Validity of generalised second law in holographic DGP brane

被引：28
|
作者：
Dutta, Jibitesh [1 ]
Chakraborty, Subenoy [2 ]
机构：
[1] NE Hill Univ, Dept Basic Sci & Social Sci, Shillong 793022, Meghalaya, India
[2] Jadavpur Univ, Dept Math, Kolkata 700032, India
来源：
GENERAL RELATIVITY AND GRAVITATION | 2010年 / 42卷 / 08期
关键词：
DGP brane world; Holographic dark energy (HDE); Generalised second law of thermodynamics (GSLT); EQUATION-OF-STATE; DARK ENERGY; MODIFIED GRAVITY; COSMIC ACCELERATION; APPARENT HORIZON; PHANTOM ENERGY; CURVATURE; THERMODYNAMICS; W-LESS-THAN-1; UNIVERSE;
D O I：
10.1007/s10714-010-0957-9
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper we study the validity of the generalised second law of thermodynamics (GSLT) of the universe bounded by the event horizon on the Dvali-Gabadadze-Porrati (DGP) brane world. The radius of the event horizon is calculated by establishing a correspondence between holographic dark energy and the effective energy density in the DGP brane world. It is shown that in the absence of cold dark matter (CDM), GSLT is always respected. In the presence of CDM, we take three different DGP models and find conditions under which GSLT holds.
引用
收藏
页码：1863 / 1873
页数：11
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