Numerical simulations of the random phase sine-Gordon model and renormalization group predictions

被引：1
|
作者：
Lancaster, D. J.
Ruiz-Lorenzo, J. J.
机构：
[1] Univ Extremadura, Fac Ciencias, Dept Fis, E-06071 Badajoz, Spain
[2] BIFI, Zaragoza, Spain
来源：
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT | 2007年
关键词：
correlation functions (theory); renormalization group; disordered systems (theory);
D O I：
10.1088/1742-5468/2007/01/P01003
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Numerical simulations of the random phase sine-Gordon model suffer from strong finite size effects preventing the non-Gaussian log(2) r component of the spatial correlator from following the universal infinite volume prediction. We show that a finite size prediction based on perturbative renormalization group (RG) arguments agrees well with new high precision simulations for small coupling and close to the critical temperature.
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页数：18
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