One loop graviton corrections to dynamical photons in de Sitter
D. Glavan, S. P. Miao, Tomislav Prokopec, R. P. Woodard
TL;DR
This paper calculates how quantum gravity effects in de Sitter space influence photon behavior, revealing that the dominant secular corrections come from spin 2 graviton contributions.
Contribution
It provides a gauge-independent analysis of one loop graviton corrections to photon modes in de Sitter, emphasizing the role of spin 2 contributions.
Findings
Leading secular corrections are from spin 2 graviton contributions.
Gauge independence of the main correction terms.
Explicit solutions for one loop photon mode functions.
Abstract
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.
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