One loop graviton corrections to dynamical photons in de Sitter. (English) Zbl 1368.83034
Summary: We employ a recent, general gauge computation of the one loop graviton contribution to the vacuum polarization on de Sitter to solve for one loop corrections to the photon mode function. The vacuum polarization takes the form of a gauge independent, spin 2 contribution and a gauge dependent, spin 0 contribution. We show that the leading secular corrections derive entirely from the spin 2 contribution.
MSC:
| 83C45 | Quantization of the gravitational field |
| 83F05 | Relativistic cosmology |
| 81T20 | Quantum field theory on curved space or space-time backgrounds |
| 78A25 | Electromagnetic theory (general) |
