{ "id": "1602.03257", "version": "v1", "published": "2016-02-10T03:55:03.000Z", "updated": "2016-02-10T03:55:03.000Z", "title": "Asymptotics of mean-field $O(N)$ models", "authors": [ "Kay Kirkpatrick", "Tayyab Nawaz" ], "categories": [ "math-ph", "math.MP" ], "abstract": "We study mean-field classical $N$-vector models, for even integers $N\\ge 2$. We use the theory of large deviations and Stein's method to study the total spin and its typical behavior, specifically obtaining a non-normal limit theorem at the critical temperature and central limit theorems away from the critical temperatures. Important special cases of these models are the XY ($N=2$) model of superconductors and Toy ($N=4$) model of the Higgs sector in particle physics.", "revisions": [ { "version": "v1", "updated": "2016-02-10T03:55:03.000Z" } ], "analyses": { "keywords": [ "asymptotics", "central limit theorems away", "important special cases", "critical temperature", "non-normal limit theorem" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2016arXiv160203257K" } } }