English

The Holographic Dark Energy in a Non-flat Universe

Astrophysics 2009-11-10 v3 General Relativity and Quantum Cosmology High Energy Physics - Theory

Abstract

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=1c=1 in the holographic dark energy model. On the one hand, cc can not be less than 1, to avoid violating the second law of thermodynamics. On the other hand, observation suggests cc be very close to 1, it is hard to justify a small deviation of cc from 1, if c>1c>1.

Keywords

Cite

@article{arxiv.astro-ph/0404229,
  title  = {The Holographic Dark Energy in a Non-flat Universe},
  author = {Qing-Guo Huang and Miao Li},
  journal= {arXiv preprint arXiv:astro-ph/0404229},
  year   = {2009}
}

Comments

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