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arXiv · 0808.3308

Generalized Second Law of Thermodynamics in Extended Theories of Gravity

M. Akbar
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Abstract

By employing the general expression of temperature $T_{h}=|κ|/2π= \frac{1}{2π\tilde{r}_{A}}(1-\frac{\dot{\tilde{r}}_{A}}{2H\tilde{r}_{A}})$ associated with the apparent horizon of a FRW universe and assuming a region of FRW universe enclosed by the apparent horizon as a thermal system in equilibrium, we are able to show that the generalized second law of thermodynamics holds in Gauss-Bonnet gravity and in more general Lovelock gravity.

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M. Akbar. 2008-08-25. Generalized Second Law of Thermodynamics in Extended Theories of Gravity. https://doi.org/10.1007/s10773-009-0056-4

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