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.
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This work has been supported financially by Research Institute for Astronomy and Astrophysics of Maragha (RIAAM) under research project No. 1/2337.
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Sheykhi, A., Sadegh Movahed, M. & Ebrahimi, E. Tachyon reconstruction of ghost dark energy. Astrophys Space Sci 339, 93–99 (2012). https://doi.org/10.1007/s10509-012-0977-x
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DOI: https://doi.org/10.1007/s10509-012-0977-x