":"2024","acknowledgement":"We thank Félix Werner and Kris Van Houcke for interesting discussions.","volume":109,"date_updated":"2024-03-25T07:36:55Z","date_created":"2024-03-24T23:00:59Z","author":[{"last_name":"Al Hyder","first_name":"Ragheed","id":"d1c405be-ae15-11ed-8510-ccf53278162e","full_name":"Al Hyder, Ragheed"},{"full_name":"Chevy, F.","last_name":"Chevy","first_name":"F."},{"last_name":"Leyronas","first_name":"X.","full_name":"Leyronas, X."}]},{"month":"03","publication_identifier":{"issn":["2643-1564"]},"quality_controlled":"1","project":[{"_id":"fc2ed2f7-9c52-11eb-aca3-c01059dda49c","grant_number":"101034413","call_identifier":"H2020","name":"IST-BRIDGE: International postdoctoral program"}],"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"oa":1,"external_id":{"arxiv":["2310.17995"]},"language":[{"iso":"eng"}],"doi":"10.1103/physrevresearch.6.013257","article_number":"013257","file_date_updated":"2024-03-25T09:24:55Z","ec_funded":1,"publication_status":"published","department":[{"_id":"MiLe"}],"publisher":"American Physical Society","acknowledgement":"This work has been funded by the Cluster of Excellence “Advanced Imaging of Matter” of the Deutsche Forschungsgemeinschaft (DFG) - EXC 2056 - Project ID 390715994.\r\nG.M.K. gratefully acknowledges funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 101034413.","year":"2024","date_updated":"2024-03-25T09:27:37Z","date_created":"2024-03-25T08:57:07Z","volume":6,"author":[{"last_name":"Becker","first_name":"A.","full_name":"Becker, A."},{"id":"d7b23d3a-9e21-11ec-b482-f76739596b95","last_name":"Koutentakis","first_name":"Georgios","full_name":"Koutentakis, Georgios"},{"full_name":"Schmelcher, P.","last_name":"Schmelcher","first_name":"P."}],"scopus_import":"1","day":"01","has_accepted_license":"1","article_processing_charge":"Yes","article_type":"original","publication":"Physical Review Research","citation":{"ama":"Becker A, Koutentakis G, Schmelcher P. Synthetic dimension-induced pseudo Jahn-Teller effect in one-dimensional confined fermions. Physical Review Research. 2024;6(1). doi:10.1103/physrevresearch.6.013257","ieee":"A. Becker, G. Koutentakis, and P. Schmelcher, “Synthetic dimension-induced pseudo Jahn-Teller effect in one-dimensional confined fermions,” Physical Review Research, vol. 6, no. 1. American Physical Society, 2024.","apa":"Becker, A., Koutentakis, G., & Schmelcher, P. (2024). Synthetic dimension-induced pseudo Jahn-Teller effect in one-dimensional confined fermions. Physical Review Research. American Physical Society. https://doi.org/10.1103/physrevresearch.6.013257","ista":"Becker A, Koutentakis G, Schmelcher P. 2024. Synthetic dimension-induced pseudo Jahn-Teller effect in one-dimensional confined fermions. Physical Review Research. 6(1), 013257.","short":"A. Becker, G. Koutentakis, P. Schmelcher, Physical Review Research 6 (2024).","mla":"Becker, A., et al. “Synthetic Dimension-Induced Pseudo Jahn-Teller Effect in One-Dimensional Confined Fermions.” Physical Review Research, vol. 6, no. 1, 013257, American Physical Society, 2024, doi:10.1103/physrevresearch.6.013257.","chicago":"Becker, A., Georgios Koutentakis, and P. Schmelcher. “Synthetic Dimension-Induced Pseudo Jahn-Teller Effect in One-Dimensional Confined Fermions.” Physical Review Research. American Physical Society, 2024. https://doi.org/10.1103/physrevresearch.6.013257."},"date_published":"2024-03-01T00:00:00Z","type":"journal_article","abstract":[{"text":"We demonstrate the failure of the adiabatic Born-Oppenheimer approximation to describe the ground state of a quantum impurity within an ultracold Fermi gas despite substantial mass differences between the bath and impurity species. Increasing repulsion leads to the appearance of nonadiabatic couplings between the fast bath and slow impurity degrees of freedom, which reduce the parity symmetry of the latter according to the pseudo Jahn-Teller effect. The presence of this mechanism is associated to a conical intersection involving the impurity position and the inverse of the interaction strength, which acts as a synthetic dimension. We elucidate the presence of these effects via a detailed ground-state analysis involving the comparison of ab initio fully correlated simulations with effective models. Our study suggests ultracold atomic ensembles as potent emulators of complex molecular phenomena.","lang":"eng"}],"issue":"1","ddc":["530"],"title":"Synthetic dimension-induced pseudo Jahn-Teller effect in one-dimensional confined fermions","status":"public","intvolume":" 6","_id":"15181","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa_version":"Published Version","file":[{"file_name":"2024_PhysicalReviewResearch_Becker.pdf","access_level":"open_access","creator":"dernst","content_type":"application/pdf","file_size":2207067,"file_id":"15183","relation":"main_file","date_created":"2024-03-25T09:24:55Z","date_updated":"2024-03-25T09:24:55Z","success":1,"checksum":"4e0e58d1f58386fb016284c84db2a300"}]},{"oa_version":"Published