摘要
从相速度和群速度的定义出发,分析了波在非色散介质和色散介质中传播的群速度大小,并阐述了群速度的统计意义和超光速现象。澄清了人们对群速度概念上的误解。
According to the definitions of phase velocity and group velocity,the article makes an analysis of the group velocities of wave in nondispersive and dispersive media and expounds the statistic significance of group velocity and its hyperlightspeed phenomenon.Therefore,the misunderstanding of the concept of group velocity has been cleared up.
出处
《孝感学院学报》
2003年第3期44-47,共4页
JOURNAL OF XIAOGAN UNIVERSITY
