Weak cosmic censorship conjecture is not violated for a rotating linear dilaton black hole

Qu, Fei; Yang, Si-Jiang; Wang, Zhi; Ren, Ji-Rong

doi:10.48550/arxiv.2008.09950

Cited by 3 publications

(3 citation statements)

References 38 publications

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“…Recently, by taking into account the second-order perturbations that comes from the matter fields, Sorce and Wald showed that the Kerr-Newman black hole cannot be destroyed [34]. Subsequent systematic works further support the result that the event horizon cannot be destroyed by this kind of gedanken experiment [35][36][37][38][39][40][41].…”

Section: Introductionmentioning

confidence: 94%

Destroying the event horizon of a nonsingular rotating quantum-corrected black hole

Yang

Zhang

Wei

et al. 2022

J. High Energ. Phys.

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The destruction of the event horizon of a nonsingular black hole, which is not prevented by the weak cosmic censorship conjecture, might provide us the possibility to access quantum regime of gravity inside black hole. We investigate the possibility of overspinning a nonsingular rotating quantum-corrected black hole by a test particle and a scalar field in this paper, and analyse the effect of the quantum parameter on the destruction of the event horizon. For the test particle injection, both extremal and near-extremal black holes cannot be overspun due to the existence of the quantum parameter. And the larger the quantum parameter the harder the black hole to be overspun. It seems that the quantum parameter acts as a protector to prevent the black hole to be destroyed. However, for the test scalar field scattering, both extremal and near-extremal black holes can be destroyed. Due to the loop quantum gravity correction, the angular velocity of the extremal black hole shifts from that of the extremal Kerr black hole. This provides a small range of wave modes to destroy the event horizon of the quantum-corrected black hole.

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Section: Introductionmentioning

confidence: 94%

Destroying the event horizon of a nonsingular rotating quantum-corrected black hole

Yang

Zhang

Wei

et al. 2022

J. High Energ. Phys.

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“…Recently, a possible connection between weak cosmic censorship conjecture (WCCC) [1][2][3][4][5][6] and weak gravity conjecture (WGC) [7][8][9] was proposed in [10]. It is the statement that if the weak gravity conjecture holds, a class of counterexamples [11] to cosmic censorship in Einstein-Maxwell theory with negative cosmological constant can be removed.…”

Section: Introductionsmentioning

confidence: 99%

Weak cosmic censorship with $SU(2)$ gauge field and bound on charge-to-mass ratio

Yan¹,

Cui²,

Wang³

2022

Preprint

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We numerically construct the stationary solutions of SU (2) Einstein-Yang-Mills theory in four dimensional anti-de Sitter spacetime. When the t component of SU (2) gauge field is taken to the only nonzero component, we construct a class of counterexamples to the weak cosmic censorship conjecture in Einstein-Maxwell theory. However, including a nonzero φ component of SU (2) gauge field, we can argue that there is a minimum value q W , when the charge carried by the φ component is larger than this minimum value, for sufficiently large boundary electric amplitude a, the original counterexamples can be removed and cosmic censorship is preserved.

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“…They demonstrated that the event horizons of these black holes can be destroyed by test particles, and claimed that the destruction of such event horizons might provide us the possibility to access regions inside black hole event horizons [14]. However, using the new version of gedanken experiment proposed by Sorce and Wald [15], when the second-order approximation of the perturbation that comes from the matter fields is taken into account, Jiang and Gao showed that a static charged regular black hole coupled to nonlinear electromagnetical field cannot be overcharged [16], and many works have been done to destroy the event horizons of black holes using this new version of gedanken experiment [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Overcharging a Reissner-Nordström Taub-NUT regular black hole

Feng,

Yang,

Tan

et al. 2020

Preprint

Self Cite

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The destruction of a regular black hole event horizon might provide us the possibility to access regions inside black hole event horizon. This paper investigates the possibility of overcharging a charged Taub-NUT regular black hole via the scattering of a charged field and the absorption of a charged particle, respectively. For the charged scalar field scattering, both the near-extremal and extremal charged Taub-NUT regular black holes cannot be overcharged. For the test charged particle absorption, the result shows that the event horizon of the extremal charged Taub-NUT regular black hole still exists while the event horizon of the near-extremal one can be destroyed.However, if the charge and energy cross the event horizon in a continuous path, the near-extremal charged Taub-NUT regular black hole might not be overcharged.

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Weak cosmic censorship conjecture is not violated for a rotating linear dilaton black hole

Cited by 3 publications

References 38 publications

Destroying the event horizon of a nonsingular rotating quantum-corrected black hole

Destroying the event horizon of a nonsingular rotating quantum-corrected black hole

Weak cosmic censorship with $SU(2)$ gauge field and bound on charge-to-mass ratio

Overcharging a Reissner-Nordström Taub-NUT regular black hole

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