Version","file":[{"checksum":"6068b62874c0099628a108bb9c5c6bd2","success":1,"date_created":"2023-02-13T10:38:10Z","date_updated":"2023-02-13T10:38:10Z","relation":"main_file","file_id":"12546","content_type":"application/pdf","file_size":865150,"creator":"dernst","access_level":"open_access","file_name":"2023_PhysicalReviewResearch_Ghazaryan.pdf"}],"_id":"12534","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","title":"Dissipative dynamics of an impurity with spin-orbit coupling","status":"public","ddc":["530"],"intvolume":" 5","abstract":[{"text":"Brownian motion of a mobile impurity in a bath is affected by spin-orbit coupling (SOC). Here, we discuss a Caldeira-Leggett-type model that can be used to propose and interpret quantum simulators of this problem in cold Bose gases. First, we derive a master equation that describes the model and explore it in a one-dimensional (1D) setting. To validate the standard assumptions needed for our derivation, we analyze available experimental data without SOC; as a byproduct, this analysis suggests that the quench dynamics of the impurity is beyond the 1D Bose-polaron approach at temperatures currently accessible in a cold-atom laboratory—motion of the impurity is mainly driven by dissipation. For systems with SOC, we demonstrate that 1D spin-orbit coupling can be gauged out even in the presence of dissipation—the information about SOC is incorporated in the initial conditions. Observables sensitive to this information (such as spin densities) can be used to study formation of steady spin polarization domains during quench dynamics.","lang":"eng"}],"issue":"1","type":"journal_article","date_published":"2023-01-20T00:00:00Z","publication":"Physical Review Research","citation":{"apa":"Ghazaryan, A., Cappellaro, A., Lemeshko, M., & Volosniev, A. (2023). Dissipative dynamics of an impurity with spin-orbit coupling. Physical Review Research. American Physical Society. https://doi.org/10.1103/physrevresearch.5.013029","ieee":"A. Ghazaryan, A. Cappellaro, M. Lemeshko, and A. Volosniev, “Dissipative dynamics of an impurity with spin-orbit coupling,” Physical Review Research, vol. 5, no. 1. American Physical Society, 2023.","ista":"Ghazaryan A, Cappellaro A, Lemeshko M, Volosniev A. 2023. Dissipative dynamics of an impurity with spin-orbit coupling. Physical Review Research. 5(1), 013029.","ama":"Ghazaryan A, Cappellaro A, Lemeshko M, Volosniev A. Dissipative dynamics of an impurity with spin-orbit coupling. Physical Review Research. 2023;5(1). doi:10.1103/physrevresearch.5.013029","chicago":"Ghazaryan, Areg, Alberto Cappellaro, Mikhail Lemeshko, and Artem Volosniev. “Dissipative Dynamics of an Impurity with Spin-Orbit Coupling.” Physical Review Research. American Physical Society, 2023. https://doi.org/10.1103/physrevresearch.5.013029.","short":"A. Ghazaryan, A. Cappellaro, M. Lemeshko, A. Volosniev, Physical Review Research 5 (2023).","mla":"Ghazaryan, Areg, et al. “Dissipative Dynamics of an Impurity with Spin-Orbit Coupling.” Physical Review Research, vol. 5, no. 1, 013029, American Physical Society, 2023, doi:10.1103/physrevresearch.5.013029."},"article_type":"original","day":"20","has_accepted_license":"1","article_processing_charge":"No","scopus_import":"1","author":[{"first_name":"Areg","last_name":"Ghazaryan","id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-9666-3543","full_name":"Ghazaryan, Areg"},{"full_name":"Cappellaro, Alberto","last_name":"Cappellaro","first_name":"Alberto","orcid":"0000-0001-6110-2359","id":"9d13b3cb-30a2-11eb-80dc-f772505e8660"},{"last_name":"Lemeshko","first_name":"Mikhail","orcid":"0000-0002-6990-7802","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","full_name":"Lemeshko, Mikhail"},{"first_name":"Artem","last_name":"Volosniev","id":"37D278BC-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-0393-5525","full_name":"Volosniev, Artem"}],"date_created":"2023-02-10T09:02:26Z","date_updated":"2023-02-20T07:02:00Z","volume":5,"acknowledgement":"We thank Rafael Barfknecht for help at the initial stages of this project; Fabian Brauneis for useful discussions; Miguel A. Garcia-March, Georgios Koutentakis, and Simeon Mistakidis\r\nfor comments on the paper. M.L. acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON).","year":"2023","publication_status":"published","department":[{"_id":"MiLe"}],"publisher":"American Physical Society","file_date_updated":"2023-02-13T10:38:10Z","ec_funded":1,"article_number":"013029","doi":"10.1103/physrevresearch.5.013029","language":[{"iso":"eng"}],"oa":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"quality_controlled":"1","project":[{"_id":"2688CF98-B435-11E9-9278-68D0E5697425","grant_number":"801770","name":"Angulon: physics and applications of a new quasiparticle","call_identifier":"H2020"}],"month":"01","publication_identifier":{"issn":["2643-1564"]}},{"file_date_updated":"2023-07-19T06:55:39Z","ec_funded":1,"publication_status":"published","publisher":"American Chemical Society","department":[{"_id":"MiLe"},{"_id":"ZhAl"}],"year":"2023","acknowledgement":"We thank Bingqing Cheng and Hong-Zhou Ye for valuable discussions; Y.W.’s work at IST Austria was supported through ISTernship summer internship program funded by OeADGmbH; D.L. and Z.A. acknowledge support by IST Austria (ISTA); M.L. acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON).