Effective universality in quantum gravity
High Energy Physics - Theory
2018-10-10 v2 General Relativity and Quantum Cosmology
Abstract
We investigate the asymptotic safety scenario for a scalar-gravity system. This system contains two avatars of the dynamical Newton coupling, a gravitational self-coupling and a scalar-graviton coupling. We uncover an effective universality for the dynamical Newton coupling on the quantum level: its momentum-dependent avatars are in remarkable quantitative agreement in the scaling regime of the UV fixed point. For the background Newton coupling, this effective universality is not present, but qualitative agreement remains.
Cite
@article{arxiv.1804.00012,
title = {Effective universality in quantum gravity},
author = {Astrid Eichhorn and Peter Labus and Jan M. Pawlowski and Manuel Reichert},
journal= {arXiv preprint arXiv:1804.00012},
year = {2018}
}
Comments
24 pages, 10 figures; v2: minor changes, refs updated