Electromagnetic negative-phase-velocity propagation in the ergosphere of a rotating black hole
Electromagnetic negative-phase-velocity propagation in the ergosphere of a rotating black hole
We report on the occurrence of negative-phase-velocity (NPV) planewave propagation in the ergosphere of a rotating black hole. By implementing the Kerr metric, it is demonstrated that regions of NPV propagation are concentrated at the equator of the ergosphere, while NPV propagation is less common towards the polar regions. Increasing …