Entropy of nonlinear black holes in quadratic gravity

Details Entropy of nonlinear black holes in quadratic gravity Entropy of nonlinear black holes in quadratic gravity

2008-02-27

arxiv.org/abs/0802.4063v1

ActaPhys.Polon.B39:3-22,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Scientific paper

Employing the Noether charge technique and Visser's Euclidean approach the entropy of the nonlinear black hole described by the perturbative solution of the system of coupled equations of the quadratic gravity and nonlinear electrodynamics is constructed. The solution is parametrized by the exact location of the event horizon and charge. Special emphasis in put on the extremal configuration. Consequences of the second choice of the boundary conditions, in which the solution is paramerized by the charge and the total mass as seen by a distant observer is briefly examined.

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