Higher Derivative Gravity from the Universal Renormalization Group Machine
High Energy Physics - Theory
2012-02-29 v2 General Relativity and Quantum Cosmology
Abstract
We study the renormalization group flow of higher derivative gravity, utilizing the functional renormalization group equation for the average action. Employing a recently proposed algorithm, termed the universal renormalization group machine, for solving the flow equation, all the universal features of the one-loop beta-functions are recovered. While the universal part of the beta-functions admits two fixed points, we explicitly show that the existence of one of them depends on the choice of regularization scheme, indicating that it is most probably unphysical.
Cite
@article{arxiv.1111.1743,
title = {Higher Derivative Gravity from the Universal Renormalization Group Machine},
author = {F. Saueressig and K. Groh and S. Rechenberger and O. Zanusso},
journal= {arXiv preprint arXiv:1111.1743},
year = {2012}
}
Comments
7 pages, published version