Explaining large electromagnetic logarithms from loops of inflationary gravitons

D. Glavan, S. P. Miao, T. Prokopec, R. P. Woodard

Research output: Contribution to journalArticleAcademicpeer-review


Recent progress on nonlinear sigma models on de Sitter background has permitted the resummation of large inflationary logarithms by combining a variant of Starobinsky's stochastic formalism with a variant of the renormalization group. We reconsider single graviton loop corrections to the photon wave function, and to the Coulomb potential, in light of these developments. Neither of the two 1-loop results have a stochastic explanation, however, the flow of a curvature-dependent field strength renormalization explains their factors of ln(a). We speculate that the factor of ln(Hr) in the Coulomb potential should not be considered as a leading logarithm effect.
Original languageEnglish
Article number195
Number of pages18
JournalJournal of High Energy Physics
Issue number8
Publication statusPublished - 29 Aug 2023


  • Renormalization Group
  • de Sitter space


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