Quintessence Ghost Dark Energy Model

Understand

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, $\rho_D=\alpha H$, where $\alpha$ 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.