Accelerating black hole chemistry

Gregory, Ruth; Scoins, Andrew

doi:10.1016/j.physletb.2019.06.071

Cited by 51 publications

(40 citation statements)

References 56 publications

(98 reference statements)

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“…In contrast, here we find that when accelerated black holes are critical, their thermodynamic quantities can be obtained as a smooth (and finite) limit of the original thermodynamic quantities for the accelerated black holes [37,38]. It then follows that the reverse isoperimetric conjecture, shown to be valid for the accelerated black holes [42], remains true also for the critical black holes.…”

Section: Introductionmentioning

confidence: 51%

“…The thermodynamic properties of black holes in AdS have been known for a while [7,[32][33][34][35][36], however the thermodynamics of accelerating black holes have only more recently been elucidated [37][38][39][40][41][42][43][44], and in the context of thermodynamics, we observe these accelerated critical solutions to behave differently to the original ultraspinning black hole. For the ultra-spinning case, the thermodynamic quantities cannot simply be obtained by taking the a → limit of the thermodynamic quantities of Kerr-AdS black holes, as these diverge in the limit a → .…”

Section: Introductionmentioning

confidence: 76%

“…The fact that the thermodynamic quantities of the accelerated black holes obey the Reverse Isoperimetric Inequality [14] (roughly, a statement that black holes like to be round) has been shown in [42]. Let us repeat here the corresponding argument.…”

Section: Reverse Isoperimetric Inequalitymentioning

confidence: 92%

“…where the enthalpy is A description of how the potentials were obtained, using both conformal and holographic techniques is given in Anabalon et al [41]. Despite the fact that the tensions µ ± are natural variables, and indeed correspond to physical objects (cosmic strings emerging from the event horizon [50,56]), expressing the charges and potentials in terms of extensive variables [42] reveals that the thermodynamics is more naturally delineated into an overall and differential conical deficit, ∆ and C respectively:…”

Section: Thermodynamics Of Accelerated Black Holesmentioning

confidence: 99%

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Are “Superentropic” black holes superentropic?

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Gregory

et al. 2020

J. High Energ. Phys.

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We study a critical limit in which asymptotically-AdS black holes develop maximal conical deficits and their horizons become non-compact. When applied to stationary rotating black holes this limit coincides with the "ultraspinning limit" and yields the Superentropic black holes whose entropy was derived recently and found to exceed the maximal possible bound imposed by the Reverse Isoperimetric Inequality [1,2]. To gain more insight into this peculiar result, we study this limit in the context of accelerated AdS black holes that have unequal deficits along the polar axes, hence the maximal deficit need not appear on both poles simultaneously. Surprisingly, we find that in the presence of acceleration, the critical limit becomes smooth, and is obtained simply by taking various upper bounds in the parameter space that we elucidate. The Critical black holes thus obtained have many common features with Superentropic black holes, but are manifestly not superentropic. This raises a concern as to whether Superentropic black holes actually are superentropic 1 . We argue that this may not be so and that the original conclusion is likely attributed to the degeneracy of the resulting first law.Keywords: black hole thermodynamics, accelerated black holes, reverse isoperimetric inequality 1 We use the upper case Superentropic to indicate the specific black hole solution, and lower case superentropic to indicate the property that entropy violates the Reverse Isoperimetric Inequality.

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Section: Introductionmentioning

confidence: 51%

Section: Introductionmentioning

confidence: 76%

Section: Reverse Isoperimetric Inequalitymentioning

confidence: 92%

Section: Thermodynamics Of Accelerated Black Holesmentioning

confidence: 99%

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Are “Superentropic” black holes superentropic?

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Gregory

et al. 2020

J. High Energ. Phys.

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“…for accelerating f (R) black holes, where A is the horizon area. The equality is saturated if C = 0, and reduces to that in Einstein gravity [50] if η = 1. A larger deficit yields a smaller ∆, and therefore a smaller entropy with respect to the volume, tending to make the black holes sub-entropic.…”

Section: B Thermodynamic First Law Of Slowly Accelerating F (R) Ads mentioning

confidence: 97%

Charged accelerating black hole in f(R) gravity

Zhang

Mann

2019

Phys. Rev. D

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We obtain a charged accelerating AdS black hole solution in f (R) gravity and investigate its thermodynamic behaviour. We consider low-acceleration black holes that do not have an acceleration horizon and obtain the first law of thermodynamics for them. We further study the parameter space of charged slowly accelerating f (R) AdS black holes before investigating the behaviour of the free energy in both the canonical and grand canonical ensembles. We find a generalization of the reverse isoperimetric inequality, applicable to black holes in f (R) gravity, that indicates these black holes can become super-entropic relative to their counterparts in Einstein gravity.

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Charged Accelerating BTZ Black Holes

Panah

2023

Fortschritte der Physik

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In this paper, general uncharged accelerating BTZ black hole solutions are extracted and studied some of their properties. The analysis shows that spacetime's asymptotic behavior depends on four parameters: the cosmological constant, mass, acceleration, and topological constant. Then, the temperature of these black holes are studied and it is found that the temperature is always positive for AdS spacetime. Next, the study is extended for extracting charged accelerating BTZ black hole solutions in the presence of a nonlinear electrodynamics field known as conformally invariant Maxwell. The findings indicate a coupling between the electrical charge and other quantities of the accelerating BTZ black holes. The asymptotic behavior of charged accelerating BTZ black holes depends on five parameters: the cosmological constant, the electrical charge, mass, the acceleration parameter, and the topological constant. Then, the effects of charge, acceleration parameters, and the topological constant on the root of these black holes are studied. Finally, the temperature of these black holes in AdS spacetime is investigated. For these black holes, the temperature depends on the electrical charge, accelerating parameter, and the cosmological constant. The analysis indicates that the temperature of charged accelerating BTZ AdS black holes is always positive.

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Accelerating black hole chemistry

Cited by 51 publications

References 56 publications

Are “Superentropic” black holes superentropic?

Are “Superentropic” black holes superentropic?

Charged accelerating black hole in f(R) gravity

Charged Accelerating BTZ Black Holes

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