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三维Ising模型的Green函数方法处理
引用本文:滕保华.三维Ising模型的Green函数方法处理[J].物理学报,1991,40(5):826-832.
作者姓名:滕保华
作者单位:成都科技大学物理系,成都,610065
摘    要:本文利用Creen函数方法,对三维Ising模型进行严格处理,得到一组可以递推的关于体系自旋系综平均值的线性方程。通过对体系自旋集团作切断近似,从而使得对体系转变温度,磁化强度等问题的求解,变成对一组代数方程的求解。本文表明,对较小的自旋集团,就可得到精度较高的结果。 关键词

关 键 词:Ising模型  格林函数  自旋集团
收稿时间:7/3/1990 12:00:00 AM

GREEN'S FUNCTION APPROACH TO 3-DIMENSIONAL ISING MODEL
Teng Bao-hua.GREEN''S FUNCTION APPROACH TO 3-DIMENSIONAL ISING MODEL[J].Acta Physica Sinica,1991,40(5):826-832.
Authors:Teng Bao-hua
Abstract:With the Green's function tequnique, we have exactly dealed with 3-dimesional lsing model, and obtained the linear equations of the ensemble average of the spin which are able TO be recurrent. Then by applying the decoupling approximation to the spin blocks, we can transform the solution of the transition temperature, magnetization and so on into the solution of algebraic equations. We have shown that for the smaller spin block we can obtain the results with higher precision.
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