大学物理 ›› 2020, Vol. 39 ›› Issue (01): 12-13.doi: 10.16854 / j.cnki.1000-0712.190405

• 教学讨论 • 上一篇    下一篇

澄清对相对论性原理和协变性的误解

赵凯华   

  1. 北京大学物理学院,北京 100871
  • 收稿日期:2019-08-30 修回日期:2019-09-16 出版日期:2020-01-20 发布日期:2020-03-01
  • 作者简介:赵凯华( 1930-) ,浙江杭州人,北京大学物理学院教授. 荣获2015 年度国际物理教学奖章.

Clearing up the misunderstanding about the principle of relativity and covariance of equations

ZHAO Kai-hua   

  1. School of Physics,Peking University,Beijing 100871,China
  • Received:2019-08-30 Revised:2019-09-16 Online:2020-01-20 Published:2020-03-01

摘要: 近来有些文章断言,在一个惯性参考系里能量守恒的物理系统,在别的参考系看来能量也一定守恒.实际上这些作者混淆了物理方程式的协变性和相对性原理.本文将澄清这一误解.

关键词: 相对性原理, 协变性, 能量守恒

Abstract: Some authors confirm that the energy of a physical system conserves in an inertial frame of referencemust do so in any other frames. Actually they have confused the covariance of equations with the principle of relativity. The present article attempts to clear up this misunderstanding.

Key words: principle of relativity, covariance of equations, energy conservation