Thermodynamics and P-v criticality of Bardeen-AdS black hole in 4D Einstein-Gauss-Bonnet gravity

Singh, Dharm Veer; Siwach, Sanjay

doi:10.1016/j.physletb.2020.135658

Cited by 109 publications

(73 citation statements)

References 29 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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“…Finally, Eqs. (8)(9)(10)(11) are invariant under the transformation E → −E, σ → −σ . We observe that in the absence of the electric field, i.e., with E(r ) = 0, the above expression reduces to the standard relation for isotropic perfect fluid in 4D EGB gravity [46].…”

Section: Basic Construction Of Charged Stellar Model In 4 D Egb Gravitymentioning

confidence: 99%

“…Under the transformation ( 14), we are able to express the components of the field Eqs. (8)(9)(10)(11), which yield…”

Section: Basic Construction Of Charged Stellar Model In 4 D Egb Gravitymentioning

confidence: 99%

“…This idea evoked great interest amongst researchers and was extensively investigated in many configurations such as spherically symmetric and static black hole solutions including their physical properties [8][9][10][11][12][13][14], charged black hole [15,16], black holes coupled with magnetic charge and nonlinear electrodynamics [17][18][19]. In this framework the strong/ weak gravitational lensing by black holes [20][21][22], quasi-normal modes [23][24][25], black hole shadows [26][27][28], wormholes and thin-shell wormholes [29,30] and some other relevant works have also been investigated in [31].…”

Section: Introductionmentioning

confidence: 99%

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Charged stars in 4D Einstein–Gauss–Bonnet gravity

2021

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An alternative gravity theory that has attracted considerable attention recently is the novel four-dimensional Einstein–Gauss–Bonnet (4EGB) gravity. This idea was proposed to bypass the Lovelock’s theorem and to permit nontrivial higher curvature effects on the four-dimensional local gravity. In this approach, the Gauss–Bonnet (GB) coupling constant $$\alpha $$ α is rescaled by a factor of $$\alpha /(D -4)$$ α / ( D - 4 ) in D dimensions and taking the limit $$D \rightarrow 4$$ D → 4 . In this article, we analyze the effects of charge on static compact stars in the regularized 4D EGB gravity theory. Two classes of new exact solutions are found for a particular choice of the gravitational potential and assuming a relationship between the electric field intensity and the spatial potential. A graphical analysis indicates that the matter and electromagnetic variables are well behaved for specific values of the parameter space. Finally, based on physical grounds appropriate bounds on the model parameters we show that compact objects with the value of adiabatic index $$\gamma $$ γ is consistent with expectations.

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“…For instance, charged and rotating 4D EGB BH solutions [42][43][44], BH solutions in Lovelock gravity [45,46], BH solutions surrounded by clouds of strings [47], Bardeen BHs [48], Hayward BHs [49], spherically symmetric and thin shell wormhole solutions [50,51] and relativistic stars [52] have been extensively studied. Also, a large number of interesting aspects of the theory including geodesic motion and shadow [53][54][55][56], strong and weak gravitational lensing [57][58][59][60], quasinormal modes of BHs [61][62][63][64][65], instability of (A)dS BHs [66][67][68], thermodynamics and phase transition [69][70][71][72], Hawking radiation [73,74] and new quark stars [75,76] have also been stud-ied. For further references on 4D EGB gravity see [77][78][79][80][81][82][83][84][85][86][87]…”

Section: Introductionmentioning

confidence: 99%

Thin accretion disks around rotating black holes in 4D Einstein–Gauss–Bonnet gravity

Heydari-Fard

Sepangi

2021

Eur. Phys. J. C

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Recently, Kumar and Ghosh have derived Kerr-like rotating black hole solutions in the framework of four-dimensional Einstein–Gauss–Bonnet theory of gravity and investigated the black hole shadow. Using the steady-state Novikov–Thorne model, we study thin accretion disk processes for such rotating black holes including the energy flux, temperature distribution, emission spectrum, energy conversion efficiency as well as the radius of the innermost stable circular orbit. We also study the effects of the Gauss–Bonnet coupling parameter $$\alpha $$ α on these quantities. The results are compared to slowly rotating relativistic Kerr black holes which show that for a positive Gauss–Bonnet coupling, thin accretion disks around rotating black holes in four-dimensional Einstein–Gauss–Bonnet gravity are hotter and more efficient than that for Kerr black holes with the same rotation parameter a, while for a negative coupling they are cooler and less efficient. Thus the accretion disk processes may be considered as tools for testing Einstein–Gauss–Bonnet gravity using astrophysical observations.

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Thermodynamics and P-v criticality of Bardeen-AdS black hole in 4D Einstein-Gauss-Bonnet gravity

Cited by 109 publications

References 29 publications

Holographic superconductors in 4D Einstein-Gauss-Bonnet gravity

Holographic superconductors in 4D Einstein-Gauss-Bonnet gravity

Charged stars in 4D Einstein–Gauss–Bonnet gravity

Thin accretion disks around rotating black holes in 4D Einstein–Gauss–Bonnet gravity

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