Finite Size Scaling and "perfect" actions:: the three dimensional Ising model

被引：36
作者：
Ballesteros, HG [1 ]
Fernández, LA [1 ]
Martin-Mayor, V [1 ]
Sudupe, AM [1 ]
机构：
[1] Univ Complutense Madrid, Fac Ciencias Fis, Dept Fis Teor 1, E-28040 Madrid, Spain
来源：
PHYSICS LETTERS B | 1998年 / 441卷 / 1-4期
关键词：
lattice; Monte Carlo; perfect actions; critical exponents; finite-size scaling;
D O I：
10.1016/S0370-2693(98)01100-9
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Using Finite-Size Scaling techniques, we numerically show that the first irrelevant operator of the lattice lambda phi(4) theory in three dimensions is (within errors) completely decoupled at lambda = 1.0. This interesting result also holds in the Thermodynamical Limit, where the renormalized coupling constant shows an extraordinary reduction of the scaling-corrections when compared with the Ising model. It is argued that Finite-Size Scaling analysis can be a competitive method for finding improved actions. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：330 / 338
页数：9
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