Further Evidence for a Gravitational Fixed Point
High Energy Physics - Theory
2009-11-11 v2
Abstract
A theory of gravity with a generic action functional and minimally coupled to N matter fields has a nontrivial fixed point in the leading large N approximation. At this fixed point, the cosmological constant and Newton's constant are nonzero and UV relevant; the curvature squared terms are asymptotically free with marginal behaviour; all higher order terms are irrelevant and can be set to zero by a suitable choice of cutoff function.
Cite
@article{arxiv.hep-th/0511177,
title = {Further Evidence for a Gravitational Fixed Point},
author = {R. Percacci},
journal= {arXiv preprint arXiv:hep-th/0511177},
year = {2009}
}
Comments
LaTEX, 4 pages. Relative to the published paper, a sign has been corrected in equations (17) and (18)