Crossing the phantom divide with Ricci-like holographic dark energy
High Energy Physics - Theory
2014-11-21 v3 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
Abstract
We study a holographic model for the dark energy considered recently in the literature which postulates an energy density , where is the Ricci scalar curvature. We obtain a cosmological scenario that comes from considering two non-interacting fluids along a reasonable Ansatz for the cosmic coincidence parameter. We adjust the involved parameters in the model according to the observational data and we show that the equation of state for the dark energy experience a cross through the -1 barrier. In addition, we find a disagreement in these parameters with respect to an approach from a scalar field theory.
Keywords
Cite
@article{arxiv.1005.2180,
title = {Crossing the phantom divide with Ricci-like holographic dark energy},
author = {Samuel Lepe and Francisco Pena},
journal= {arXiv preprint arXiv:1005.2180},
year = {2014}
}
Comments
Match with accepted version by EPJC