摘要
对多电子体系的几个问题作了讨论。第一 ,采用矩阵直积方法给出 N电子总自旋角动量的平方及其 z分量的一般公式 ;第二 ,按照群论方法对多电子体系的对称化投影算符进行了讨论 ,并用投影算符和升降算符推求出多电子的自旋态。
The formula of N-electrons’ total spin angular momentum are given. The problem of the projection operator of many electrons is discussed by the standard method of the group theory. The spin state of many electrons is deduced by using the projection operator and the raising and lowering operators.
关键词
多电子体系
自旋态
自旋角动量
置换群
投影算符
many electrons’ system
spin state
spin angular momentum
matrix method
permutation group
projection operator
