{"day":"13","publisher":"IOP Publishing Ltd.","department":[{"_id":"RoSe"}],"user_id":"4435EBFC-F248-11E8-B48F-1D18A9856A87","volume":108,"abstract":[{"text":"Spin-wave theory is a key ingredient in our comprehension of quantum spin systems, and is used successfully for understanding a wide range of magnetic phenomena, including magnon condensation and stability of patterns in dipolar systems. Nevertheless, several decades of research failed to establish the validity of spin-wave theory rigorously, even for the simplest models of quantum spins. A rigorous justification of the method for the three-dimensional quantum Heisenberg ferromagnet at low temperatures is presented here. We derive sharp bounds on its free energy by combining a bosonic formulation of the model introduced by Holstein and Primakoff with probabilistic estimates and operator inequalities.","lang":"eng"}],"date_created":"2018-12-11T11:55:18Z","publication_status":"published","language":[{"iso":"eng"}],"publication":"EPL","scopus_import":1,"oa":1,"_id":"2029","intvolume":"       108","date_published":"2014-10-13T00:00:00Z","citation":{"short":"M. Correggi, A. Giuliani, R. Seiringer, EPL 108 (2014).","mla":"Correggi, Michele, et al. “Validity of Spin-Wave Theory for the Quantum Heisenberg Model.” <i>EPL</i>, vol. 108, no. 2, 20003, IOP Publishing Ltd., 2014, doi:<a href=\"https://doi.org/10.1209/0295-5075/108/20003\">10.1209/0295-5075/108/20003</a>.","ieee":"M. Correggi, A. Giuliani, and R. Seiringer, “Validity of spin-wave theory for the quantum Heisenberg model,” <i>EPL</i>, vol. 108, no. 2. IOP Publishing Ltd., 2014.","ama":"Correggi M, Giuliani A, Seiringer R. Validity of spin-wave theory for the quantum Heisenberg model. <i>EPL</i>. 2014;108(2). doi:<a href=\"https://doi.org/10.1209/0295-5075/108/20003\">10.1209/0295-5075/108/20003</a>","chicago":"Correggi, Michele, Alessandro Giuliani, and Robert Seiringer. “Validity of Spin-Wave Theory for the Quantum Heisenberg Model.” <i>EPL</i>. IOP Publishing Ltd., 2014. <a href=\"https://doi.org/10.1209/0295-5075/108/20003\">https://doi.org/10.1209/0295-5075/108/20003</a>.","ista":"Correggi M, Giuliani A, Seiringer R. 2014. Validity of spin-wave theory for the quantum Heisenberg model. EPL. 108(2), 20003.","apa":"Correggi, M., Giuliani, A., &#38; Seiringer, R. (2014). Validity of spin-wave theory for the quantum Heisenberg model. <i>EPL</i>. IOP Publishing Ltd. <a href=\"https://doi.org/10.1209/0295-5075/108/20003\">https://doi.org/10.1209/0295-5075/108/20003</a>"},"quality_controlled":"1","title":"Validity of spin-wave theory for the quantum Heisenberg model","main_file_link":[{"url":"http://arxiv.org/abs/1404.4717","open_access":"1"}],"month":"10","year":"2014","oa_version":"Submitted Version","publist_id":"5044","date_updated":"2021-01-12T06:54:50Z","status":"public","author":[{"full_name":"Correggi, Michele","first_name":"Michele","last_name":"Correggi"},{"full_name":"Giuliani, Alessandro","last_name":"Giuliani","first_name":"Alessandro"},{"first_name":"Robert","orcid":"0000-0002-6781-0521","last_name":"Seiringer","full_name":"Seiringer, Robert","id":"4AFD0470-F248-11E8-B48F-1D18A9856A87"}],"issue":"2","acknowledgement":"239694; ERC; European Research Council","article_number":"20003","type":"journal_article","doi":"10.1209/0295-5075/108/20003"}