Superluminal Velocity of Photons in a Gravitational Background
I.B. Khriplovich
TL;DR
This paper investigates how radiative corrections affect photon speed in a gravitational field, concluding that under certain conditions, photons can travel faster than the speed of light in vacuum.
Contribution
It demonstrates that radiative corrections can lead to superluminal photon velocities in a gravitational background without relying on the low-frequency approximation.
Findings
Photon velocity can exceed the speed of light due to radiative corrections.
Superluminal propagation occurs without the low-frequency approximation.
Results challenge traditional notions of light speed in gravitational fields.
Abstract
The influence of radiative corrections on the photon propagation in a gravitational background is investigated without the low-frequency approximation . The conclusion is made in this way that the velocity of light can exceed unity.
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