论文标题
在到达时，重力波和光线之间的时间差
On arrival time difference between lensed gravitational waves and light
论文作者
论文摘要
众所周知，如果传播波的波长与镜头对象的Schwarzshild半径相当或大，几何光学器件不再适用于重力镜头。我们研究了波光学中引力波的传播，尤其是关注它们到达时间与光的到达时间之间的差异。我们认为，与先前工作中的观察相反，当引力波和光同时从同一来源发出时，引力波从未比光得多。
It is known that geometrical optics no longer applies to the gravitational lensing if the wavelength of a propagating wave becomes comparable to or larger than the Schwarzshild radius of a lensing object. We investigate the propagation of gravitational waves in wave optics, particularly focusing on the difference between their arrival time and the arrival time of light. We argue that, contrary to the observation in the previous work, gravitational waves never arrive at an observer earlier than light when both gravitational waves and light are emitted from a same source simultaneously.
