An interacting holographic dark energy model within an induced gravity brane

Abstract

In this paper, we present a model for the late-time evolution of the universe where a dark energy-dark matter interaction is invoked. Dark energy is modeled through an holographic Ricci dark energy component. The model is embedded within an induced gravity brane-world model. For suitable choices of the interaction coupling, the big rip and little rip induced by the holographic Ricci dark energy, in a relativistic model and in an induced gravity brane-world model, are removed. In this scenario, the holographic dark energy will have a phantom-like behaviour even though the brane is asymptotically de Sitter.

16 pages, 16 figures. Style and presentation improved. References added. Physics unchanged. Text overlap with our former work arXiv:1112.5836