The holographic dark energy in a non-flat universe

被引:459
作者
Huang, QG
Li, M
机构
[1] Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
[2] Acad Sinica, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China
[3] Univ Sci & Technol China, Interdisciplinary Ctr Theoret Study, Hefei 230026, Anhui, Peoples R China
来源
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2004年 / 08期
关键词
dark energy theory; gravity; quantum gravity phenomenology;
D O I
10.1088/1475-7516/2004/08/013
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We study the model for holographic dark energy in a spatially closed universe, generalizing the proposal in hep-th/0403127 for a flat universe. We provide independent arguments for the choice of the parameter c = 1 in the holographic dark energy model. On the one hand, c cannot be less than 1, to avoid violating the second law of thermodynamics. On the other hand, observation suggests c to be very close to 1; it is hard to justify a small deviation of c from 1 if c >1.
引用
收藏
页码:261 / 270
页数:10
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