Cluster Monte Carlo algorithm for the quantum rotor model

被引：77

作者：

Alet, F ^{[1
]}

Sorensen, ES

机构：

[1] Univ Toulouse 3, Phys Quant Lab, F-31062 Toulouse, France

[2] Univ Toulouse 3, UMR 5626, F-31062 Toulouse, France

[3] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada

来源：

PHYSICAL REVIEW E | 2003年 / 67卷 / 01期

关键词：

D O I：

10.1103/PhysRevE.67.015701

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We propose a highly efficient "worm"-like cluster Monte Carlo algorithm for the quantum rotor model in the link-current representation. We explicitly prove detailed balance for the algorithm even in the presence of disorder. For the pure quantum rotor model with mu=0, the algorithm yields high- precision estimates for the critical point K-c=0.333 05(5) and the correlation length exponent nu=0.670(3). For the disordered case, mu=1/2+/-1/2, we find nu=1.15(10).

引用

页数：4

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