Destroying the event horizon of regular black holes

Abstract

Recently, several authors have studied the possibility of overspinning or overcharging an existing black hole to destroy its event horizon and make the central singularity naked. When all the effects are properly taken into account, any attempt to destroy the black hole seems to be doomed to fail, in agreement with the weak cosmic censorship conjecture. In this letter, we study the possibility of destroying the event horizon of regular black holes. These objects have no central singularity and therefore they are not protected by the cosmic censorship hypothesis. Our results strongly support the conclusion that regular black holes can be destroyed. If we believe that the central singularity in astrophysical black holes is solved by quantum gravity effects, we might have a chance to see the black hole's internal region and observe quantum gravity phenomena. As our finding implies the violation of the black hole's area theorem, the collision of two black holes may release an amount of energy exceeding the Hawking bound, which can be experimentally tested by gravitational wave detectors.

4 pages, 2 figures. v2: two references added

References in corpus (7)

• Rotating regular black holes
• Test bodies and naked singularities: is the self-force the cosmic censor?
• Destroying extremal Kerr-Newman black holes with test particles
• Self-force as a cosmic censor
• Evolution of the spin parameter of accreting compact objects with non-Kerr quadrupole moment
• Super-spinning compact objects generated by thick accretion disks
• Spinning super-massive objects in galactic nuclei up to $a_{\ast }>1$

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• Testing the nature of the black hole candidate in GRO J1655-40 with the relativistic precession model
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• Measuring the Kerr spin parameter of a non-Kerr compact object with the continuum-fitting and the iron line methods
• Testing the Bardeen metric with the black hole candidate in Cygnus X-1
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• The higher dimensional Myers-Perry black hole with single rotation always obeys the Cosmic Censorship Conjecture
• Testing cosmic censorship conjecture near extremal black holes with cosmological constants
• Cosmic Censorship and parametrized spinning black-hole geometries
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• Weak cosmic censorship conjecture in Einstein-Born-Infeld black holes
• Static charged dilaton black hole cannot be overcharged by gedanken experiments
• Static charged Gauss-Bonnet black holes cannot be overcharged by the new version of gedanken experiments
• Investigating the gedanken experiment to destroy the event horizon of a regular black hole
• Six-dimensional Myers-Perry rotating black hole cannot be overspun
• Geodesic Structure of the Quantum-Corrected Schwarzschild Black Hole Surrounded by Quintessence
• Testing the Kerr nature of black hole candidates using iron line reverberation mapping in the CPR framework
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• Can we observationally test the weak cosmic censorship conjecture?
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• Testing the weak cosmic censorship conjecture for a Reissner-Nordström-de Sitter black hole surrounded by perfect fluid dark matter
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• Disclosing connections between black holes and naked singularities: Horizon remnants, Killing throats and bottlenecks
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• A general study of regular and singular black hole solutions in Einstein's conformal gravity
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• Extending the weak cosmic censorship conjecture to the charged Buchdahl star by employing the gedanken experiments
• Overcharging process around a magnetized black hole: Can the backreaction effect of magnetic field restore cosmic censorship conjecture?
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• The Weak Cosmic Censorship Conjecture in Hairy Kerr Black Holes
• Weak cosmic censorship conjecture in higher-dimensional black holes with nonlinear electrodynamic sources
• Repulsive gravity effects in horizon formation. Horizon remnants in naked singularities
• The Interiors of Singularity-Free Rotating Black Holes
• Black hole-naked singularity dualism and the repulsion of two Kerr black holes due to spin-spin interaction
• Splitting the Echoes of Black Holes in Einstein-nonlinear Electrodynamic Theories
• Overcharging a nonsingular black hole in general relativity: the nonlinear electrodynamic field effects
• Imaging the destruction of a rotating regular black hole
• Kerr-de Sitter Black Holes: Quantum Aspects and Cosmic Censorship Conjecture