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Article

Towards Black-Hole Singularity-Resolution in the Lorentzian Gravitational Path Integral

1
Rudolf Peierls Centre for Theoretical Physics, University of Oxford, Keble Road 1, Oxford OX1 3NP, UK
2
CP3-Origins, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark
*
Author to whom correspondence should be addressed.
Academic Editors: Jerzy Kowalski-Glikman and Tim R. Morris
Universe 2021, 7(3), 48; https://doi.org/10.3390/universe7030048
Received: 4 January 2021 / Revised: 8 February 2021 / Accepted: 22 February 2021 / Published: 27 February 2021
(This article belongs to the Special Issue Asymptotic Safety in Quantum Gravity)
Quantum gravity is expected to resolve the singularities of classical general relativity. Based on destructive interference of singular spacetime-configurations in the path integral, we find that higher-order curvature terms may allow to resolve black-hole singularities both in the spherically symmetric and axisymmetric case. In contrast, the Einstein action does not provide a dynamical mechanism for singularity-resolution through destructive interference of these configurations. View Full-Text
Keywords: quantum gravity; black holes; Lorentzian path integral quantum gravity; black holes; Lorentzian path integral
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MDPI and ACS Style

Borissova, J.N.; Eichhorn, A. Towards Black-Hole Singularity-Resolution in the Lorentzian Gravitational Path Integral. Universe 2021, 7, 48. https://doi.org/10.3390/universe7030048

AMA Style

Borissova JN, Eichhorn A. Towards Black-Hole Singularity-Resolution in the Lorentzian Gravitational Path Integral. Universe. 2021; 7(3):48. https://doi.org/10.3390/universe7030048

Chicago/Turabian Style

Borissova, Johanna N., and Astrid Eichhorn. 2021. "Towards Black-Hole Singularity-Resolution in the Lorentzian Gravitational Path Integral" Universe 7, no. 3: 48. https://doi.org/10.3390/universe7030048

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