Tachyon Reconstruction of Ghost Dark Energy
High Energy Physics - Theory
2012-04-10 v2 General Relativity and Quantum Cosmology
Abstract
Recently it has been argued that a possible source for the dark energy may arise due to the contribution to the vacuum energy of the QCD ghost in a time-dependent background. In this paper we establish a connection between interacting ghost dark energy and tachyon field. It is demonstrated that the evolution of the ghost dark energy dominated universe can be described completely by a single tachyon scalar field. The potential and the dynamics of the tachyon field are reconstructed according to the evolutionary behavior of ghost energy density.
Keywords
Cite
@article{arxiv.1105.0325,
title = {Tachyon Reconstruction of Ghost Dark Energy},
author = {A. Sheykhi and M. Sadegh Movahed and E. Ebrahimi},
journal= {arXiv preprint arXiv:1105.0325},
year = {2012}
}
Comments
7 pages and 8 figures. V2: minor correction and add Refs