Partial Order and Finite-Temperature Phase Transitions in Potts Models on Irregular Lattices

被引：32

作者：

Chen, Q. N. ^{[1
]}

Qin, M. P. ^{[2
]}

Chen, J. ^{[2
]}

Wei, Z. C. ^{[2
]}

Zhao, H. H. ^{[2
]}

Normand, B. ^{[3
]}

Xiang, T. ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China

[3] Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 16期

关键词：

ANTIFERROMAGNET;

D O I：

10.1103/PhysRevLett.107.165701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We evaluate the thermodynamic properties of the 4-state antiferromagnetic Potts model on the Union-Jack lattice using tensor-based numerical methods. We present strong evidence for a previously unknown, "entropy-driven," finite-temperature phase transition to a partially ordered state. From the thermodynamics of Potts models on the diced and centered diced lattices, we propose that finite-temperature transitions and partially ordered states are ubiquitous on irregular lattices.

引用

页数：5

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