Essential Renormalization Group Equation for Gravity coupled to a Scalar field
High Energy Physics - Theory
2025-09-24 v2 General Relativity and Quantum Cosmology
Abstract
We study the essential renormalization group equation, in which inessential couplings are removed via field redefinitions, for Einstein gravity coupled to a massive scalar field in the presence of a cosmological constant. Our results indicate that perturbatively nonrenormalizable terms can be eliminated due to the cosmological term, in contrast to the case of perturbation around flat spacetime. We find a nontrivial fixed point for the Newton coupling and the cosmological term.
Cite
@article{arxiv.2506.03601,
title = {Essential Renormalization Group Equation for Gravity coupled to a Scalar field},
author = {Nobuyoshi Ohta and Masatoshi Yamada},
journal= {arXiv preprint arXiv:2506.03601},
year = {2025}
}
Comments
32pages, Version published in Phys.Rev.D