2005/03/29 | 四向电荷[Charge Four-Vector]
类别(Ω〖物理〗) | 评论(0) | 阅读(57) | 发表于 13:55
In MKS, the charge four-vector (also called the current density four-vector) is given by

where is the charge density, is the permittivity of free space, is the permeability of free space, and are the component of current density with respect to the coordinate axes. The squared norm of the charge four-vector is the Lorentz invariant
0

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