{"year":"2024","abstract":[{"text":"We study a linear rotor in a bosonic bath within the angulon formalism. Our focus is on systems where isotropic or anisotropic impurity-boson interactions support a shallow bound state. To study the fate of the angulon in the vicinity of bound-state formation, we formulate a beyond-linear-coupling angulon Hamiltonian. First, we use it to study attractive, spherically symmetric impurity-boson interactions for which the linear rotor can be mapped onto a static impurity. The well-known polaron formalism provides an adequate description in this limit. Second, we consider anisotropic potentials, and show that the presence of a shallow bound state with pronounced anisotropic character leads to a many-body instability that washes out the angulon dynamics.","lang":"eng"}],"language":[{"iso":"eng"}],"day":"01","author":[{"full_name":"Dome, Tibor","id":"7e3293e2-b9dc-11ee-97a9-cd73400f6994","first_name":"Tibor","orcid":"0000-0003-2586-3702","last_name":"Dome"},{"last_name":"Volosniev","orcid":"0000-0003-0393-5525","first_name":"Artem","id":"37D278BC-F248-11E8-B48F-1D18A9856A87","full_name":"Volosniev, Artem"},{"first_name":"Areg","last_name":"Ghazaryan","orcid":"0000-0001-9666-3543","full_name":"Ghazaryan, Areg","id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87"},{"id":"3C325E5E-F248-11E8-B48F-1D18A9856A87","full_name":"Safari, Laleh","last_name":"Safari","first_name":"Laleh"},{"full_name":"Schmidt, Richard","last_name":"Schmidt","first_name":"Richard"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","full_name":"Lemeshko, Mikhail","orcid":"0000-0002-6990-7802","last_name":"Lemeshko","first_name":"Mikhail"}],"publication_identifier":{"eissn":["2469-9969"],"issn":["2469-9950"]},"article_processing_charge":"No","citation":{"mla":"Dome, Tibor, et al. “Linear Rotor in an Ideal Bose Gas near the Threshold for Binding.” <i>Physical Review B</i>, vol. 109, no. 1, 014102, American Physical Society, 2024, doi:<a href=\"https://doi.org/10.1103/PhysRevB.109.014102\">10.1103/PhysRevB.109.014102</a>.","ista":"Dome T, Volosniev A, Ghazaryan A, Safari L, Schmidt R, Lemeshko M. 2024. Linear rotor in an ideal Bose gas near the threshold for binding. Physical Review B. 109(1), 014102.","ieee":"T. Dome, A. Volosniev, A. Ghazaryan, L. Safari, R. Schmidt, and M. Lemeshko, “Linear rotor in an ideal Bose gas near the threshold for binding,” <i>Physical Review B</i>, vol. 109, no. 1. American Physical Society, 2024.","short":"T. Dome, A. Volosniev, A. Ghazaryan, L. Safari, R. Schmidt, M. Lemeshko, Physical Review B 109 (2024).","apa":"Dome, T., Volosniev, A., Ghazaryan, A., Safari, L., Schmidt, R., &#38; Lemeshko, M. (2024). Linear rotor in an ideal Bose gas near the threshold for binding. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevB.109.014102\">https://doi.org/10.1103/PhysRevB.109.014102</a>","ama":"Dome T, Volosniev A, Ghazaryan A, Safari L, Schmidt R, Lemeshko M. Linear rotor in an ideal Bose gas near the threshold for binding. <i>Physical Review B</i>. 2024;109(1). doi:<a href=\"https://doi.org/10.1103/PhysRevB.109.014102\">10.1103/PhysRevB.109.014102</a>","chicago":"Dome, Tibor, Artem Volosniev, Areg Ghazaryan, Laleh Safari, Richard Schmidt, and Mikhail Lemeshko. “Linear Rotor in an Ideal Bose Gas near the Threshold for Binding.” <i>Physical Review B</i>. American Physical Society, 2024. <a href=\"https://doi.org/10.1103/PhysRevB.109.014102\">https://doi.org/10.1103/PhysRevB.109.014102</a>."},"title":"Linear rotor in an ideal Bose gas near the threshold for binding","intvolume":"       109","article_number":"014102","quality_controlled":"1","date_published":"2024-01-01T00:00:00Z","volume":109,"scopus_import":"1","publication_status":"published","date_created":"2024-01-21T23:00:57Z","month":"01","publisher":"American Physical Society","publication":"Physical Review B","issue":"1","acknowledgement":"We would like to thank G. Bighin, I. Cherepanov, E. Paerschke, and E. Yakaboylu for insightful discussions on a wide range of topics. This work has been supported by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). A.G. and A.G.V. acknowledge support from the European Union’s Horizon 2020 research and innovation\r\nprogram under the Marie Skłodowska-Curie Grant Agreement No. 754411. Numerical calculations were performed on the Euler cluster managed by the HPC team at ETH Zurich.\r\nR.S. acknowledges support by the Deutsche Forschungsgemeinschaft under Germany’s Excellence Strategy Grant No. EXC 2181/1-390900948 (the Heidelberg STRUCTURES Excellence Cluster). T.D. acknowledges support from the Isaac Newton Studentship and the Science and Technology Facilities Council under Grant No. ST/V50659X/1.","ec_funded":1,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2024-01-23T10:51:09Z","type":"journal_article","oa_version":"None","doi":"10.1103/PhysRevB.109.014102","department":[{"_id":"MiLe"}],"project":[{"call_identifier":"H2020","grant_number":"801770","name":"Angulon: physics and applications of a new quasiparticle","_id":"2688CF98-B435-11E9-9278-68D0E5697425"},{"call_identifier":"H2020","grant_number":"754411","_id":"260C2330-B435-11E9-9278-68D0E5697425","name":"ISTplus - Postdoctoral Fellowships"}],"article_type":"original","status":"public","_id":"14845"}