The conformal sector of Quantum Einstein Gravity beyond the local potential approximation
Abstract
The anomalous scaling of Newton's constant around the Reuter fixed point is dynamically computed using the functional flow equation approach. Specifically, we thoroughly analyze the flow of the most general conformally reduced EinsteinHilbert action. Our findings reveal that, due to the distinctive nature of gravity, the anomalous dimension η of the Newton's constant cannot be constrained to have one single value: the ultraviolet critical manifold is characterized by a line of fixed points
 Publication:

Physics Letters B
 Pub Date:
 December 2023
 DOI:
 10.1016/j.physletb.2023.138311
 arXiv:
 arXiv:2309.15514
 Bibcode:
 2023PhLB..84738311B
 Keywords:

 Functional renormalization group;
 Asymptotic safety;
 High Energy Physics  Theory
 EPrint:
 8 pages, 3 figures