Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

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)

How to cite: Martini, R.; Ugolotti, A.; Zanusso, O. The Search for the Universality Class of Metric Quantum Gravity. Preprints 2021, 2021040660 (doi: 10.20944/preprints202104.0660.v1). Martini, R.; Ugolotti, A.; Zanusso, O. The Search for the Universality Class of Metric Quantum Gravity. Preprints 2021, 2021040660 (doi: 10.20944/preprints202104.0660.v1).

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.

Subject Areas

quantum gravity; universality; asymptotic safety

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