Logarithmic corrections and universal amplitude ratios in the 4-state Potts model

preprint2007arXivOpen access

Abstract

Monte Carlo and series expansion data for the energy, specific heat, magnetisation and susceptibility of the 4-state Potts model in the vicinity of the critical point are analysed. The role of logarithmic corrections is discussed. Estimates of universal ratios A_+/A_-, Γ+/ΓLΓ_+/Γ_L, ΓT/ΓLΓ_T/Γ_L and R_c^+ are given.

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