A universal amplitude ratio for the q<4 Potts model from a solvable lattice model
Abstract
The universal amplitude ratio R for the (q≤slant 4)-state Potts model in two dimensions is determined by using results for the dilute A model in regime 1. The nature of the relationship between the Potts model and the dilute A model, both related to φ2,1 perturbed conformal field theory, is discussed.
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