Macroscopic quantum electrodynamics in nonlocal and nonreciprocal media
Macroscopic quantum electrodynamics in nonlocal and nonreciprocal media
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DOI：
10.1088/1367-2630/14/8/083034
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发表时间：
2012-08-29
影响因子：
3.3
通讯作者：
Scheel, Stefan
中科院分区：
文献类型：
--
作者：
Buhmann, Stefan Yoshi;Butcher, David T.;Scheel, Stefan
我们制定宏观量子电动力学在最一般的线性，吸收介质。特别是，Onsager互惠性并不假设成立。场的量子化是基于电磁场的源量表示的并矢绿色张量。对于具有非局部响应的介质，采用复电导率张量的描述。作为另一种描述，我们引入介电常数，磁导率和磁电磁化率，以获得一个明确的对偶不变的计划。我们发现，对偶不变性只持有作为一个连续的对称性时，允许非互易响应。
We formulate macroscopic quantum electrodynamics in the most general linear, absorbing media. In particular, Onsager reciprocity is not assumed to hold. The field quantization is based on the source-quantity representation of the electromagnetic field in terms of the dyadic Green's tensor. For media with a nonlocal response, a description in terms of a complex conductivity tensor is employed. As an alternative description, we introduce the permittivity, permeability and magnetoelectric susceptibilities to obtain an explicitly duality-invariant scheme. We find that duality invariance only holds as a continuous symmetry when nonreciprocal responses are allowed for.