Heal the world: Avoiding the cosmic doomsday in the holographic dark energy model

Details Heal the world: Avoiding the cosmic doomsday in the holographic dark energy model Heal the world: Avoiding the cosmic doomsday in the holographic dark energy model

2009-09-27

arxiv.org/abs/0909.4940v3

Phys.Lett.B683:81-87,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages, 3 figures; v2: references and discussions added, new section added to describe the whole expansion history; v3: versi

Scientific paper

10.1016/j.physletb.2009.12.021

The current observational data imply that the universe would end with a cosmic doomsday in the holographic dark energy model. However, unfortunately, the big-rip singularity will ruin the theoretical foundation of the holographic dark energy scenario. To rescue the holographic scenario of dark energy, we employ the braneworld cosmology and incorporate the extra-dimension effects into the holographic theory of dark energy. We find that such a mend could erase the big-rip singularity and leads to a de Sitter finale for the holographic cosmos. Therefore, in the holographic dark energy model, the extra-dimension recipe could heal the world.

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