论文标题
通过光扰动检测引力波
Detection of gravitational waves by light perturbation
论文作者
论文摘要
当重力波过去时，光受到扰动。通过在带有引力波的时空中求解麦克斯韦的方程来显示这一点。溶液表现出由于重力波引起的扰动。我们确定了在任意方向传播的光和重力波的一般情况的扰动。还表明，由于重力波引起的光的扰动导致光子转运时间的延迟，这意味着麦克斯韦方程的扰动分析与光子传播的无效分析之间存在等效性。我们介绍了该原理在通过脉冲星时阵列检测引力波的应用的一个示例，其中采用了我们对一般情况的扰动分析，以表明检测器响应如何随相对于检测器的光脉冲的入射角而变化。
Light undergoes perturbation as gravitational waves pass by. This is shown by solving Maxwell's equations in a spacetime with gravitational waves; a solution exhibits a perturbation due to gravitational waves. We determine the perturbation for a general case of both light and gravitational waves propagating in arbitrary directions. It is also shown that a perturbation of light due to gravitational waves leads to a delay of the photon transit time, which implies an equivalence between the perturbation analysis of Maxwell's equations and the null geodesic analysis for photon propagation. We present an example of application of this principle with regard to the detection of gravitational waves via a pulsar timing array, wherein our perturbation analysis for the general case is employed to show how the detector response varies with the incident angle of a light pulse with respect to the detector.
