非均匀轴子场中光的自旋霍尔效应
Spin Hall effect of light in inhomogeneous axion field
摘要：
研究了平坦Robertson-Walker宇宙中弱非均匀轴子场中光的自旋输运，导出了圆偏振光的自旋霍尔效应。把deSitter相中轴子场的原始量子涨落作为不均匀性的起源，我们证明了相关器的共形不变性决定了圆偏振宇宙射线路径的均方根（r.m.s）涨落.我们解释如何可以实验确定的均方根波动。
英文摘要：
We study the spin transport of light in weakly inhomogeneous axion field in a flat Robertson-Walker universe and derive the spin Hall effect for circularly polarized rays. Regarding primordial quantum fluctuations of the axion field in the de Sitter phase as the origin of the inhomogeneity, we show that the conformal invariance of the correlator determines the root-mean-square (r.m.s) fluctuations of the path of circularly polarized cosmic rays. We explain how the r.m.s fluctuations can be experimentally determined.
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