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research article
Horava Gravity is Asymptotically Free in 2+1 Dimensions
We compute the beta functions of marginal couplings in projectable Horava 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 towards understanding the UV properties of realistic versions of Horava gravity.
Type
research article
Web of Science ID
WOS:000415687200004
Authors
Barvinsky, Andrei O.
•
Blas, Diego
•
Herrero-Valea, Mario
•
Sibiryakov, Sergey M.
•
Steinwachs, Christian F.
Publication date
2017
Publisher
Published in
Volume
119
Issue
21
Article Number
211301
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
December 4, 2017
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