Statistical Average of Spin Operators for Calculation of Three-Component Magnetization  

作　　者：WANGHuai-Yu ZHOUBin CHENNan-Xian 

机构地区：[1]DepartmentofPhysics,TsinghuaUniversity,Beijing100084,China [2]InterdisciplinaryCenterofTheoreticalStudies,theChineseAcademyofSciences,P.O.Box2735,Beijing100080,China

出　　处：《Communications in Theoretical Physics》2005年第4期753-758,共6页理论物理通讯（英文版）

基　　金：the State Key Project of Fundamental Research of China under

摘　　要：When one wants to calculate all the three components of magnetization of Heisenberg model under random phase approximation, at least one of the components should be the solution of an ordinary differential equation. In this paper such an equation is established. It is argued that the general expressions of magnetization for any spin quantum number S suggested before are the solution of the ordinary differential equation.

关 键 词：three-component magnetization heisenberg model many-body Green's functionmethod ordinary differential equation 

分 类 号：O413.1[理学—理论物理]