Dynamic exponent of the two-dimensional Ising model and Monte Carlo computation of the subdominant eigenvalue of the stochastic matrix.

Dynamic exponent of the two-dimensional Ising model and Monte Carlo computation of the subdominant eigenvalue of the stochastic matrix.
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二维伊辛模型的动态指数和随机矩阵次主特征值的蒙特卡罗计算。

DOI:
10.1103/physrevlett.76.4548
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发表时间:
1996
影响因子:
8.6
通讯作者:
H. Blote
H. Blote
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
M. P. Nightingale;H. Blote

文献摘要

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我们引入了一种新颖的方差减少蒙特卡罗算法,用于准确确定相关时间。我们将此方法应用于尺寸高达 15 3 15 的二维 Ising 系统,使用单自旋翻转动力学、随机位置选择和根据热浴方法的跃迁概率。根据这些相关时间的有限尺寸缩放分析,动态临界指数 z 确定为 z › 2.1665s12d。 [S0031-9007(96)00379-1]
We introduce a novel variance-reducing Monte Carlo algorithm for accurate determination of correlation times. We apply this method to two-dimensional Ising systems with sizes up to 15 3 15, using single-spin flip dynamics, random site selection, and transition probabilities according to the heat-bath method. From a finite-size scaling analysis of these correlation times, the dynamic critical exponent z is determined as z › 2.1665s12d. [S0031-9007(96)00379-1]