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arXiv · 1106.3149

Entropy Balance Equation of Spacetime Thermodynamics in f(R) Gravity

Yuki Yokokura
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Abstract

We study spacetime thermodynamics for non-equilibrium processes. We first generalize the formulation of spacetime thermodynamics by using an observer outside the horizon. Then we construct the entropy balance equation of spacetime thermodynamics for non-equilibrium processes in f(R) gravity. The coefficients of the expansion and shear terms are equal to the viscosities of the black hole membrane paradigm, and a new entropy production term appears.

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Yuki Yokokura. 2011-06-16. Entropy Balance Equation of Spacetime Thermodynamics in f(R) Gravity. https://doi.org/10.1142/s0217751x12501606

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