Resumming Fermion Loops for Inflationary Gravity
General Relativity and Quantum Cosmology
2025-01-07 v1 High Energy Physics - Theory
Abstract
We compute the 1-loop contribution to the graviton self-energy from a loop of massless fermions on a general cosmological background. The result is used to quantum-correct the linearized Einstein equation on de Sitter background and work out 1-loop corrections to gravitational radiation and to the response to a point mass. The renormalization group is employed to sum these to all orders for as long as the de Sitter phase persists.
Cite
@article{arxiv.2501.01972,
title = {Resumming Fermion Loops for Inflationary Gravity},
author = {A. J. Foraci and R. P. Woodard},
journal= {arXiv preprint arXiv:2501.01972},
year = {2025}
}
Comments
11 pages, 1 figure, uses LaTeX2e