Thermodynamic approach to field equations in Lovelock gravity and f(R) gravity revisited
arXiv:1407.1698 · doi:10.1142/S021827181450093X
Abstract
The first law of thermodynamics at black hole horizons is known to be obtainable from the gravitational field equations. A recent study claims that the contributions at inner horizons should be considered in order to give the conventional first law of black hole thermodynamics. Following this method, we revisit the thermodynamic aspects of field equations in the Lovelock gravity and f(R) gravity by focusing on two typical classes of charged black holes in the two theories.
10 pages, no figures; v2: clarifications and references added, to appear in Int. J. Mod. Phys. D
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