{"year":"2014","date_created":"2018-12-11T11:55:18Z","main_file_link":[{"url":"http://arxiv.org/abs/1404.4717","open_access":"1"}],"month":"10","acknowledgement":"239694; ERC; European Research Council","oa":1,"publication_status":"published","citation":{"short":"M. Correggi, A. Giuliani, R. Seiringer, EPL 108 (2014).","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. <a href=\"https://doi.org/10.1209/0295-5075/108/20003\">https://doi.org/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, 2014.","chicago":"Correggi, Michele, Alessandro Giuliani, and Robert Seiringer. “Validity of Spin-Wave Theory for the Quantum Heisenberg Model.” <i>EPL</i>. IOP Publishing, 2014. <a href=\"https://doi.org/10.1209/0295-5075/108/20003\">https://doi.org/10.1209/0295-5075/108/20003</a>.","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, 2014, doi:<a href=\"https://doi.org/10.1209/0295-5075/108/20003\">10.1209/0295-5075/108/20003</a>.","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>"},"intvolume":"       108","day":"13","doi":"10.1209/0295-5075/108/20003","title":"Validity of spin-wave theory for the quantum Heisenberg model","department":[{"_id":"RoSe"}],"language":[{"iso":"eng"}],"author":[{"first_name":"Michele","last_name":"Correggi","full_name":"Correggi, Michele"},{"first_name":"Alessandro","last_name":"Giuliani","full_name":"Giuliani, Alessandro"},{"id":"4AFD0470-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6781-0521","full_name":"Seiringer, Robert","last_name":"Seiringer","first_name":"Robert"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","article_number":"20003","_id":"2029","date_updated":"2024-12-11T12:44:06Z","issue":"2","type":"journal_article","article_processing_charge":"No","publist_id":"5044","date_published":"2014-10-13T00:00:00Z","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"}],"publication":"EPL","scopus_import":"1","quality_controlled":"1","publisher":"IOP Publishing","oa_version":"Submitted Version"}