Unimodular quantum gravity: steps beyond perturbation theory

Unimodular quantum gravity: steps beyond perturbation theory

A bstract 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 i...

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Bibliographic Details
Published in:The journal of high energy physics Vol. 2020; no. 9; pp. 1 - 34
Main Authors: de Brito, Gustavo P., Pereira, Antonio D.
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-09-2020
Springer Nature B.V
SpringerOpen
Subjects:
Broken symmetry
Classical and Quantum Gravitation
Elementary Particles
Ghosts
Granulation
Gravitons
High energy physics
Isomorphism
Models of Quantum Gravity
Nonperturbative Effects
Perturbation theory
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum gravity
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
Renormalization Group
String Theory
Renormalization Group
Models of Quantum Gravity
Nonperturbative Effects
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Summary:A bstract 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
1029-8479
DOI:10.1007/JHEP09(2020)196