大学物理 ›› 2012, Vol. 31 ›› Issue (10): 55-55.

• 著者文摘 • 上一篇    下一篇

从另一个角度看升降算符

王百川 张淳民   

  1. 西安交通大学理学院应用物理系,陕西西安710049
  • 出版日期:2012-10-25 发布日期:2012-10-20

A new understanding of ladder operators

  • Online:2012-10-25 Published:2012-10-20

摘要: 分析了升降算符与对易关系之间的关系,并找到了升降算符所应满足的基本关系式.从这个关系式出发分析了熟知的中心力场z方向角动量L2和一维谐振子能量的升降算符,还对其中人们常用的一些说法做了更正.

关键词: 升降算符, 对易关系, 本征值间隔

Abstract: The existence of ladder operators has something to do with commutation relation. We have deduced the basic formula of ladder.operators and successfully analyzed the ladder operators of L2 in field of central force as well as the ladder operators of energy in one dimensional harmonic oscillator. Some corrections have been done on understanding of the ladder operators.

Key words: ladder operators, commutation relation, eigenvalue gap

中图分类号: 

  • O413.1