Horava Gravity is Asymptotically Free in 2 +1 Dimensions

Andrei O. Barvinsky; Diego Blas; Mario Herrero-Valea; Sergey M. Sibiryakov; Christian F. Steinwachs

doi:10.1103/PhysRevLett.119.211301

Horava Gravity is Asymptotically Free in 2 +1 Dimensions

Andrei O. Barvinsky, Diego Blas, Mario Herrero-Valea, Sergey M. Sibiryakov, Christian F. Steinwachs

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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 towards understanding the UV properties of realistic versions of Hořava gravity.

Original language	English
Pages (from-to)	211301
Number of pages	1
Journal	Physical Review Letters
Volume	119
Early online date	20 Nov 2017
DOIs	https://doi.org/10.1103/PhysRevLett.119.211301
Publication status	Published - 24 Nov 2017

Keywords

High Energy Physics - Theory, General Relativity and Quantum Cosmology

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10.1103/PhysRevLett.119.211301Licence: CC BY

Hořava Gravity is Asymptotically_BARVINSKY_Epub20Nov2017_GOLD VoR(CC BY)Final published version, 229 KBLicence: CC BY

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abstract = "We compute the β functions of marginal couplings in projectable Ho{\v r}ava 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 Ho{\v r}ava gravity.",

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AU - Barvinsky, Andrei O.

AU - Blas, Diego

AU - Herrero-Valea, Mario

AU - Sibiryakov, Sergey M.

AU - Steinwachs, Christian F.

PY - 2017/11/24

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N2 - 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 towards understanding the UV properties of realistic versions of Hořava gravity.

AB - 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 towards understanding the UV properties of realistic versions of Hořava gravity.

KW - High Energy Physics - Theory, General Relativity and Quantum Cosmology

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DO - 10.1103/PhysRevLett.119.211301

M3 - Article

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VL - 119

SP - 211301

JO - Physical Review Letters

JF - Physical Review Letters

ER -

Horava Gravity is Asymptotically Free in 2 +1 Dimensions

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