Explaining large electromagnetic logarithms from loops of inflationary gravitons

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

doi:10.1007/JHEP08(2023)195

Explaining large electromagnetic logarithms from loops of inflationary gravitons

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

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

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 language	English
Article number	195
Number of pages	18
Journal	Journal of High Energy Physics
Issue number	8
DOIs	https://doi.org/10.1007/JHEP08(2023)195
Publication status	Published - 29 Aug 2023

Funding

DG was supported by the European Union and the Czech Ministry of Education, Youth and Sports (Project: MSCA Fellowship CZ FZU I - CZ.02.01.01/00/22_010/0002906). SPM was supported by Taiwan NSTC grants 111-2112-M-006-038 and 112-2112-M-006-017. TP was supported by the D-ITP consortium, a program of the Netherlands Organization for Scientific Research (NWO) that is funded by the Dutch Ministry of Education, Culture and Science (OCW). RPW was supported by NSF grant PHY-2207514 and by the Institute for Fundamental Theory at the University of Florida.

Funders	Funder number
European Union	111-2112-M-006-038
Czech Ministry of Education, Youth and Sports (Project: MSCA Fellowship)	112-2112-M-006-017, PHY-2207514
Taiwan NSTC grants
D-ITP consortium, a program of the Netherlands Organization for Scientific Research (NWO) - Dutch Ministry of Education, Culture and Science (OCW)
NSF
Institute for Fundamental Theory at the University of Florida
Not added	CZ FZU I CZ.02.01.01/00/22_010/0002906

Keywords

Renormalization Group
de Sitter space

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Explaining large electromagnetic logarithms from loops of inflationary gravitons

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