Recently, the study of subluminal and superluminal light propagation has attracted a great deal of interest. 光速减慢和超光速的光脉冲传播研究成为量子光学中的热门课题。
This belief arises out of the idea that special relativity is inextricably bound up with the impossibility of transmitting messages faster than the speed of light. 这种信仰的根基是，讯息要以超光速传递是不可能的，而这与狭义相对论息息相关。