\r\nA.A.Z. and O.M.B. acknowledge support by KAUST.","date_updated":"2023-07-19T06:59:19Z","date_created":"2023-07-18T11:13:17Z","volume":14,"author":[{"full_name":"Wei, Yujing","orcid":"0000-0001-8913-9719","id":"0c5ff007-2600-11ee-b896-98bd8d663294","last_name":"Wei","first_name":"Yujing"},{"full_name":"Volosniev, Artem","last_name":"Volosniev","first_name":"Artem","orcid":"0000-0003-0393-5525","id":"37D278BC-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Lorenc, Dusan","first_name":"Dusan","last_name":"Lorenc","id":"40D8A3E6-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Zhumekenov, Ayan A.","first_name":"Ayan A.","last_name":"Zhumekenov"},{"last_name":"Bakr","first_name":"Osman M.","full_name":"Bakr, Osman M."},{"full_name":"Lemeshko, Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","first_name":"Mikhail","last_name":"Lemeshko"},{"first_name":"Zhanybek","last_name":"Alpichshev","id":"45E67A2A-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-7183-5203","full_name":"Alpichshev, Zhanybek"}],"month":"07","publication_identifier":{"eissn":["1948-7185"]},"isi":1,"quality_controlled":"1","project":[{"call_identifier":"H2020","name":"Angulon: physics and applications of a new quasiparticle","grant_number":"801770","_id":"2688CF98-B435-11E9-9278-68D0E5697425"}],"external_id":{"isi":["001022811500001"],"arxiv":["2304.14198"]},"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"oa":1,"language":[{"iso":"eng"}],"doi":"10.1021/acs.jpclett.3c01158","type":"journal_article","abstract":[{"lang":"eng","text":"A rotating organic cation and a dynamically disordered soft inorganic cage are the hallmark features of organic-inorganic lead-halide perovskites. Understanding the interplay between these two subsystems is a challenging problem, but it is this coupling that is widely conjectured to be responsible for the unique behavior of photocarriers in these materials. In this work, we use the fact that the polarizability of the organic cation strongly depends on the ambient electrostatic environment to put the molecule forward as a sensitive probe of the local crystal fields inside the lattice cell. We measure the average polarizability of the C/N–H bond stretching mode by means of infrared spectroscopy, which allows us to deduce the character of the motion of the cation molecule, find the magnitude of the local crystal field, and place an estimate on the strength of the hydrogen bond between the hydrogen and halide atoms. Our results pave the way for understanding electric fields in lead-halide perovskites using infrared bond spectroscopy."}],"issue":"27","ddc":["530"],"title":"Bond polarizability as a probe of local crystal fields in hybrid lead-halide perovskites","status":"public","intvolume":" 14","_id":"13251","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","file":[{"file_name":"2023_JourPhysChemistry_Wei.pdf","access_level":"open_access","file_size":2121252,"content_type":"application/pdf","creator":"dernst","relation":"main_file","file_id":"13253","date_created":"2023-07-19T06:55:39Z","date_updated":"2023-07-19T06:55:39Z","checksum":"c0c040063f06a51b9c463adc504f1a23","success":1}],"oa_version":"Published Version","keyword":["General Materials Science","Physical and Theoretical Chemistry"],"day":"05","has_accepted_license":"1","article_processing_charge":"Yes (via OA deal)","article_type":"original","page":"6309-6314","publication":"The Journal of Physical Chemistry Letters","citation":{"short":"Y. Wei, A. Volosniev, D. Lorenc, A.A. Zhumekenov, O.M. Bakr, M. Lemeshko, Z. Alpichshev, The Journal of Physical Chemistry Letters 14 (2023) 6309–6314.","mla":"Wei, Yujing, et al. “Bond Polarizability as a Probe of Local Crystal Fields in Hybrid Lead-Halide Perovskites.” The Journal of Physical Chemistry Letters, vol. 14, no. 27, American Chemical Society, 2023, pp. 6309–14, doi:10.1021/acs.jpclett.3c01158.","chicago":"Wei, Yujing, Artem Volosniev, Dusan Lorenc, Ayan A. Zhumekenov, Osman M. Bakr, Mikhail Lemeshko, and Zhanybek Alpichshev. “Bond Polarizability as a Probe of Local Crystal Fields in Hybrid Lead-Halide Perovskites.” The Journal of Physical Chemistry Letters. American Chemical Society, 2023. https://doi.org/10.1021/acs.jpclett.3c01158.","ama":"Wei Y, Volosniev A, Lorenc D, et al. Bond polarizability as a probe of local crystal fields in hybrid lead-halide perovskites. The Journal of Physical Chemistry Letters. 2023;14(27):6309-6314. doi:10.1021/acs.jpclett.3c01158","ieee":"Y. Wei et al., “Bond polarizability as a probe of local crystal fields in hybrid lead-halide perovskites,” The Journal of Physical Chemistry Letters, vol. 14, no. 27. American Chemical Society, pp. 6309–6314, 2023.","apa":"Wei, Y., Volosniev, A., Lorenc, D., Zhumekenov, A. A., Bakr, O. M., Lemeshko, M., & Alpichshev, Z. (2023). Bond polarizability as a probe of local crystal fields in hybrid lead-halide perovskites. The Journal of Physical Chemistry Letters. American Chemical Society. https://doi.org/10.1021/acs.jpclett.3c01158","ista":"Wei Y, Volosniev A, Lorenc D, Zhumekenov AA, Bakr OM, Lemeshko M, Alpichshev Z. 2023. Bond polarizability as a probe of local crystal fields in hybrid lead-halide perovskites. The Journal of Physical Chemistry Letters. 14(27), 6309–6314."