One loop graviton corrections to dynamical photons in de Sitter

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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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Funding Information
  • Narodowe Centrum Nauki (2014/14/E/ST9/00152)
  • Directorate for Mathematical and Physical Sciences (PHY-1506513)
  • Dutch Ministry of Education, Culture and Science (D-ITP consortium)
  • Ministry of Science and Technology, Taiwan (103-2112-M-006-001-MY3)

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