THE UNBEARABLE BEINGNESS OF LIGHT โ Dressingand Undressing Photonsin Black Hole Spacetimes
THE UNBEARABLE BEINGNESS OF LIGHT โ Dressingand Undressing Photonsin Black Hole Spacetimes
Gravitational tidal forces acting on the virtual e + e - cloud surrounding a photon endow spacetime with a nontrivial refractive index. This has remarkable properties unique to gravitational theories including superluminal low-frequency propagation, in apparent violation of causality, and amplification of the renormalized photon field, in apparent violation of โฆ