The dynamical behavior of the Extended Holographic Dark Energy with Hubble Horizon

Details The dynamical behavior of the Extended Holographic Dark Energy with Hubble Horizon The dynamical behavior of the Extended Holographic Dark Energy with Hubble Horizon

2009-12-04

arxiv.org/abs/0912.0802v2

Phys.Rev.D81:083536,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, 7 figures; minor corrections, PRD in press

Scientific paper

10.1103/PhysRevD.81.083536

The extended holographic dark energy model with the Hubble horizon as the infrared cutoff avoids the problem of the circular reasoning of the holographic dark energy model. Unfortunately, it is hit with the no-go theorem. In this paper, we consider the extended holographic dark energy model with a potential, $V(\phi)$, for the Brans-Dicke scalar field. With the addition of a potential for the Brans-Dicke scalar field, the extended holographic dark energy model using the Hubble horizon as the infrared cutoff is a viable dark energy model, and the model has the dark energy dominated attractor solution.

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