Representation of arbitrary charge-current densities by polarization and magnetization fields

Representation of arbitrary charge-current densities by polarization and magnetization fields
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用极化场和磁化场表示任意充电电流密度

DOI:
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发表时间:
1998
期刊:
影响因子:
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通讯作者:
G. Goedecke
G. Goedecke
中科院分区:
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文献类型:
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作者:
G. Goedecke

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它表明,任何电磁荷流分布可以表示的极化和磁化场,加上一个符号的静电荷密度,如果总电荷q是非零的,和标准的麦克斯韦方程减少,在一般情况下,传统的形式用于材料介质加上静态高斯定律,如果q = 0。所考虑的例子包括电容器、点电荷和任意运动的振荡点电偶极子,以及由振荡点电偶极子或其他粒子组成的发光介质。
It is shown that any electromagnetic charge–current distribution may be expressed in terms of polarization and magnetization fields, plus a static charge density of one sign if the total charge q is nonzero, and that the standard Maxwell equations reduce, in general, to the conventional form used for material media plus a static Gauss law if q≠0. Examples considered include a capacitor, a point charge and an oscillating point electric dipole in arbitrary motion, and lumpy media composed of oscillating point electric dipoles or other particles.