2021/12/31 by Dražen Glavan, D. Glavan, S. P. Miao +3
Physics and Astronomy · #Anti-de Sitter space #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Curvature #De Sitter space #De Sitter universe #Gravitation #Graviton #Logarithm #Massless particle #Mathematical physics #Particle physics theoretical and experimental studies #Physics #Quantum electrodynamics #Quantum mechanics #Renormalization #Renormalization group #Scalar (mathematics) #Scalar field #Universe #astro-ph.CO #gr-qc #hep-th
paper · pdf · doi:10.1007/jhep03(2022)088
published as JHEP 03 (2022) 088 · 26 pages, 2 figures, uses LaTeX2e, Version 2 revised slightly for publication
openalex publication_date 2022/03/01 · arxiv created 2022/03/15 · arxiv updated 2022/03/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
We consider single graviton loop corrections to the effective field equation of a massless, minimally coupled scalar on de Sitter background in the simplest gauge. We find a large temporal logarithm in the approach to freeze-in at late times, but no correction to the feeze-in amplitude. We also find a large spatial logarithm (at large distances) in the scalar potential generated by a point source, which can be explained using the renormalization group with one of the higher derivative counterterms regarded as a curvature-dependent field strength renormalization. We discuss how these results set the stage for a project to purge gauge dependence by including quantum gravitational corrections to the source which disturbs the effective field and to the observer who measures it.