Motion of photons in a gravitational wave background
Motion of photons in a gravitational wave background
复制标题
引力波背景中光子的运动
DOI：
10.1088/1674-1137/41/9/093108
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发表时间：
2017
影响因子：
3.6
通讯作者：
Zhao Zhi Chao
中科院分区：
文献类型：
--
作者：
Chang Zhe;Huang Chao Guang;Zhao Zhi Chao
从几何光学和波动光学的角度重新分析了迈克耳孙干涉仪中的光子运动。光子在引力波背景中的经典路径是由费马原理导出的，它与广义相对论中的零测地线相同。在平空间近似下，给出了引力波背景下的变形麦克斯韦方程组和电场波动方程。这两种方法都表明，即使干涉仪响应的包络也取决于引力波的频率，但它几乎与镜子振动的频率无关。
Photon motion in a Michelson interferometer is re-analyzed in terms of both geometrical optics and wave optics. The classical paths of the photons in the background of a gravitational wave are derived from the Fermat principle, which is the same as the null geodesics in general relativity. The deformed Maxwell equations and the wave equations of electric fields in the background of a gravitational wave are presented in a flat-space approximation. Both methods show that even the envelope of the response of an interferometer depends on the frequency of a gravitational wave, but it is almost independent of the frequency of the mirror’s vibrations.