Phase transitions in self-dual generalizations of the Baxter–Wu model

Autor:	Wenan Guo, Henk W. J. Blöte, J.R. Heringa, Youjin Deng, Bernard Nienhuis
Přispěvatelé:	Quantum Condensed Matter Theory (ITFA, IoP, FNWI)
Rok vydání:	2010
Předmět:	Physics Nuclear and High Energy Physics Phase transition Statistical Mechanics (cond-mat.stat-mech) Generalization Numerical analysis Monte Carlo method Spin model FOS: Physical sciences State (functional analysis) Condensed Matter - Statistical Mechanics Mathematical physics Dual (category theory)
Zdroj:	Nuclear Physics B, 827(3), 406-425. Elsevier
ISSN:	0550-3213
Popis:	We study two types of generalized Baxter-Wu models, by means of transfer-matrix and Monte Carlo techniques. The first generalization allows for different couplings in the up- and down triangles, and the second generalization is to a $q$-state spin model with three-spin interactions. Both generalizations lead to self-dual models, so that the probable locations of the phase transitions follow. Our numerical analysis confirms that phase transitions occur at the self-dual points. For both generalizations of the Baxter-Wu model, the phase transitions appear to be discontinuous. 29 pages, 13 figures
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::603a54d6f8710c945a59f02d2e56d4d1 https://doi.org/10.1016/j.nuclphysb.2009.10.014 Zobrazit plný text záznamu Full Text from ScienceDirect