摘要
在考虑有磁荷存在的情况下,引入了电磁场双四维势的描述方法。给出了场强与双四维势的关系,并且从Euler-Lagrange方程出发,推导出了具有电磁对偶对称性的Maxwell方程;讨论了具有对偶对称性的电磁场能量动量密度张量以及它们的特性;最后,证明了有磁源存在情况下电磁场的能量和动量守恒定律。
In the case of existing of the magnetic monopole, we introduce the concept of doublet potentials. Firstly, the relationship between the field strengths and the doublet potentials is give, and then from Euler-Lagrange equation, the electromagnetic duality Maxwell equation is also obtained. Then the energy-momentum tensor and its properties of sources are discussed. Finally, in the presence of sources, the law of conservation of the electromagnetic field energy and momentum are discussed.
出处
《陕西工学院学报》
2005年第1期87-90,共4页
Journal of Shaanxi Institute of Technology
基金
国家自然科学基金(10447005)
浙江省自然科学基金(M103042)
陕西理工学院科研基金(SLG0319)资助。