Gauss-Bonnet and Lovelock Gravities and the Generalized Second Law of Thermodynamics |
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Authors: | M. Akbar Asghar Qadir |
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Affiliation: | Centre for Advanced Mathematics and Physics, National University of Sciences and Technology, Peshawar Road, Rawalpindi, PakistanKavli Institute for Theoretical Physics, Chinese Academy of Sciences, Beijing 100190 |
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Abstract: | It has been shown [Chin.Phys.Lett.25(2008)4199] that the generalized second law of thermodynamics holds in Einstein gravity. Here we extend this procedure for Gauss--Bonnet and Lovelock gravities. It is shown that by employing the general expression for temperature associated with the apparent horizon of a Friedman-Robertson-Walker (FRW) universe and assuming Tm=bTh, we are able to construct conditions for which the generalized second law holds in Gauss-Bonnet and Lovelock gravities, where Tm and Th are the temperatures of the source and the horizon respectively. |
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Keywords: | 04.70.Dy 97.60.Lf |
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