摘要
从相对论协变性原理出发,得到了电流密度方程满足相对论协变性的自洽展开式.研究表明,只有在考虑了磁场对电流密度的影响情况下,才能得到电流密度四维矢量的自洽的相对论协变式.为满足相对论协变性,电流密度关于电磁场的三阶近似方程应该包括电场强度的三次方非线性项.
According to the principle of relativistic covariance, this paper presents the relativistic covariant equation of current density. It is proved that the effect of magnetic field is necessarily consi-(dered) to get a self-consistent relativistic covariant of 4-dimensional current density, thus a nonlinear (item) of E^2 E→ should be added to the 3-order approximate equation of current density to satisfy the relativistic covariance.
出处
《海军工程大学学报》
CAS
2004年第1期1-4,22,共5页
Journal of Naval University of Engineering
基金
国家自然科学基金项目(10272115)
海军工程大学科研基金项目
关键词
电流密度
相对论
协变性原理
电磁流体
current density
theory of relativity
principle of covariance
electromagnetic fluid
