On the gravitational entropy of accelerating black holes
Aug 16, 201924 pages
Published in:
- Int.J.Mod.Phys.D 29 (2020) 05, 2050034
- Published: Mar 24, 2020
e-Print:
- 1908.06763 [gr-qc]
DOI:
- 10.1142/S0218271820500340 (publication)
View in:
Citations per year
Abstract: (WSP)
In this paper, we have examined the validity of a proposed definition of gravitational entropy in the context of accelerating black hole solutions of the Einstein field equations, which represent the realistic black hole solutions. We have adopted a phenomenological approach proposed in Rudjord et al. [Phys. Scr. 77, 055901 (2008)] and expanded by Romero et al. [Int. J. Theor. Phys. 51, 925 (2012)], in which the Weyl curvature hypothesis is tested against the expressions for the gravitational entropy. Considering the C-metric for the accelerating black holes, we have evaluated the gravitational entropy and the corresponding entropy density for four different types of black holes, namely, nonrotating black hole, nonrotating charged black hole, rotating black hole and rotating charged black hole. We end up by discussing the merits of such an analysis and the possible reason of failure in the particular case of rotating charged black hole and comment on the possible resolution of the problem.Note:
- 17 pages, 18 figures
- Accelerating Black holes
- Gravitational entropy
- accelerating black holes
- gravitation: entropy
- black hole: charge
- black hole: rotation
- entropy: density
- Einstein equation: solution
- tensor: Weyl
- resolution
References(25)
Figures(18)
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