Daniel J. Gauthier, Michael D. Stenner, Mark Allen Neifeld
Abstract
We describe optical pulse propagation through a medium where the group velocity exceeds the speed of light in vacuum. The information velocity is observed to be subluminal, consistent with the special theory of relativity.
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We describe optical pulse propagation through a medium where the group velocity exceeds the speed of light in vacuum. The information velocity is observed to be subluminal, consistent with the special theory of relativity.
Key concepts: Superluminal motion, Group velocity, Physics, Speed of light (cellular automaton), Optics, Theory of relativity, Transmission (telecommunications), Special relativity