Hayward black holes in Einstein–Gauss–Bonnet gravity

Kumar, Arun; Singh, Dharm Veer; Ghosh, Sushant G.

doi:10.1016/j.aop.2020.168214

Cited by 45 publications

(27 citation statements)

References 56 publications

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“…Interestingly, the solution of the same form has been presented in the conformal anomaly inspired gravity [40,41]. Along this line, the Einstein-Gauss-Bonnet gravity in the 4D spacetime has been explored extensively on various aspects, including the exact solutions [42][43][44][45][46][47][48][49][50][51][52][53][54][55], the quasinormal modes and stability [56][57][58][59][60][61][62][63][64][65][66][67], the observable shadows [68][69][70][71][72][73], the geodesics and gravitational lensing [74][75][76][77][78], and the thermodynamics and cosmic censorship conjecture [79][80][81][82][83][84][85][86].…”

Section: Jhep12(2020)192mentioning

confidence: 99%

Holographic superconductors in 4D Einstein-Gauss-Bonnet gravity

Qiao

Ouyang

Wang

et al. 2020

J. High Energ. Phys.

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We investigate the neutral AdS black-hole solution in the consistent D → 4 Einstein-Gauss-Bonnet gravity proposed in [K. Aoki, M.A. Gorji, and S. Mukohyama, Phys. Lett. B810 (2020) 135843] and construct the gravity duals of (2 + 1)-dimensional superconductors with Gauss-Bonnet corrections in the probe limit. We find that the curvature correction has a more subtle effect on the scalar condensates in the s-wave superconductor in (2 + 1)-dimensions, which is different from the finding in the higher-dimensional superconductors that the higher curvature correction makes the scalar hair more difficult to be developed in the full parameter space. However, in the p-wave case, we observe that the higher curvature correction always makes it harder for the vector condensates to form in various dimensions. Moreover, we note that the higher curvature correction results in the larger deviation from the expected relation in the gap frequency ωg/Tc ≈ 8 in both (2 + 1)-dimensional s-wave and p-wave models.

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Section: Jhep12(2020)192mentioning

confidence: 99%

Holographic superconductors in 4D Einstein-Gauss-Bonnet gravity

Qiao

Ouyang

Wang

et al. 2020

J. High Energ. Phys.

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“…Many properties of the spacetime (1) have been studied recently in a number of papers, for instance, in Refs. [48][49][50][51][52][53][54][55][56][57][58][59][60][61][62][63].…”

Section: The Spacetimementioning

confidence: 99%

4D Einstein-Gauss-Bonnet gravity: Massless particles and absorption of planar spin-0 waves

2020

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We investigate the absorption cross section of planar scalar massless waves impinging on spherically symmetric black holes which are solutions of the novel 4D Einstein-Gauss-Bonnet theory of gravity. Besides the mass of the black hole, the solution depends also on the Gauss-Bonnet constant coupling. Using the partial waves approach, we show that the absorption cross section depends on the Gauss-Bonnet coupling constant. Our numerical results present excellent agreement with the low-and high-frequency approximations, including the so-called sinc approximation.

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“…There are a lot of following papers inspired by the research of Glavan and Lin, such as the shadow and inner most stable circular orbits of black hole in the EGB gravity [4,[6][7][8], thin accretion disk around four-dimensional EGB black holes [9], spinning test particle in four-dimensional EGB black hole [10], gravitational lensing and bending of light [11][12][13], black hole as particle accelerator [14], black hole thermodynamics and phase transition [15][16][17][18][19], quasinormal modes and strong cosmic censorship [20][21][22], scalar field in 4D EGB black holes [23], cosmology in the EGB gravity [24], compact objects and their properties [25], the eikonal gravitational instability of asymptotically flat and (A)dS black holes [26], greybody factor and power spectra of the Hawking radiation [27,28], other black hole solutions [29][30][31][32][33][34][35][36], and related topics about higher-derivative gravity in two dimensions [37,38].…”

Section: Introductionmentioning

confidence: 99%

Weak cosmic censorship conjecture for the novel 4D charged Einstein–Gauss–Bonnet black hole with test scalar field and particle

et al. 2020

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Recent researches of the novel 4D Einstein–Gauss–Bonnet (EGB) gravity have attracted great attention. In this paper, we investigate the validity of the weak cosmic censorship conjecture for a novel 4D charged EGB black hole with test charged scalar field and test charged particle respectively. For the test charged field scattering process, we find that both extremal and near-extremal black holes cannot be overcharged. For the test charged particle injection, to first order, an extremal black hole cannot be overcharged while a near-extremal 4D charged EGB black hole can be destroyed. To second order, however, both extremal and near-extremal 4D charged EGB black holes can be overcharged for positive Gauss–Bonnet coupling constant; for negative Gauss–Bonnet coupling constant, an extremal black hole cannot be overcharged and the validity of the weak cosmic censorship conjecture for a near-extremal black hole depends on the Gauss–Bonnet coupling constant.

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Hayward black holes in Einstein–Gauss–Bonnet gravity

Cited by 45 publications

References 56 publications

Holographic superconductors in 4D Einstein-Gauss-Bonnet gravity

Holographic superconductors in 4D Einstein-Gauss-Bonnet gravity

4D Einstein-Gauss-Bonnet gravity: Massless particles and absorption of planar spin-0 waves

Weak cosmic censorship conjecture for the novel 4D charged Einstein–Gauss–Bonnet black hole with test scalar field and particle

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