The Holographic Dark Energy in a Non-flat Universe

Details The Holographic Dark Energy in a Non-flat Universe The Holographic Dark Energy in a Non-flat Universe

2004-04-12

arxiv.org/abs/astro-ph/0404229v3

JCAP 0408 (2004) 013

Astronomy and Astrophysics

Astrophysics

12 pages, harvmac, v2: order of authors is corrected in webpage, v3: refs. added

Scientific paper

10.1088/1475-7516/2004/08/013

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, $c$ can not be less than 1, to avoid violating the second law of thermodynamics. On the other hand, observation suggests $c$ be very close to 1, it is hard to justify a small deviation of $c$ from 1, if $c>1$.

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