摘要
用完全初等的方法推导了量子力学角动量理论中Clebsc-Gordan系数、3j系数,所用的仅是一些初等排列组合和量子力学基本知识;同时,在实际问题计算中,只需直接应用简单的推导方法本身(而不是繁复的一般解析公式)就是一种极为简捷的算法.
It is shown that the seemingly very complicated formulae of Clebsch-Gordan coefficient in quantum angular momentum theory actually can be derived in such a simple way using only elementary mathematics and basic quantum mechanics. Furthermore, in practical application, this method itself instead of the unwieldy general formula provides a very fast and easy way of calculation.
出处
《大学物理》
1998年第6期14-18,共5页
College Physics
关键词
角动量耦合
直积表示
置换算符
量子力学
angular momentum coupling
direct product representation
permutation operator