Inner horizon instability and the unstable cores of regular black holes
Abstract Regular black holes with nonsingular cores have been considered in several approaches to quantum gravity, and as agnostic frameworks to address the singularity problem and Hawking’s information paradox. While in a recent work we argued that the inner core is destabilized by linear perturbat...
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Online Access: | https://doi.org/10.1007/JHEP05(2021)132 |
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doaj-6af2cb21bea24f068e232b0e9c4d150d2021-05-23T11:06:42ZengSpringerOpenJournal of High Energy Physics1029-84792021-05-012021511610.1007/JHEP05(2021)132Inner horizon instability and the unstable cores of regular black holesRaúl Carballo-Rubio0Francesco Di Filippo1Stefano Liberati2Costantino Pacilio3Matt Visser4Florida Space Institute, University of Central FloridaCenter for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto UniversitySISSA — International School for Advanced StudiesDipartimento di Fisica, “Sapienza” Università di Roma & Sezione INFN Roma1School of Mathematics and Statistics, Victoria University of WellingtonAbstract Regular black holes with nonsingular cores have been considered in several approaches to quantum gravity, and as agnostic frameworks to address the singularity problem and Hawking’s information paradox. While in a recent work we argued that the inner core is destabilized by linear perturbations, opposite claims were raised that regular black holes have in fact stable cores. To reconcile these arguments, we discuss a generalization of the geometrical framework, originally applied to Reissner-Nordtsröm black holes by Ori, and show that regular black holes have an exponentially growing Misner-Sharp mass at the inner horizon. This result can be taken as an indication that stable nonsingular black hole spacetimes are not the definitive endpoint of a quantum gravity regularization mechanism, and that nonperturbative backreation effects must be taken into account in order to provide a consistent description of the quantum-gravitational endpoint of gravitational stellar collapse.https://doi.org/10.1007/JHEP05(2021)132Black HolesSpacetime Singularities |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Raúl Carballo-Rubio Francesco Di Filippo Stefano Liberati Costantino Pacilio Matt Visser |
spellingShingle |
Raúl Carballo-Rubio Francesco Di Filippo Stefano Liberati Costantino Pacilio Matt Visser Inner horizon instability and the unstable cores of regular black holes Journal of High Energy Physics Black Holes Spacetime Singularities |
author_facet |
Raúl Carballo-Rubio Francesco Di Filippo Stefano Liberati Costantino Pacilio Matt Visser |
author_sort |
Raúl Carballo-Rubio |
title |
Inner horizon instability and the unstable cores of regular black holes |
title_short |
Inner horizon instability and the unstable cores of regular black holes |
title_full |
Inner horizon instability and the unstable cores of regular black holes |
title_fullStr |
Inner horizon instability and the unstable cores of regular black holes |
title_full_unstemmed |
Inner horizon instability and the unstable cores of regular black holes |
title_sort |
inner horizon instability and the unstable cores of regular black holes |
publisher |
SpringerOpen |
series |
Journal of High Energy Physics |
issn |
1029-8479 |
publishDate |
2021-05-01 |
description |
Abstract Regular black holes with nonsingular cores have been considered in several approaches to quantum gravity, and as agnostic frameworks to address the singularity problem and Hawking’s information paradox. While in a recent work we argued that the inner core is destabilized by linear perturbations, opposite claims were raised that regular black holes have in fact stable cores. To reconcile these arguments, we discuss a generalization of the geometrical framework, originally applied to Reissner-Nordtsröm black holes by Ori, and show that regular black holes have an exponentially growing Misner-Sharp mass at the inner horizon. This result can be taken as an indication that stable nonsingular black hole spacetimes are not the definitive endpoint of a quantum gravity regularization mechanism, and that nonperturbative backreation effects must be taken into account in order to provide a consistent description of the quantum-gravitational endpoint of gravitational stellar collapse. |
topic |
Black Holes Spacetime Singularities |
url |
https://doi.org/10.1007/JHEP05(2021)132 |
work_keys_str_mv |
AT raulcarballorubio innerhorizoninstabilityandtheunstablecoresofregularblackholes AT francescodifilippo innerhorizoninstabilityandtheunstablecoresofregularblackholes AT stefanoliberati innerhorizoninstabilityandtheunstablecoresofregularblackholes AT costantinopacilio innerhorizoninstabilityandtheunstablecoresofregularblackholes AT mattvisser innerhorizoninstabilityandtheunstablecoresofregularblackholes |
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