论文标题

2D旋转的多态模拟 - $ 1 $ baxter-wu模型在水晶场中

Multicanonical simulations of the 2D spin-$1$ Baxter-Wu model in a crystal field

论文作者

Fytas, Nikolaos G., Vasilopoulos, Alexandros, Vatansever, Erol, Malakis, Anastasios, Weigel, Martin

论文摘要

我们使用在恒定温度$ t $下使用的多义算法的平行版,研究晶体场$δ$中二维(2D)旋转型$ 1 $ baxter-wu模型的普遍性的各个方面。该模型的$δ-T $相图的连续制度中的详细有限尺寸缩放分析表明,过渡属于$ 4 $ -STATE POTTS模型的通用类别。突出并讨论了一阶式有限尺寸效应,随着一个人接近模型的秘密点,它们变得更加明显。

We investigate aspects of universality in the two-dimensional (2D) spin-$1$ Baxter-Wu model in a crystal field $Δ$ using a parallel version of the multicanonical algorithm employed at constant temperature $T$. A detailed finite-size scaling analysis in the continuous regime of the $Δ-T$ phase diagram of the model indicates that the transition belongs to the universality class of the $4$-state Potts model. The presence of first-order-like finite-size effects that become more pronounced as one approaches the pentacritical point of the model is highlighted and discussed.

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