Weak cosmic censorship conjecture in the nonlinear electrodynamics black hole under the charged scalar field

Bai, Tianhao; Hong, Wei; Mu, Benrong; Tao, Jun

doi:10.1088/1572-9494/ab544b

Cited by 23 publications

(13 citation statements)

References 54 publications

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“…After that, many works based on this new experiment [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41] show that WCCC is applicable for other kinds of black holes. In addition, more study on the test for WCCC can be found in [42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58][59][60].…”

Section: Introductionmentioning

confidence: 99%

New Gedanken experiment on RN-AdS black holes surrounded by quintessence

Tao

2022

Eur. Phys. J. C

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In this paper, we use the new version of Gedanken experiment to investigate the weak cosmic censorship conjecture(WCCC) for RN-AdS black holes surrounded by quintessence. The process of matter fields falling into the black hole can be regarded as a dynamic process. Since the perturbation of matter fields doesn’t affect the spacetime geometry, we propose the stability condition and assume the process of matter fields falling into the black hole satisfies the null energy condition. Based on the stability condition and the null energy condition, the first-order and second-order perturbation inequalities are derived. As a result, we show that the WCCC for RN-AdS black holes surrounded by quintessence cannot be violated under the second-order approximation of matter fields perturbation.

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Section: Introductionmentioning

confidence: 99%

New Gedanken experiment on RN-AdS black holes surrounded by quintessence

Tao

2022

Eur. Phys. J. C

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“…Following Wald various thought experiments were constructed to test the validity of cosmic censorship. These thought experiments involve perturbations of the black holes with both test particles [4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24], and fields [25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43]. There were also attempts to incorporate quantum effects [44,45,46,47,48,49,50], and test the validity of cosmic censorship for asymptotically anti-de Sitter cases [51,52,…”

Section: Introductionmentioning

confidence: 99%

Cosmic censorship, massless fermionic test fields, and absorption probabilities

Düztaş

2021

Preprint

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In the conventional approach, fermionic test fields lead to a generic overspinning of black holes resulting in the formation of naked singularities. The absorption of the fermionic test fields with arbitrarily low frequencies is allowed for which the contribution to the angular momentum parameter of the spacetime diverges. Recently we have suggested a more subtle treatment of the problem considering the fact that only the fraction of the test fields that is absorbed by the black hole contributes to the space-time parameters. Here, we re-consider the interaction of massless spin (1/2) fields with Kerr and Kerr-Newman black holes, adapting this new approach. We show that the drastic divergence problem disappears when one incorporates the absorption probabilities. Still, there exists a range of parameters for the test fields that can lead to overspinning. We employ backreaction effects due to the self-energy of the test fields which fixes the overspinning problem for fields with relatively large amplitudes, and renders it non-generic for smaller amplitudes. This non-generic overspinning appears likely to be fixed by alternative semi-classical and quantum effects.

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“…Following Wald various thought experiments were constructed to test the validity of cosmic censorship. These thought experiments involve perturbations of the black holes with both test particles , and fields [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43]. There were also attempts to incorporate quantum effects [44][45][46][47][48][49][50], and test the validity of cosmic censorship for asymptotically anti-de Sitter cases [51][52][53][54][55][56][57][58].…”

Section: Introductionmentioning

confidence: 99%

Cosmic censorship, massless fermionic test fields, and absorption probabilities

Düztaş

2021

Eur. Phys. J. C

View full text Add to dashboard Cite

In the conventional approach, fermionic test fields lead to a generic overspinning of black holes resulting in the formation of naked singularities. The absorption of the fermionic test fields with arbitrarily low frequencies is allowed for which the contribution to the angular momentum parameter of the space-time diverges. Recently we have suggested a more subtle treatment of the problem considering the fact that only the fraction of the test fields that is absorbed by the black hole contributes to the space-time parameters. Here, we re-consider the interaction of massless spin (1/2) fields with Kerr and Kerr–Newman black holes, adapting this new approach. We show that the drastic divergence problem disappears when one incorporates the absorption probabilities. Still, there exists a range of parameters for the test fields that can lead to overspinning. We employ backreaction effects due to the self-energy of the test fields which fixes the overspinning problem for fields with relatively large amplitudes, and renders it non-generic for smaller amplitudes. This non-generic overspinning appears likely to be fixed by alternative semi-classical and quantum effects.

show abstract

Weak cosmic censorship conjecture in the nonlinear electrodynamics black hole under the charged scalar field

Cited by 23 publications

References 54 publications

New Gedanken experiment on RN-AdS black holes surrounded by quintessence

New Gedanken experiment on RN-AdS black holes surrounded by quintessence

Cosmic censorship, massless fermionic test fields, and absorption probabilities

Cosmic censorship, massless fermionic test fields, and absorption probabilities

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