An Alternative Approach to Holographic Dark Energy

Details An Alternative Approach to Holographic Dark Energy An Alternative Approach to Holographic Dark Energy

2006-09-27

arxiv.org/abs/astro-ph/0609755v2

JCAP 0703:016,2007

Astronomy and Astrophysics

Astrophysics

4 pages, 1 figure, revised version matches published version

Scientific paper

10.1088/1475-7516/2007/03/016

Here we consider a scenario in which dark energy is associated with the apparent area of a surface in the early universe. In order to resemble the cosmological constant at late times, this hypothetical reference scale should maintain an approximately constant physical size during an asymptotically de-Sitter expansion. This is found to arise when the particle horizon - anticipated to be significantly greater than the Hubble length - is approaching the antipode of a closed universe. Depending on the constant of proportionality, either the ensuing inflationary period prevents the particle horizon from vanishing, or it may lead to a sequence of "Big Rips".

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