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Quintessence Ghost Dark Energy Model
A so called "ghost dark energy" was recently proposed to explain the present
acceleration of the universe expansion. The energy density of ghost dark
energy, which originates from Veneziano ghost of QCD, is proportional to the
Hubble parameter, , where is a constant which is
related to the QCD mass scale. In this paper, we establish the correspondence
between ghost dark energy and quintessence scalar field energy density. This
connection allows us to reconstruct the potential and the dynamics of the
quintessence scalar field according to the evolution of ghost energy density.Comment: 8 pages, 7 figures, version to appear in Europhys. Let