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arXiv 0808.3308gr-qc
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广义引力理论中的广义热力学第二定律

Generalized Second Law of Thermodynamics in Extended Theories of Gravity

M. Akbar

摘要:

利用FRW宇宙的视视界温度的一般表达式$T_{h}=|κ|/2π= \frac{1}{2π\tilde{r}_{A}}(1-\frac{\dot{\tilde{r}}_{A}}{2H\tilde{r}_{A}})$,并假设FRW宇宙中被视视界包围的区域是一个平衡的热系统,我们能够证明广义热力学第二定律在Gauss-Bonnet引力和更一般的Lovelock引力中成立。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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