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arXiv · hep-lat/9610032

Monte Carlo study of very weak first-order transitions in the three-dimensional Ashkin-Teller model

Peter Arnold·Yan Zhang
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Abstract

We propose numerical simulations of the Ashkin-Teller model as a foil for theoretical techniques for studying very weakly first-order phase transitions in three dimensions. The Ashkin-Teller model is a simple two-spin model whose parameters can be adjusted so that it has an arbitrarily weakly first-order phase transition. In this limit, there are quantities characterizing the first-order transition which are universal: we measure the relative discontinuity of the specific heat, the correlation length, and the susceptibility across the transition by Monte Carlo simulation.

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Peter Arnold, Yan Zhang. 1997-07-10. Monte Carlo study of very weak first-order transitions in the three-dimensional Ashkin-Teller model. https://doi.org/10.1016/s0550-3213(97)00405-7

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