论文标题
基于地球的激光腔实验的重力挠度
Gravitational light deflection in Earth-based laser cavity experiments
论文作者
论文摘要
正如爱因斯坦（Einstein）的一般相对论所知道的那样，在存在巨大物体的存在下光的传播受重力的影响。在这项工作中，我们讨论了使用高技能光腔中的基于地球的实验中可以观察到重力光弯曲的效果。为此，我们从理论上研究了均匀重力场的时空中电磁波的动力学，并为高斯束传播的结果进行了分析表达。该理论框架用于计算Fabry-Pérot腔输出处的强度曲线，并估计腔输出信号上地球重力的烙印。特别是，我们发现重力会导致输出强度曲线的不对称性。基于此，我们讨论了一个测量方案，该方案可以在GEO600重力波检测器和AEI 10 M检测器原型等设施中实现。
As known from Einstein's theory of general relativity, the propagation of light in the presence of a massive object is affected by gravity. In this work, we discuss whether the effect of gravitational light bending can be observed in Earth-based experiments, using high-finesse optical cavities. In order to do this, we theoretically investigate the dynamics of electromagnetic waves in the spacetime of a homogeneous gravitational field and give an analytical expression for the resulting modifications to Gaussian beam propagation. This theoretical framework is used to calculate the intensity profile at the output of a Fabry-Pérot cavity and to estimate the imprints of Earth's gravity on the cavity output signal. In particular, we found that gravity causes an asymmetry of the output intensity profile. Based on that, we discuss a measurement scheme, that could be realized in facilities like the GEO600 gravitational wave detector and the AEI 10 m detector prototype.
