PERTURBATION STUDY OF THE LINEAR RENORMALIZATION-GROUP FOR SPIN-GLASSES

被引：9

作者：

DEALMEIDA, JRL

机构：

[1] Dept. de Fisica, Univ. Federal de Pernambuco, Recife

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1993年 / 26卷 / 02期

关键词：

D O I：

10.1088/0305-4470/26/2/008

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The usual linear renormalization group (LRG) used in pin glasses is studied when a small nonlinear term is introduced in the relationship between block-spin variables. Contrary to what happens in uniform systems, this perturbation gives a singular contribution to the fixed-point Hamiltonian within the approximations used. It is then claimed that the LRG is inappropriate for spin glass systems.

引用

页码：193 / 200

页数：8

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