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arXiv · 1109.0821

Evaporation/condensation transition of the two dimensional Potts model in microcanonical ensemble

Tomoaki Nogawa·Nobuyasu Ito·Hiroshi Watanabe
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Abstract

Evaporation/condensation transition of the Potts model on square lattice is numerically investigated by the Wang-Landau sampling method. Intrinsically system size dependent discrete transition between supersaturation state and phase-separation state is observed in the microcanonical ensemble by changing constrained internal energy. We calculate the microcanonical temperature, as a derivative of microcanonical entropy, and condensation ratio, and perform a finite size scaling of them to indicate clear tendency of numerical data to converge to the infinite size limit predicted by phenomenological theory for the isotherm lattice gas model.

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Tomoaki Nogawa, Nobuyasu Ito, Hiroshi Watanabe. 2011-11-08. Evaporation/condensation transition of the two dimensional Potts model in microcanonical ensemble. https://doi.org/10.1103/physreve.84.061107

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