Canonical quantization of electromagnetism in spatially dispersive media
Canonical quantization of electromagnetism in spatially dispersive media
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DOI：
10.1088/1367-2630/16/1/013030
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发表时间：
2014-01-17
影响因子：
3.3
通讯作者：
Philbin, T. G.
中科院分区：
文献类型：
--
作者：
Horsley, S. A. R.;Philbin, T. G.
我们找到了描述空间色散均匀介质中电磁场的作用量。这个理论是量子化的，哈密顿量是对角化的一个连续的正常模式。它被发现，在介质中的非局部响应的引入自动调节一些以前发散的结果，我们计算一个有限的值在一个固定的频率内的均匀介质中的电磁场的强度。最后，我们讨论了空间分散在驯服卡西米尔型效应计算中出现的分歧的潜在重要性。
We find the action that describes the electromagnetic field in a spatially dispersive, homogeneous medium. This theory is quantized and the Hamiltonian is diagonalized in terms of a continuum of normal modes. It is found that the introduction of nonlocal response in the medium automatically regulates some previously divergent results, and we calculate a finite value for the intensity of the electromagnetic field at a fixed frequency within a homogeneous medium. To conclude we discuss the potential importance of spatial dispersion in taming the divergences that arise in calculations of Casimir- type effects.