Coincident Massless, Minimally Coupled Scalar Correlators on General Cosmological Backgrounds
General Relativity and Quantum Cosmology
2023-06-02 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
The coincidence limits of the massless, minimally coupled scalar propagator and its first two derivatives have great relevance for the project of summing up the leading logarithms induced by loops of inflationary gravitons. We use dimensional regularization to derive good analytic approximations for the three quantities on a general cosmological background geometry which underwent inflation.
Keywords
Cite
@article{arxiv.2302.04808,
title = {Coincident Massless, Minimally Coupled Scalar Correlators on General Cosmological Backgrounds},
author = {E. Kasdagli and Martha Ulloa and R. P. Woodard},
journal= {arXiv preprint arXiv:2302.04808},
year = {2023}
}
Comments
30 pages, 5 figures, uses LaTeX2e, Version 2 revised for publication with improved figures and length of 34 pages