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The Search for the Universality Class of Metric Quantum Gravity
Version 1
: Received: 24 April 2021 / Approved: 26 April 2021 / Online: 26 April 2021 (12:08:28 CEST)
A peer-reviewed article of this Preprint also exists.
Martini, R.; Ugolotti, A.; Zanusso, O. The Search for the Universality Class of Metric Quantum Gravity. Universe 2021, 7, 162. Martini, R.; Ugolotti, A.; Zanusso, O. The Search for the Universality Class of Metric Quantum Gravity. Universe 2021, 7, 162.
Abstract
On the basis of a limited number of reasonable axioms, we discuss the classification of all the possible universality classes of diffeomorphisms invariant metric theories of quantum gravity. We use the language of the renormalization group and adopt several ideas which originate in the context of statistical mechanics and quantum field theory. Our discussion leads to several ideas that could affect the status of the asymptotic safety conjecture of quantum gravity and give universal arguments towards its proof.
Keywords
quantum gravity; universality; asymptotic safety
Subject
Physical Sciences, Acoustics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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