大学物理 ›› 2009, Vol. 28 ›› Issue (8): 15-15.

• 著者文摘 • 上一篇    下一篇

关于空间平移不变性的一些评注

林琼桂   

  1. 中山大学物理科学与工程技术学院,广东广州510275
  • 出版日期:2009-08-20 发布日期:2009-08-20

Some notes on space translation invariance

  • Online:2009-08-20 Published:2009-08-20

摘要: 推广了量子力学中关于对称性的分析,与对称性相关的守恒量相应地推广为含时守恒量;证明了单粒子(包括相对论情况)在静态均匀磁场和含时线性势中运动具有空间平移不变性;求出了波函数的变换关系和相应的含时守恒量.

关键词: 对称性, 含时守恒量, 空间平移不变性, 均匀场

Abstract: A generalized analysis for symmetry in quantum mechanics is presented. The associated conserved quantities are extended to time-dependent ones. It is shown that a single particle (including the relativistic case) moving in a static uniform magnetic field and a time-dependent linear potential possesses space translation invariance. The translated wave function and the time-dependent conserved quantities are obtained.

Key words: symmetry, time-dependent conserved quantity, space translation invariance, uniform external field

中图分类号: 

  • O413.1