期刊
JOURNAL OF MATHEMATICAL PHYSICS
卷 57, 期 7, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4959238
关键词
-
资金
- Knut and Alice Wallenberg Foundation
We study a class of quantum spin systems in the mean-field setting of the complete graph. For spin S = 1/2, the model is the Heisenberg ferromagnet, and for general spin S is an element of 1/2N, it has a probabilistic representation as a cycle-weighted interchange process. We determine the free energy and the critical temperature (recovering results by Toth and by Penrose when S = 1/2). The critical temperature is shown to coincide (as a function of S) with that of the q = 2S + 1 state classical Potts model, and the phase transition is discontinuous when S >= 1. Published by AIP Publishing.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据