Quantum gravitational optics
Quantum gravitational optics
复制标题
量子引力光学
DOI：
10.1080/00107510310001617106
复制
发表时间：
2003
影响因子：
2
通讯作者：
G. Shore
中科院分区：
文献类型：
--
作者：
G. Shore
在量子理论中，爱因斯坦广义相对论的弯曲时空充当了光传播的色散光学介质。引力彩虹和双折射取代了光线绘制出弯曲时空的零测地线的经典图像。更值得注意的是，超光速传播成为了一种真正的可能性，这引发了一个问题，即是否有可能向过去发送信号。在这篇文章中，我们回顾了广义相对论中光传播的量子理论的最新进展，并讨论了超光速光是否与因果关系相容。
In quantum theory, the curved spacetime of Einstein's general theory of relativity acts as a dispersive optical medium for the propagation of light. Gravitational rainbows and birefringence replace the classical picture of light rays mapping out the null geodesics of curved spacetime. Even more remarkably, superluminal propagation becomes a real possibility, raising the question of whether it is possible to send signals into the past. In this article, we review recent developments in the quantum theory of light propagation in general relativity and discuss whether superluminal light is compatible with causality.