DISPERSION INVARIANT AND ENERGY-MOMENTUM TENSOR IN MACROSCOPIC ELECTRODYNAMICS

被引：0

作者：

EFIMOV, SP

YUDIN, LA

机构：

来源：

IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII RADIOFIZIKA | 1990年 / 33卷 / 11期

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Eigenvalue problem is introduced for macroscopic Maxwell's equations describing waves in medium similar to waveguide. The parameter lambda is derived for energy-momentum tensor by means of derivative: partial lambda/partial k(i), where k(i) is the wave vector. Dispersion invariant is shown to be a normalized action for the electromagnetic field in a medium. An example is considered for the wave guide with isotropic medium having space and time dispersion. Operation with lambda-parameter technique is demonstrated. Advantages are discussed for the given approach on calculation of energy-momentum tensor in more complex problems.

引用

页码：1221 / 1227

页数：7