Running Gauge Coupling in Asymptotically Safe Quantum Gravity
High Energy Physics - Theory
2015-05-14 v2
Abstract
We investigate the non-perturbative renormalization group behavior of the gauge coupling constant using a truncated form of the functional flow equation for the effective average action of the Yang-Mills-gravity system. We find a non-zero quantum gravity correction to the standard Yang-Mills beta function which has the same sign as the gauge boson contribution. Our results fit into the picture according to which Quantum Einstein Gravity (QEG) is asymptotically safe, with a vanishing gauge coupling constant at the non-trivial fixed point.
Cite
@article{arxiv.0910.4938,
title = {Running Gauge Coupling in Asymptotically Safe Quantum Gravity},
author = {Jan-Eric Daum and Ulrich Harst and Martin Reuter},
journal= {arXiv preprint arXiv:0910.4938},
year = {2015}
}
Comments
27 pages