Georgios Kofinas, Vasilios Zarikas
We propose a mechanism capable to provide a natural solution to two major
cosmological problems, first cosmic acceleration and second the coincidence
problem. Analyzing a specific brane-bulk energy exchange mechanism through
astrophysical black holes it is possible first to understand and realize the
natural interrelation between dark energy and matter density and second explain
why dark energy can be of the same order of the matter density for a wide range
of the involved parameters. Furthermore, the model can lead to a crossing of
the phantom divide recently.
View original:
http://arxiv.org/abs/1107.2602
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