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arXiv 0811.2735math.PRcond-mat.stat-mech
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外场Curie-Weiss Potts模型的极限定理和共存概率

Limit Theorems and Coexistence Probabilities for the Curie-Weiss Potts Model with an external field

Daniel Gandolfo, Jean Ruiz, Marc Wouts

摘要:

Curie-Weiss Potts模型是著名的Potts模型的平均场版本。在该模型中,临界线$β= β_c (h)$是明确已知的,并且对应于当$q > 2$。本文描述了全域$β\geqslant 0$和$h \geqslant 0$中密度矢量的涨落,包括临界线上的条件涨落和临界线末端的非高斯涨落.计算了临界线上两个双稳态稳定状态的概率。对于完全图上的随机集群模型也推断出类似的结果。

英文摘要:

The Curie-Weiss Potts model is a mean field version of the well-known Potts model. In this model, the critical line $β= β_c (h)$ is explicitly known and corresponds to a first order transition when $q > 2$. In the present paper we describe the fluctuations of the density vector in the whole domain $β\geqslant 0$ and $h \geqslant 0$, including the conditional fluctuations on the critical line and the non-Gaussian fluctuations at the extremity of the critical line. The probabilities of each of the two thermodynamically stable states on the critical line are also computed. Similar results are inferred for the Random-Cluster model on the complete graph.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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