{"department":[{"_id":"MiLe"}],"issue":"20","doi":"10.1103/PhysRevLett.114.203001","publication":"Physical Review Letters","type":"journal_article","status":"public","date_updated":"2021-01-12T06:53:22Z","day":"18","_id":"1813","year":"2015","language":[{"iso":"eng"}],"volume":114,"quality_controlled":"1","publication_status":"published","main_file_link":[{"url":"http://arxiv.org/abs/1502.03447","open_access":"1"}],"intvolume":"       114","publist_id":"5293","article_number":"203001","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","abstract":[{"text":"We develop a microscopic theory describing a quantum impurity whose rotational degree of freedom is coupled to a many-particle bath. We approach the problem by introducing the concept of an “angulon”—a quantum rotor dressed by a quantum field—and reveal its quasiparticle properties using a combination of variational and diagrammatic techniques. Our theory predicts renormalization of the impurity rotational structure, such as that observed in experiments with molecules in superfluid helium droplets, in terms of a rotational Lamb shift induced by the many-particle environment. Furthermore, we discover a rich many-body-induced fine structure, emerging in rotational spectra due to a redistribution of angular momentum within the quantum many-body system.","lang":"eng"}],"publisher":"American Physical Society","author":[{"full_name":"Schmidt, Richard","first_name":"Richard","last_name":"Schmidt"},{"full_name":"Lemeshko, Mikhail","orcid":"0000-0002-6990-7802","first_name":"Mikhail","last_name":"Lemeshko","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87"}],"oa":1,"month":"05","citation":{"short":"R. Schmidt, M. Lemeshko, Physical Review Letters 114 (2015).","mla":"Schmidt, Richard, and Mikhail Lemeshko. “Rotation of Quantum Impurities in the Presence of a Many-Body Environment.” <i>Physical Review Letters</i>, vol. 114, no. 20, 203001, American Physical Society, 2015, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.114.203001\">10.1103/PhysRevLett.114.203001</a>.","apa":"Schmidt, R., &#38; Lemeshko, M. (2015). Rotation of quantum impurities in the presence of a many-body environment. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.114.203001\">https://doi.org/10.1103/PhysRevLett.114.203001</a>","ista":"Schmidt R, Lemeshko M. 2015. Rotation of quantum impurities in the presence of a many-body environment. Physical Review Letters. 114(20), 203001.","ieee":"R. Schmidt and M. Lemeshko, “Rotation of quantum impurities in the presence of a many-body environment,” <i>Physical Review Letters</i>, vol. 114, no. 20. American Physical Society, 2015.","ama":"Schmidt R, Lemeshko M. Rotation of quantum impurities in the presence of a many-body environment. <i>Physical Review Letters</i>. 2015;114(20). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.114.203001\">10.1103/PhysRevLett.114.203001</a>","chicago":"Schmidt, Richard, and Mikhail Lemeshko. “Rotation of Quantum Impurities in the Presence of a Many-Body Environment.” <i>Physical Review Letters</i>. American Physical Society, 2015. <a href=\"https://doi.org/10.1103/PhysRevLett.114.203001\">https://doi.org/10.1103/PhysRevLett.114.203001</a>."},"title":"Rotation of quantum impurities in the presence of a many-body environment","oa_version":"Preprint","date_published":"2015-05-18T00:00:00Z","date_created":"2018-12-11T11:54:09Z","scopus_import":1}