{"related_material":{"link":[{"relation":"press_release","description":"News on IST Homepage","url":"https://ist.ac.at/en/news/description-of-rotating-molecules-made-easy/"}]},"status":"public","title":"Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems","quality_controlled":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_created":"2019-04-17T10:53:38Z","oa":1,"oa_version":"Preprint","scopus_import":"1","publisher":"American Physical Society","issue":"16","date_published":"2018-10-16T00:00:00Z","publication_status":"published","abstract":[{"lang":"eng","text":"We introduce a diagrammatic Monte Carlo approach to angular momentum properties of quantum many-particle systems possessing a macroscopic number of degrees of freedom. The treatment is based on a diagrammatic expansion that merges the usual Feynman diagrams with the angular momentum diagrams known from atomic and nuclear structure theory, thereby incorporating the non-Abelian algebra inherent to quantum rotations. Our approach is applicable at arbitrary coupling, is free of systematic errors and of finite-size effects, and naturally provides access to the impurity Green function. We exemplify the technique by obtaining an all-coupling solution of the angulon model; however, the method is quite general and can be applied to a broad variety of systems in which particles exchange quantum angular momentum with their many-body environment."}],"main_file_link":[{"url":"https://arxiv.org/abs/1803.07990","open_access":"1"}],"department":[{"_id":"MiLe"}],"day":"16","type":"journal_article","date_updated":"2024-02-28T13:15:09Z","article_processing_charge":"No","month":"10","isi":1,"project":[{"call_identifier":"FWF","name":"Quantum rotations in the presence of a many-body environment","_id":"26031614-B435-11E9-9278-68D0E5697425","grant_number":"P29902"}],"volume":121,"intvolume":"       121","year":"2018","citation":{"mla":"Bighin, Giacomo, et al. “Diagrammatic Monte Carlo Approach to Angular Momentum in Quantum Many-Particle Systems.” <i>Physical Review Letters</i>, vol. 121, no. 16, 165301, American Physical Society, 2018, doi:<a href=\"https://doi.org/10.1103/physrevlett.121.165301\">10.1103/physrevlett.121.165301</a>.","ieee":"G. Bighin, T. Tscherbul, and M. Lemeshko, “Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems,” <i>Physical Review Letters</i>, vol. 121, no. 16. American Physical Society, 2018.","ama":"Bighin G, Tscherbul T, Lemeshko M. Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems. <i>Physical Review Letters</i>. 2018;121(16). doi:<a href=\"https://doi.org/10.1103/physrevlett.121.165301\">10.1103/physrevlett.121.165301</a>","ista":"Bighin G, Tscherbul T, Lemeshko M. 2018. Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems. Physical Review Letters. 121(16), 165301.","apa":"Bighin, G., Tscherbul, T., &#38; Lemeshko, M. (2018). Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevlett.121.165301\">https://doi.org/10.1103/physrevlett.121.165301</a>","chicago":"Bighin, Giacomo, Timur Tscherbul, and Mikhail Lemeshko. “Diagrammatic Monte Carlo Approach to Angular Momentum in Quantum Many-Particle Systems.” <i>Physical Review Letters</i>. American Physical Society, 2018. <a href=\"https://doi.org/10.1103/physrevlett.121.165301\">https://doi.org/10.1103/physrevlett.121.165301</a>.","short":"G. Bighin, T. Tscherbul, M. Lemeshko, Physical Review Letters 121 (2018)."},"language":[{"iso":"eng"}],"_id":"6339","article_number":"165301","doi":"10.1103/physrevlett.121.165301","author":[{"last_name":"Bighin","first_name":"Giacomo","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","full_name":"Bighin, Giacomo","orcid":"0000-0001-8823-9777"},{"full_name":"Tscherbul, Timur","first_name":"Timur","last_name":"Tscherbul"},{"orcid":"0000-0002-6990-7802","first_name":"Mikhail","last_name":"Lemeshko","full_name":"Lemeshko, Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87"}],"publication":"Physical Review Letters","external_id":{"isi":["000447468400008"],"arxiv":["1803.07990"]}}