},"date_published":"2023-07-05T00:00:00Z"},{"citation":{"ama":"Rammelmüller L, Huber D, Volosniev A. A modular implementation of an effective interaction approach for harmonically trapped fermions in 1D. SciPost Physics Codebases. 2023. doi:10.21468/scipostphyscodeb.12","ista":"Rammelmüller L, Huber D, Volosniev A. 2023. A modular implementation of an effective interaction approach for harmonically trapped fermions in 1D. SciPost Physics Codebases., 12.","ieee":"L. Rammelmüller, D. Huber, and A. Volosniev, “A modular implementation of an effective interaction approach for harmonically trapped fermions in 1D,” SciPost Physics Codebases. SciPost Foundation, 2023.","apa":"Rammelmüller, L., Huber, D., & Volosniev, A. (2023). A modular implementation of an effective interaction approach for harmonically trapped fermions in 1D. SciPost Physics Codebases. SciPost Foundation. https://doi.org/10.21468/scipostphyscodeb.12","mla":"Rammelmüller, Lukas, et al. “A Modular Implementation of an Effective Interaction Approach for Harmonically Trapped Fermions in 1D.” SciPost Physics Codebases, 12, SciPost Foundation, 2023, doi:10.21468/scipostphyscodeb.12.","short":"L. Rammelmüller, D. Huber, A. Volosniev, SciPost Physics Codebases (2023).","chicago":"Rammelmüller, Lukas, David Huber, and Artem Volosniev. “A Modular Implementation of an Effective Interaction Approach for Harmonically Trapped Fermions in 1D.” SciPost Physics Codebases. SciPost Foundation, 2023. https://doi.org/10.21468/scipostphyscodeb.12."},"publication":"SciPost Physics Codebases","article_type":"original","date_published":"2023-04-19T00:00:00Z","article_processing_charge":"No","has_accepted_license":"1","day":"19","_id":"13276","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","title":"A modular implementation of an effective interaction approach for harmonically trapped fermions in 1D","ddc":["530"],"status":"public","file":[{"file_id":"13330","relation":"main_file","success":1,"checksum":"f583a70fe915d2208c803f5afb426daa","date_updated":"2023-07-31T09:09:23Z","date_created":"2023-07-31T09:09:23Z","access_level":"open_access","file_name":"2023_SciPostPhysCodebase_Rammelmueller.pdf","creator":"dernst","content_type":"application/pdf","file_size":551418}],"oa_version":"Published Version","type":"journal_article","abstract":[{"lang":"eng","text":"We introduce a generic and accessible implementation of an exact diagonalization method for studying few-fermion models. Our aim is to provide a testbed for the newcomers to the field as well as a stepping stone for trying out novel optimizations and approximations. This userguide consists of a description of the algorithm, and several examples in varying orders of sophistication. In particular, we exemplify our routine using an effective-interaction approach that fixes the low-energy physics. We benchmark this approach against the existing data, and show that it is able to deliver state-of-the-art numerical results at a significantly reduced computational cost."}],"external_id":{"arxiv":["2202.04603"]},"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"oa":1,"project":[{"_id":"260C2330-B435-11E9-9278-68D0E5697425","grant_number":"754411","name":"ISTplus - Postdoctoral Fellowships","call_identifier":"H2020"}],"quality_controlled":"1","doi":"10.21468/scipostphyscodeb.12","language":[{"iso":"eng"}],"publication_identifier":{"issn":["2949-804X"]},"month":"04","acknowledgement":"We acknowledge fruitful discussions with Hans-Werner Hammer and thank Gerhard Zürn and\r\nPietro Massignan for sending us their data. We thank Fabian Brauneis for beta-testing the\r\nprovided code-package, and comments on the manuscript.\r\nL.R. is supported by FP7/ERC Consolidator Grant QSIMCORR, No.\r\n771891, and the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under\r\nGermany’s Excellence Strategy –EXC–2111–390814868. A.G.V. acknowledges support\r\nby European Union’s Horizon 2020 research and innovation programme under the Marie\r\nSkłodowska-Curie Grant Agreement No. 754411.","year":"2023","department":[{"_id":"MiLe"}],"publisher":"SciPost Foundation","publication_status":"published","related_material":{"record":[{"relation":"research_data","status":"public","id":"13275"}]},"author":[{"full_name":"Rammelmüller, Lukas","last_name":"Rammelmüller","first_name":"Lukas"},{"full_name":"Huber, David","first_name":"David","last_name":"Huber"},{"id":"37D278BC-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-0393-5525","first_name":"Artem","last_name":"Volosniev","full_name":"Volosniev, Artem"}],"date_updated":"2023-07-31T09:16:02Z","date_created":"2023-07-24T10:47:15Z","article_number":"12","ec_funded":1,"file_date_updated":"2023-07-31T09:09:23Z"},{"ec_funded":1,"abstract":[{"lang":"eng","text":"We introduce a generic and accessible implementation of an exact diagonalization method for studying few-fermion models. Our aim is to provide a testbed for the newcomers to the field as well as a stepping stone for trying out novel optimizations and approximations. This userguide consists of a description of the algorithm, and several examples in varying orders of sophistication. In particular, we exemplify our routine using an effective-interaction approach that fixes the low-energy physics. We benchmark this approach against the existing data, and show that it is able to deliver state-of-the-art numerical results at a significantly reduced computational cost."