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

2009; Elsevier BV; Volume: 683; Issue: 2-3 Linguagem: Inglês

10.1016/j.physletb.2009.12.021

1873-2445

Xin Zhang,

Black Holes and Theoretical Physics

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.