Rastall理论中平坦FLRW宇宙的热力学
Thermodynamics of flat FLRW universe in Rastall Theory
摘要:
在本文中,在提到拉斯特尔理论,我们解决它的一些宇宙学后果。此外,考虑到克劳修斯关系,使用Rastall理论中的Friedman方程和Cai-Kim温度,我们得到了平坦FLRW宇宙的表观视界熵的关系。此外,我们还对所得到的视界熵的关系式施加了熵为正的条件,以找到对Rastall参数的一些约束。此外,我们还研究了热力学第二定律和广义热力学第二定律热力学定律。本文还讨论了具有常状态参数的受控理想流体的结果,以帮助我们熟悉Rastall理论。
英文摘要:
In this paper, after referring to the Rastall theory, we address some of its cosmological consequences. Moreover, bearing the Clausius relation in mind, using Friedman equations in Rastall theory and the Cai-Kim temperature, we obtain a relation for the apparent horizon entropy of a flat FLRW universe. In addition, we impose the entropy positivity condition on the obtained relation for the horizon entropy, to find some constraints on the Rastall parameters. Moreover, we investigate the second and generalized second laws of thermodynamics. The results of considering a dominated prefect fluid with constant state parameter are also addressed helping us familiarize with the Rastall theory.
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