Global Flows in Quantum Gravity
High Energy Physics - Theory
2016-02-17 v2 General Relativity and Quantum Cosmology
Abstract
We study four-dimensional quantum gravity using non-perturbative renormalization group methods. We solve the corresponding equations for the fully momentum-dependent propagator, Newton's coupling and the cosmological constant. For the first time, we obtain a global phase diagram where the non-Gaussian ultraviolet fixed point of asymptotic safety is connected via smooth trajectories to a classical infrared fixed point. The theory is therefore ultraviolet complete and deforms smoothly into classical gravity as the infrared limit is approached.
Cite
@article{arxiv.1403.1232,
title = {Global Flows in Quantum Gravity},
author = {Nicolai Christiansen and Benjamin Knorr and Jan M. Pawlowski and Andreas Rodigast},
journal= {arXiv preprint arXiv:1403.1232},
year = {2016}
}
Comments
18 pages,7 figures, typos in introduction and appendix A fixed