Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2002-04-03
J. Phys. A: Math. Gen., Vol.35, 7549 (2002)
Physics
Condensed Matter
Statistical Mechanics
4 pages, 1 figure, LaTeX2e
Scientific paper
10.1088/0305-4470/35/34/401
We comment on the article by Fujimoto (1997 J. Phys. A: Math. Gen., Vol. 30, 3779), where the exact equilibrium crystal shape (ECS) in the critical Q-state Potts model on the square lattice was calculated, and its equivalence with ECS in the Ising model was established. We confirm these results, giving their alternative derivation applying the transformation properties of the one-particle dispersion relation in the six-vertex model. It is shown, that this dispersion relation is identical with that in the Ising model on the square lattice.
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