Tachyon Reconstruction of Ghost Dark Energy

Details Tachyon Reconstruction of Ghost Dark Energy Tachyon Reconstruction of Ghost Dark Energy

2011-05-02

arxiv.org/abs/1105.0325v2

Astrophys Space Sci (2012) 339:93-99

Physics

High Energy Physics

High Energy Physics - Theory

7 pages and 8 figures. V2: minor correction and add Refs

Scientific paper

10.1007/s10509-012-0977-x

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.

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