Abstract
A theory of gravity with a generic action functional and minimally coupled to matter fields has a nontrivial fixed point in the leading large 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 behavior; all higher order terms are irrelevant and can be set to zero by a suitable choice of cutoff function.
- Received 23 November 2005
DOI:https://doi.org/10.1103/PhysRevD.73.041501
©2006 American Physical Society