}],"type":"research_data_reference","oa_version":"Published Version","date_created":"2023-07-24T10:46:23Z","date_updated":"2023-07-31T09:16:02Z","related_material":{"record":[{"relation":"used_in_publication","status":"public","id":"13276"}]},"author":[{"full_name":"Rammelmüller, Lukas","first_name":"Lukas","last_name":"Rammelmüller"},{"first_name":"David","last_name":"Huber","full_name":"Huber, David"},{"first_name":"Artem","last_name":"Volosniev","id":"37D278BC-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-0393-5525","full_name":"Volosniev, Artem"}],"publisher":"SciPost Foundation","department":[{"_id":"MiLe"}],"status":"public","ddc":["530"],"title":"Codebase release 1.0 for FermiFCI","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"13275","year":"2023","article_processing_charge":"No","day":"19","month":"04","doi":"10.21468/scipostphyscodeb.12-r1.0","date_published":"2023-04-19T00:00:00Z","project":[{"_id":"260C2330-B435-11E9-9278-68D0E5697425","grant_number":"754411","name":"ISTplus - Postdoctoral Fellowships","call_identifier":"H2020"}],"oa":1,"citation":{"mla":"Rammelmüller, Lukas, et al. Codebase Release 1.0 for FermiFCI. SciPost Foundation, 2023, doi:10.21468/scipostphyscodeb.12-r1.0.","short":"L. Rammelmüller, D. Huber, A. Volosniev, (2023).","chicago":"Rammelmüller, Lukas, David Huber, and Artem Volosniev. “Codebase Release 1.0 for FermiFCI.” SciPost Foundation, 2023. https://doi.org/10.21468/scipostphyscodeb.12-r1.0.","ama":"Rammelmüller L, Huber D, Volosniev A. Codebase release 1.0 for FermiFCI. 2023. doi:10.21468/scipostphyscodeb.12-r1.0","ista":"Rammelmüller L, Huber D, Volosniev A. 2023. Codebase release 1.0 for FermiFCI, SciPost Foundation, 10.21468/scipostphyscodeb.12-r1.0.","ieee":"L. Rammelmüller, D. Huber, and A. Volosniev, “Codebase release 1.0 for FermiFCI.” SciPost Foundation, 2023.","apa":"Rammelmüller, L., Huber, D., & Volosniev, A. (2023). Codebase release 1.0 for FermiFCI. SciPost Foundation. https://doi.org/10.21468/scipostphyscodeb.12-r1.0"},"main_file_link":[{"open_access":"1","url":"https://doi.org/10.21468/SciPostPhysCodeb.12-r1.0"}]},{"scopus_import":"1","keyword":["General Physics and Astronomy"],"day":"10","article_processing_charge":"No","publication":"Physical Review Letters","citation":{"ama":"Volosniev A, Shiva Kumar A, Lorenc D, et al. Spin-electric coupling in lead halide perovskites. Physical Review Letters. 2023;130(10). doi:10.1103/physrevlett.130.106901","ista":"Volosniev A, Shiva Kumar A, Lorenc D, Ashourishokri Y, Zhumekenov AA, Bakr OM, Lemeshko M, Alpichshev Z. 2023. Spin-electric coupling in lead halide perovskites. Physical Review Letters. 130(10), 106901.","apa":"Volosniev, A., Shiva Kumar, A., Lorenc, D., Ashourishokri, Y., Zhumekenov, A. A., Bakr, O. M., … Alpichshev, Z. (2023). Spin-electric coupling in lead halide perovskites. Physical Review Letters. American Physical Society. https://doi.org/10.1103/physrevlett.130.106901","ieee":"A. Volosniev et al., “Spin-electric coupling in lead halide perovskites,” Physical Review Letters, vol. 130, no. 10. American Physical Society, 2023.","mla":"Volosniev, Artem, et al. “Spin-Electric Coupling in Lead Halide Perovskites.” Physical Review Letters, vol. 130, no. 10, 106901, American Physical Society, 2023, doi:10.1103/physrevlett.130.106901.","short":"A. Volosniev, A. Shiva Kumar, D. Lorenc, Y. Ashourishokri, A.A. Zhumekenov, O.M. Bakr, M. Lemeshko, Z. Alpichshev, Physical Review Letters 130 (2023).","chicago":"Volosniev, Artem, Abhishek Shiva Kumar, Dusan Lorenc, Younes Ashourishokri, Ayan A. Zhumekenov, Osman M. Bakr, Mikhail Lemeshko, and Zhanybek Alpichshev. “Spin-Electric Coupling in Lead Halide Perovskites.” Physical Review Letters. American Physical Society, 2023. https://doi.org/10.1103/physrevlett.130.106901."},"article_type":"original","date_published":"2023-03-10T00:00:00Z","type":"journal_article","abstract":[{"text":"Lead halide perovskites enjoy a number of remarkable optoelectronic properties. To explain their origin, it is necessary to study how electromagnetic fields interact with these systems. We address this problem here by studying two classical quantities: Faraday rotation and the complex refractive index in a paradigmatic perovskite CH3NH3PbBr3 in a broad wavelength range. We find that the minimal coupling of electromagnetic fields to the k⋅p Hamiltonian is insufficient to describe the observed data even on the qualitative level. To amend this, we demonstrate that there exists a relevant atomic-level coupling between electromagnetic fields and the spin degree of freedom. This spin-electric coupling allows for quantitative description of a number of previous as well as present experimental data. In particular, we use it here to show that the Faraday effect in lead halide perovskites is dominated by the Zeeman splitting of the energy levels and has a substantial beyond-Becquerel contribution. Finally, we present general symmetry-based phenomenological arguments that in the low-energy limit our effective model includes all basis coupling terms to the electromagnetic field in the