Theory of Light Scattering in Axion Electrodynamics
Theory of Light Scattering in Axion Electrodynamics
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DOI：
10.1143/jpsj.81.094401
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发表时间：
2012-09-01
影响因子：
1.7
通讯作者：
Ochiai, Tetsuyuki
中科院分区：
文献类型：
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作者：
Ochiai, Tetsuyuki
考虑到麦克斯韦拉格朗日中的轴子项，我们提出了分段常数轴子场中严格的光散射理论。特别是，我们关注具有受限和/或弯曲几何形状的轴子物质，并通过分析推导轴子板、圆柱体和球体的散射矩阵。轴子项产生具有非对角光导率的表面电流，从而产生新型光自旋轨道相互作用。结果，可以发生各种新颖的光散射现象。我们展示了增强的法拉第旋转、违反宇称的光散射以及偶极子辐射的强扰动。
Taking account of the axion term in the Maxwell Lagrangian, we present a rigorous theory of light scattering in piecewise-constant axion fields. In particular, we focus on axionic substances with confined and/or curved geometries, and the scattering matrices of an axionic slab, cylinder, and sphere are derived analytically. The axion term generates a surface current with off-diagonal optical conductivity, giving rise to a new type of photospin-orbit interaction. As a result, various novel light-scattering phenomena can take place. We demonstrate enhanced Faraday rotation, parity-violating light scattering, and strong perturbation of dipole radiation.