摘要
由热力学第一定律及无损条件导出了介电张量的对称性；证明了电能密度表达式是介电张量对称性的必然推论；同时还证明了理想电介质具有厄密复介电张量，而欧姆导体导致对称的非厄密广义介电张量。
The symmetry of the permittivity tensor is found to be based on the first law of thermodynamics and the non-wastage condition. The expression of energy density is proved as the deduction of this symmetry. It has also been shown that ideal dielectrics possess Hermitian comptex permittivity tensor, while Ohmic conduction leads to symmetric but non -Hermitian generalizied permittivity.
出处
《重庆师范大学学报（自然科学版）》
CAS
1997年第S1期8-11,共4页
Journal of Chongqing Normal University:Natural Science
关键词
介电张量
对称性
permittivity tenser, symmetry
