VARIATIONAL PRINCIPLE FOR THE DISTRIBUTION FUNCTION OF THE EFFECTIVE FIELD FOR THE RANDOM ISING-MODEL IN THE BETHE APPROXIMATION

被引：64

作者：

MORITA, T

机构：

[1] Department of Applied Science, Faculty of Engineering, Tohoku University, Sendai

来源：

PHYSICA A | 1979年 / 98卷 / 03期

关键词：

D O I：

10.1016/0378-4371(79)90154-7

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the random Ising model in the pair approximation of the cluster variation method. We show that the distribution function of the effective field is determined either by a reducibility condition of the distribution function of two sites to that of one site or by a stationarity condition of the averaged free energy. © 1979.

引用

页码：566 / 572

页数：7

共 13 条

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