linear order.","lang":"eng"}],"issue":"10","_id":"12723","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","title":"Spin-electric coupling in lead halide perovskites","intvolume":" 130","oa_version":"Preprint","month":"03","publication_identifier":{"eissn":["1079-7114"],"issn":["0031-9007"]},"main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2203.09443","open_access":"1"}],"external_id":{"arxiv":["2203.09443"],"isi":["000982435900002"]},"oa":1,"isi":1,"quality_controlled":"1","doi":"10.1103/physrevlett.130.106901","language":[{"iso":"eng"}],"article_number":"106901","year":"2023","publication_status":"published","publisher":"American Physical Society","department":[{"_id":"GradSch"},{"_id":"ZhAl"},{"_id":"MiLe"}],"author":[{"id":"37D278BC-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-0393-5525","first_name":"Artem","last_name":"Volosniev","full_name":"Volosniev, Artem"},{"id":"5e9a6931-eb97-11eb-a6c2-e96f7058d77a","last_name":"Shiva Kumar","first_name":"Abhishek","full_name":"Shiva Kumar, Abhishek"},{"id":"40D8A3E6-F248-11E8-B48F-1D18A9856A87","first_name":"Dusan","last_name":"Lorenc","full_name":"Lorenc, Dusan"},{"first_name":"Younes","last_name":"Ashourishokri","id":"e32c111f-f6e0-11ea-865d-eb955baea334","full_name":"Ashourishokri, Younes"},{"full_name":"Zhumekenov, Ayan A.","last_name":"Zhumekenov","first_name":"Ayan A."},{"full_name":"Bakr, Osman M.","first_name":"Osman M.","last_name":"Bakr"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","first_name":"Mikhail","last_name":"Lemeshko","full_name":"Lemeshko, Mikhail"},{"full_name":"Alpichshev, Zhanybek","last_name":"Alpichshev","first_name":"Zhanybek","orcid":"0000-0002-7183-5203","id":"45E67A2A-F248-11E8-B48F-1D18A9856A87"}],"date_created":"2023-03-14T13:11:59Z","date_updated":"2023-08-01T13:39:04Z","volume":130},{"month":"03","publication_identifier":{"eissn":["2469-9969"],"issn":["2469-9950"]},"doi":"10.1103/physrevb.107.125201","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2204.04022"}],"oa":1,"external_id":{"arxiv":["2204.04022"],"isi":["000972602200006"]},"quality_controlled":"1","isi":1,"article_number":"125201","author":[{"full_name":"Volosniev, Artem","last_name":"Volosniev","first_name":"Artem","orcid":"0000-0003-0393-5525","id":"37D278BC-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Abhishek","last_name":"Shiva Kumar","id":"5e9a6931-eb97-11eb-a6c2-e96f7058d77a","full_name":"Shiva Kumar, Abhishek"},{"full_name":"Lorenc, Dusan","first_name":"Dusan","last_name":"Lorenc","id":"40D8A3E6-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Ashourishokri, Younes","id":"e32c111f-f6e0-11ea-865d-eb955baea334","last_name":"Ashourishokri","first_name":"Younes"},{"full_name":"Zhumekenov, Ayan","last_name":"Zhumekenov","first_name":"Ayan"},{"first_name":"Osman M.","last_name":"Bakr","full_name":"Bakr, Osman M."},{"full_name":"Lemeshko, Mikhail","orcid":"0000-0002-6990-7802","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","last_name":"Lemeshko","first_name":"Mikhail"},{"full_name":"Alpichshev, Zhanybek","last_name":"Alpichshev","first_name":"Zhanybek","orcid":"0000-0002-7183-5203","id":"45E67A2A-F248-11E8-B48F-1D18A9856A87"}],"date_created":"2023-03-14T13:13:05Z","date_updated":"2023-08-01T13:39:47Z","volume":107,"year":"2023","publication_status":"published","department":[{"_id":"GradSch"},{"_id":"ZhAl"},{"_id":"MiLe"}],"publisher":"American Physical Society","day":"15","article_processing_charge":"No","scopus_import":"1","date_published":"2023-03-15T00:00:00Z","publication":"Physical Review B","citation":{"ieee":"A. Volosniev et al., “Effective model for studying optical properties of lead halide perovskites,” Physical Review B, vol. 107, no. 12. American Physical Society, 2023.","apa":"Volosniev, A., Shiva Kumar, A., Lorenc, D., Ashourishokri, Y., Zhumekenov, A., Bakr, O. M., … Alpichshev, Z. (2023). Effective model for studying optical properties of lead halide perovskites. Physical Review B. American Physical Society. https://doi.org/10.1103/physrevb.107.125201","ista":"Volosniev A, Shiva Kumar A, Lorenc D, Ashourishokri Y, Zhumekenov A, Bakr OM, Lemeshko M, Alpichshev Z. 2023. Effective model for studying optical properties of lead halide perovskites. Physical Review B. 107(12), 125201.","ama":"Volosniev A, Shiva Kumar A, Lorenc D, et al. Effective model for studying optical properties of lead halide perovskites. Physical Review B. 2023;107(12). doi:10.1103/physrevb.107.125201","chicago":"Volosniev, Artem, Abhishek Shiva Kumar, Dusan Lorenc, Younes Ashourishokri, Ayan Zhumekenov, Osman M. Bakr, Mikhail Lemeshko, and Zhanybek Alpichshev. “Effective Model for Studying Optical Properties of Lead Halide Perovskites.” Physical Review B. American Physical Society, 2023. https://doi.org/10.1103/physrevb.107.125201.","short":"A. Volosniev, A. Shiva Kumar, D. Lorenc, Y. Ashourishokri, A. Zhumekenov, O.M. Bakr, M. Lemeshko, Z. Alpichshev, Physical Review B 107 (2023).","mla":"Volosniev, Artem, et al. “Effective Model for Studying Optical Properties of Lead Halide Perovskites.” Physical Review B, vol. 107, no. 12, 125201, American Physical Society, 2023, doi:10.1103/physrevb.107.125201."