CANONICAL DEMON MONTE-CARLO RENORMALIZATION-GROUP

被引：23
|
作者：
HASENBUSCH, M [1 ]
PINN, K [1 ]
WIECZERKOWSKI, C [1 ]
机构：
[1] UNIV MUNSTER, INST THEORET PHYS 1, D-48149 MUNSTER, GERMANY
来源：
PHYSICS LETTERS B | 1994年 / 338卷 / 2-3期
关键词：
D O I：
10.1016/0370-2693(94)91383-8
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We describe a new method to compute renormalized coupling constants in a Monte Carlo renormalization group calculation. The method can be used for a general class of models, e.g., lattice spin or gauge models. The basic idea is to simulate a joint system of block spins and canonical demons. In contrast to the Microcanonical Renormalization Group invented by Creutz et al. our method does not suffer from systematical errors stemming from a simultaneous use of two different ensembles. We present numerical results for the O(3) nonlinear sigma-model.
引用
收藏
页码：308 / 312
页数：5
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