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Double Potts chain and exact results for some two-dimensional models

M. A. Yurishchev
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Abstract

A closed-form exact analytical solution for the q-state Potts model on a ladder 2 x oo with arbitrary two-, three-, and four-site interactions in a unit cell is presented. Using the obtained solution it is shown that the finite-size internal energy equation yields an accurate value of the critical temperature for the triangular Potts lattice with three-site interactions in alternate triangular faces. It is argued that the above equation is exact at least for self-dual models on isotropic lattices.

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M. A. Yurishchev. 2001-11-21. Double Potts chain and exact results for some two-dimensional models. https://doi.org/10.1134/1.1427183

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