},"article_type":"original","abstract":[{"text":"We use general symmetry-based arguments to construct an effective model suitable for studying optical properties of lead halide perovskites. To build the model, we identify an atomic-level interaction between electromagnetic fields and the spin degree of freedom that should be added to a minimally coupled k⋅p Hamiltonian. As a first application, we study two basic optical characteristics of the material: the Verdet constant and the refractive index. Beyond these linear characteristics of the material, the model is suitable for calculating nonlinear effects such as the third-order optical susceptibility. Analysis of this quantity shows that the geometrical properties of the spin-electric term imply isotropic optical response of the system, and that optical anisotropy of lead halide perovskites is a manifestation of hopping of charge carriers. To illustrate this, we discuss third-harmonic generation.","lang":"eng"}],"issue":"12","type":"journal_article","oa_version":"Preprint","_id":"12724","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","title":"Effective model for studying optical properties of lead halide perovskites","intvolume":" 107"},{"quality_controlled":"1","isi":1,"project":[{"name":"Angulon: physics and applications of a new quasiparticle","call_identifier":"H2020","grant_number":"801770","_id":"2688CF98-B435-11E9-9278-68D0E5697425"}],"oa":1,"main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2206.07067","open_access":"1"}],"external_id":{"arxiv":["2206.07067"],"isi":["000957635500003"]},"language":[{"iso":"eng"}],"doi":"10.1103/PhysRevLett.130.103202","month":"03","publication_identifier":{"eissn":["1079-7114"],"issn":["0031-9007"]},"publication_status":"published","publisher":"American Physical Society","department":[{"_id":"MiLe"}],"acknowledgement":"M. L. acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON).","year":"2023","date_updated":"2023-08-01T14:02:06Z","date_created":"2023-04-02T22:01:10Z","volume":130,"author":[{"full_name":"Karle, Volker","id":"D7C012AE-D7ED-11E9-95E8-1EC5E5697425","last_name":"Karle","first_name":"Volker"},{"id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-9666-3543","first_name":"Areg","last_name":"Ghazaryan","full_name":"Ghazaryan, Areg"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","first_name":"Mikhail","last_name":"Lemeshko","full_name":"Lemeshko, Mikhail"}],"related_material":{"link":[{"relation":"press_release","description":"News on the ISTA website","url":"https://ista.ac.at/en/news/topology-of-rotating-molecules/"}]},"article_number":"103202","ec_funded":1,"article_type":"original","publication":"Physical Review Letters","citation":{"chicago":"Karle, Volker, Areg Ghazaryan, and Mikhail Lemeshko. “Topological Charges of Periodically Kicked Molecules.” Physical Review Letters. American Physical Society, 2023. https://doi.org/10.1103/PhysRevLett.130.103202.","short":"V. Karle, A. Ghazaryan, M. Lemeshko, Physical Review Letters 130 (2023).","mla":"Karle, Volker, et al. “Topological Charges of Periodically Kicked Molecules.” Physical Review Letters, vol. 130, no. 10, 103202, American Physical Society, 2023, doi:10.1103/PhysRevLett.130.103202.","ieee":"V. Karle, A. Ghazaryan, and M. Lemeshko, “Topological charges of periodically kicked molecules,” Physical Review Letters, vol. 130, no. 10. American Physical Society, 2023.","apa":"Karle, V., Ghazaryan, A., & Lemeshko, M. (2023). Topological charges of periodically kicked molecules. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.130.103202","ista":"Karle V, Ghazaryan A, Lemeshko M. 2023. Topological charges of periodically kicked molecules. Physical Review Letters. 130(10), 103202.","ama":"Karle V, Ghazaryan A, Lemeshko M. Topological charges of periodically kicked molecules. Physical Review Letters. 2023;130(10). doi:10.1103/PhysRevLett.130.103202"},"date_published":"2023-03-10T00:00:00Z","scopus_import":"1","day":"10","article_processing_charge":"No","title":"Topological charges of periodically kicked molecules","status":"public","intvolume":" 130","_id":"12788","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","oa_version":"Preprint","type":"journal_article","abstract":[{"lang":"eng","text":"We show that the simplest of existing molecules—closed-shell diatomics not interacting with one another—host topological charges when driven by periodic far-off-resonant laser pulses. A periodically kicked molecular rotor can be mapped onto a “crystalline” lattice in angular momentum space. This allows us to define quasimomenta and the band structure in the Floquet representation, by analogy with the Bloch waves of solid-state physics. Applying laser pulses spaced by 1/3 of the molecular rotational period creates a lattice with three atoms per unit cell with staggered hopping. Within the synthetic dimension of the laser strength, we discover Dirac cones with topological charges. These Dirac cones, topologically protected by reflection and time-reversal symmetry, are reminiscent of (although not equivalent to) that seen in graphene. They—and the corresponding edge states—are broadly tunable by adjusting the laser strength and can be observed in present-day experiments by measuring molecular alignment and populations of rotational levels. This paves the way to study controllable topological physics in gas-phase experiments with small molecules as well as to classify dynamical molecular states by their topological invariants."