Unimodular quantum gravity: steps beyond perturbation theory

Unimodular quantum gravity: steps beyond perturbation theory

Abstract The renormalization group flow of unimodular quantum gravity is computed by taking into account the graviton and Faddeev-Popov ghosts anomalous dimensions. In this setting, a ultraviolet attractive fixed point is found. Symmetry-breaking terms induced by the coarse-graining procedure are in...

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Bibliographic Details
Main Authors: Gustavo P. de Brito, Antonio D. Pereira
Format: Article
Language:English
Published: SpringerOpen 2020-09-01
Series:Journal of High Energy Physics
Subjects:
Models of Quantum Gravity
Nonperturbative Effects
Renormalization Group
Online Access:http://link.springer.com/article/10.1007/JHEP09(2020)196
Description
Summary:Abstract The renormalization group flow of unimodular quantum gravity is computed by taking into account the graviton and Faddeev-Popov ghosts anomalous dimensions. In this setting, a ultraviolet attractive fixed point is found. Symmetry-breaking terms induced by the coarse-graining procedure are introduced and their impact on the flow is analyzed. A discussion on the equivalence of unimodular quantum gravity and standard full diffeomorphism invariant theories is provided beyond perturbation theory.
ISSN:1029-8479

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