Propagation of Fronts and Information in Dispersive Media
classification
⚛️ physics.class-ph
keywords
dispersivedisturbanceinformationanomalouscarriedconsequentlydiscontinuitydiscontinuitynonanalytic
read the original abstract
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.
This paper has not been read by Pith yet.
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.