English

Coexistence of ordered and disordered phases in Potts models in the continuum

Mathematical Physics 2009-11-13 v1 math.MP Probability

Abstract

This is the second of two papers on a continuum version of the Potts model, where particles are points in Rd\mathbb R^d, d2d\ge 2, with a spin which may take S3S\ge 3 possible values. Particles with different spins repel each other via a Kac pair potential of range \ga1\ga^{-1}, \ga>0\ga>0. In this paper we prove phase transition, namely we prove that if the scaling parameter of the Kac potential is suitably small, given any temperature there is a value of the chemical potential such that at the given temperature and chemical potential there exist S+1S+1 mutually distinct DLR measures.

Keywords

Cite

@article{arxiv.0807.5080,
  title  = {Coexistence of ordered and disordered phases in Potts models in the continuum},
  author = {Anna De Masi and Immacolata Merola and Errico Presutti and Yvon Vignaud},
  journal= {arXiv preprint arXiv:0807.5080},
  year   = {2009}
}

Comments

57 pages, 1 figure

R2 v1 2026-06-21T11:06:22.069Z