Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Renormalizable and Unitary Lorentz Invariant Model of Quantum Gravity

Version 1 : Received: 27 September 2021 / Approved: 28 September 2021 / Online: 28 September 2021 (10:39:47 CEST)

How to cite: Larin, S.A. Renormalizable and Unitary Lorentz Invariant Model of Quantum Gravity. Preprints 2021, 2021090462 (doi: 10.20944/preprints202109.0462.v1). Larin, S.A. Renormalizable and Unitary Lorentz Invariant Model of Quantum Gravity. Preprints 2021, 2021090462 (doi: 10.20944/preprints202109.0462.v1).

Abstract

We analyze the R + R2 model of quantum gravity where terms quadratic in the curvature tensor are added to the General Relativity action. This model was recently proved to be a self-consistent quantum theory of gravitation, being both renormalizable and unitary. The model can be made practically indistinguishable from General Relativity at astrophysical and cosmological scales by the proper choice of parameters.

Keywords

modified theories of gravity; renormalizability; unitarity; astrophysical and cosmological scales

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