Linear media in classical electrodynamics and the Post constraint

被引:60
|
作者
Hehl, FW
Obukhov, YN
机构
[1] Univ Cologne, Inst Theoret Phys, D-50923 Cologne, Germany
[2] Univ Missouri, Dept Phys & Astron, Columbia, MO 65211 USA
[3] Moscow MV Lomonosov State Univ, Dept Theoret Phys, Moscow 117234, Russia
关键词
electrodynamics; linear medium; constitutive tensor; Post constraint; Axion field; Tellegen gyrator; Skewon field; classical field theory;
D O I
10.1016/j.physleta.2004.11.038
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The Maxwell equations are formulated in a generally covariant and metric-free way in 1 + 3 and subsequently in 4 dimensions. For this purpose, we use the excitations D, H and the field strengths E, B. A local and linear constitutive law between excitations and field strengths is assumed, with a constitutive tensor of 36 components. The properties of this tensor are discussed. In particular, we address the validity of the Post constraint. In this connection, the Tellegen gyrator, the axion field, and the "perfect electromagnetic conductor" of Lindell and Sihvola are compared with each other. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:249 / 259
页数:11
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