色散介质中波前和信息的传播
Propagation of Fronts and Information in Dispersive Media
摘要：
基于Kramers-Kronig关系，我们给出了一个一般性的证明：在正常或反常色散线性介质中，电磁脉冲中的任何（不连续非解析扰动）传播速度不能超过相速度$c$ .因此，不连续性（非分析扰动）所携带的信息不能在超光速中传输。
英文摘要：
We present a general proof based on Kramers-Kronig relations that, in a normal or anomalous dispersive linear medium, any (discontinuitynonanalytic disturbance) in an electromagnetic pulse can not propagate faster than the phase velocity, $c$. Consequently the information carried by the discontinuity (nonanalytical disturbance) can not be transmitted superluminally.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
