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电磁能量-动量转化和守恒定律四维形式的一种推导

A derivation of the four-dimensional form of the law on theelectromagnetic energy-momentum transformation and conservation

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【作者】 李子军杨尚明钟玉荣王子安李作宏崔建营

【Author】 LI Zi-jun~1,YANG Shang-ming~1,ZHONG Yu-rong~1,WANG Zi-an~2,LI Zuo-hong~1,CUI Jian-ying~1(1. Institute of Science and Technology for Opto-Electronic Information, Yantai University, Yantai 264005,China;2. Department of Physics, Inner Mongolia University for Nationalities, Tongliao, Inner Mongolia 028043,China)

【机构】 烟台大学光电学院内蒙古民族大学物理系烟台大学光电学院 山东烟台 264005山东烟台 264005内蒙古通辽 028043山东烟台 264005

【摘要】 定义了电磁场的四维动量流密度张量,并将电磁能量转化和守恒定律及动量转化和守恒定律写成了四维协变形式.给出了三维电磁能量密度、能流密度、动量密度和动量流密度关于两个惯性系之间的变换关系.还给出了四维动量流密度张量与四维电磁场张量之间的依赖关系.

【Abstract】 The four-dimensional momentum current density tensor of electromagnetic field is defined. Both law of the electromagnetic energy transformation and conservation and law of the electromagnetic momentum transformation and conservation are written into four-dimensional covariant form. It is given that transformation relation on the three-dimensional electromagnetic energy density and energy current density and momentum density and momentum current density concerning two inertial system. The dependence relation of four-dimensional momentum current density tensor with four-dimensional electromagnetic field tensor is also presented.

【基金】 山东省自然科学基金资助项目(Y2003A01)
  • 【分类号】O441
  • 【被引频次】3
  • 【下载频次】333
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