Journal article
Hořava Gravity is Asymptotically Free in 2+1 Dimensions
Abstract
We compute the β functions of marginal couplings in projectable Hořava gravity in 2+1 spacetime dimensions. We show that the renormalization group flow has an asymptotically free fixed point in the ultraviolet (UV), establishing the theory as a UV-complete model with dynamical gravitational degrees of freedom. Therefore, this theory may serve as a toy model to study fundamental aspects of quantum gravity. Our results represent a step forward …
Authors
Barvinsky AO; Blas D; Herrero-Valea M; Sibiryakov SM; Steinwachs CF
Journal
Physical Review Letters, Vol. 119, No. 21,
Publisher
American Physical Society (APS)
Publication Date
November 24, 2017
DOI
10.1103/physrevlett.119.211301
ISSN
0031-9007