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Critical amplitude ratios of the Baxter-Wu model

Lev N. Shchur, Wolfhard Janke

arXiv:1007.1838v1 [cond-mat.stat-mech]

Nuclear Physics B Volume 840, Issue 3, 1 December 2010, Pages 491-512

doi:10.1016/j.nuclphysb.2010.07.016

Abstract:

A Monte Carlo simulation study of the critical and off-critical behavior of the Baxter-Wu model, which belongs to the universality class of the 4-state Potts model, was performed. We estimate the critical temperature window using known analytical results for the specific heat and magnetization. This helps us to extract reliable values of universal combinations of critical amplitudes with reasonable accuracy. Comparisons with approximate analytical predictions and other numerical results are discussed.

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