摘要
本文选取电场强度矢量为广义坐标构造了电磁系统的拉格朗日泛函。实现了有源电磁场的直接变分。共轭动量正好是磁场强度矢量。这种途径可以直捷地过渡到量子场。
In this paper, a Lagrange functional of electromagnetic system is constructed in terms of electric field vectors as generalized Coordinates, and the Lagrange-Hamilton variation formulation is effected. The conjugate momenta of the system are just magnetic field vectors. In this approach the conversion into qiantum field should be direct.
关键词
有源电磁场
拉格朗日泛函
electromagnetic field with sources, lagrange functional, direct variaitation, electric field vectors, generalized coordinates
