VISCOUS DARK ENERGY AND GENERALIZED SECOND LAW OF THERMODYNAMICS

被引：46
作者：
Setare, M. R. [1 ,2 ]
Sheykhi, A. [2 ,3 ]
机构：
[1] Payame Noor Univ, Dept Sci, Bijar, Iran
[2] RIAAM, Maragha, Iran
[3] Shahid Bahonar Univ, Dept Phys, Kerman, Iran
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2010年 / 19卷 / 07期
关键词：
Viscous dark energy; thermodynamics; generalized second law; MICROWAVE-ANISOTROPY-PROBE; EQUATION-OF-STATE; WMAP OBSERVATIONS; APPARENT HORIZON; QUINTOM MODEL; COSMOLOGICAL CONSEQUENCES; ACCELERATING UNIVERSE; FRIEDMANN EQUATION; SCALING SOLUTIONS; CARDY FORMULA;
D O I：
10.1142/S0218271810017202
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We examine the validity of the generalized second law of thermodynamics in a non-flat universe in the presence of viscous dark energy. First we assume that the universe is filled only with viscous dark energy. Then, we extend our study to the case where there is an interaction between viscous dark energy and pressureless dark matter. We examine the time evolution of the total entropy, including the entropy associated with the apparent horizon and the entropy of the viscous dark energy inside the apparent horizon. Our study shows that the generalized second law of thermodynamics is always protected in a universe filled with interacting viscous dark energy and dark matter in a region enclosed by the apparent horizon. Finally, we show that the the generalized second law of thermodynamics is fulfilled for a universe filled with interacting viscous dark energy and dark matter by taking into account the Casimir effect.
引用
收藏
页码：1205 / 1215
页数：11
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