}],"issue":"10"},{"department":[{"_id":"MaSe"},{"_id":"MiLe"}],"publisher":"American Physical Society","publication_status":"published","acknowledgement":"E.B. and T.H. were supported by the European Research Council (ERC) under grant HQMAT (Grant Agreement No. 817799), by the Israel-USA Binational Science Foundation (BSF), and by a Research grant from Irving and Cherna Moskowitz.","year":"2023","volume":107,"date_updated":"2023-08-01T13:59:29Z","date_created":"2023-04-02T22:01:10Z","related_material":{"link":[{"url":"https://ista.ac.at/en/news/reaching-superconductivity-layer-by-layer/","relation":"press_release","description":"News on the ISTA website"}]},"author":[{"first_name":"Areg","last_name":"Ghazaryan","id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-9666-3543","full_name":"Ghazaryan, Areg"},{"last_name":"Holder","first_name":"Tobias","full_name":"Holder, Tobias"},{"full_name":"Berg, Erez","first_name":"Erez","last_name":"Berg"},{"full_name":"Serbyn, Maksym","first_name":"Maksym","last_name":"Serbyn","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-2399-5827"}],"article_number":"104502","quality_controlled":"1","isi":1,"external_id":{"arxiv":["2211.02492"],"isi":["000945526400003"]},"main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2211.02492","open_access":"1"}],"oa":1,"language":[{"iso":"eng"}],"doi":"10.1103/PhysRevB.107.104502","publication_identifier":{"eissn":["2469-9969"],"issn":["2469-9950"]},"month":"03","intvolume":" 107","status":"public","title":"Multilayer graphenes as a platform for interaction-driven physics and topological superconductivity","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","_id":"12790","oa_version":"Preprint","type":"journal_article","issue":"10","abstract":[{"lang":"eng","text":"Motivated by the recent discoveries of superconductivity in bilayer and trilayer graphene, we theoretically investigate superconductivity and other interaction-driven phases in multilayer graphene stacks. To this end, we study the density of states of multilayer graphene with up to four layers at the single-particle band structure level in the presence of a transverse electric field. Among the considered structures, tetralayer graphene with rhombohedral (ABCA) stacking reaches the highest density of states. We study the phases that can arise in ABCA graphene by tuning the carrier density and transverse electric field. For a broad region of the tuning parameters, the presence of strong Coulomb repulsion leads to a spontaneous spin and valley symmetry breaking via Stoner transitions. Using a model that incorporates the spontaneous spin and valley polarization, we explore the Kohn-Luttinger mechanism for superconductivity driven by repulsive Coulomb interactions. We find that the strongest superconducting instability is in the p-wave channel, and occurs in proximity to the onset of Stoner transitions. Interestingly, we find a range of densities and transverse electric fields where superconductivity develops out of a strongly corrugated, singly connected Fermi surface in each valley, leading to a topologically nontrivial chiral p+ip superconducting state with an even number of copropagating chiral Majorana edge modes. Our work establishes ABCA-stacked tetralayer graphene as a promising platform for observing strongly correlated physics and topological superconductivity."}],"article_type":"original","citation":{"chicago":"Ghazaryan, Areg, Tobias Holder, Erez Berg, and Maksym Serbyn. “Multilayer Graphenes as a Platform for Interaction-Driven Physics and Topological Superconductivity.” Physical Review B. American Physical Society, 2023. https://doi.org/10.1103/PhysRevB.107.104502.","short":"A. Ghazaryan, T. Holder, E. Berg, M. Serbyn, Physical Review B 107 (2023).","mla":"Ghazaryan, Areg, et al. “Multilayer Graphenes as a Platform for Interaction-Driven Physics and Topological Superconductivity.” Physical Review B, vol. 107, no. 10, 104502, American Physical Society, 2023, doi:10.1103/PhysRevB.107.104502.","ieee":"A. Ghazaryan, T. Holder, E. Berg, and M. Serbyn, “Multilayer graphenes as a platform for interaction-driven physics and topological superconductivity,” Physical Review B, vol. 107, no. 10. American Physical Society, 2023.","apa":"Ghazaryan, A., Holder, T., Berg, E., & Serbyn, M. (2023). Multilayer graphenes as a platform for interaction-driven physics and topological superconductivity. Physical Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.107.104502","ista":"Ghazaryan A, Holder T, Berg E, Serbyn M. 2023. Multilayer graphenes as a platform for interaction-driven physics and topological superconductivity. Physical Review B. 107(10), 104502.","ama":"Ghazaryan A, Holder T, Berg E, Serbyn M. Multilayer graphenes as a platform for interaction-driven physics and topological superconductivity. Physical Review B. 2023;107(10). doi:10.1103/PhysRevB.107.104502"},"publication":"Physical Review B","date_published":"2023-03-01T00:00:00Z","scopus_import":"1","article_processing_charge":"No","day":"01"}]