Partial order and finite-temperature phase transitions in Potts models on irregular lattices

Autor:	Chen, Q. N., Qin, M. P., Chen, J., Wei, Z. C., Zhao, H. H., Normand, B., Xiang, T.
Rok vydání:	2011
Předmět:	Condensed Matter - Strongly Correlated Electrons Condensed Matter - Statistical Mechanics
Zdroj:	Phys. Rev. Lett 107, 165701(2011)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.107.165701
Popis:	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. Comment: 4 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1105.5030 Zobrazit plný text záznamu View this record from Arxiv