PROPOSAL OF A RENORMALIZATION-GROUP TRANSFORMATION FOR LATTICE FIELD-THEORIES

被引：6

作者：

FERNANDEZ, LA

SUDUPE, AM

RUIZLORENZO, JJ

TARANCON, A

机构：

[1] UNIV ZARAGOZA,DEPT FIS TEOR,E-50009 ZARAGOZA,SPAIN

[2] UNIV ROME 1,DIPARTIMENTO FIS,I-00185 ROME,ITALY

来源：

PHYSICAL REVIEW D | 1994年 / 50卷 / 09期

关键词：

D O I：

10.1103/PhysRevD.50.5935

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We propose a new real space renormalization group transformation useful for Monte Carlo calculations in theories with global or local symmetries. From relaxation arguments we define the block-spin transformation with two tunable free parameters, adapted to the system's action. Varying them it is possible to place the fixed point Very close to the simulation point. We show how the method works in a simple model with global symmetry: the three-dimensional XY model.

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页码：5935 / 5943

页数：9

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