Volume 114, Number 6, June 2016
|Number of page(s)||6|
|Published online||15 July 2016|
(Anti-) de Sitter electrically charged black-hole solutions in higher-derivative gravity
1 Instituto de Física e Química, Universidade Federal de Itajubá - Itajubá, MG, Brasil
2 Escola de Engenharia de Lorena, Universidade de São Paulo - Lorena, SP, Brasil
3 Faculadade de Engenharia de Guaratinguetá, Universidade Estadual Paulista - Guaratinguetá, SP, Brasil
4 Instituto de Física, Universidade de São Paulo - CP 66318, 05315-970, São Paulo, SP, Brasil
Received: 4 June 2016
Accepted: 1 July 2016
In this paper, static electrically charged black-hole solutions with cosmological constant are investigated in an Einstein-Hilbert theory of gravity with additional quadratic curvature terms. Beside the analytic Schwarzschild (Anti-) de Sitter solutions, non-Schwarzschild (Anti-) de Sitter solutions are also obtained numerically by employing the shooting method. The results show that there exist two groups of asymptotically (Anti-) de Sitter spacetimes for both charged and uncharged black holes. In particular, it was found that for uncharged black holes the first group can be reduced to the Schwarzschild (Anti-) de Sitter solution, while the second group is intrinsically different from a Schwarzschild (Anti-) de Sitter solution even when the charge and the cosmological constant become zero.
PACS: 04.70.Bw – Classical black holes / 04.25.dg – Numerical studies of black holes and black-hole binaries / 04.60.-m – Quantum gravity
© EPLA, 2016
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