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Abstract: In this paper we implement the new agegraphic dark energy model withquintessence field. We demonstrate that the new agegraphic evolution of theuniverse can be described completely by a single quintessence field. Itspotential as a function of the quintessence field is reconstructed numerically.In particular, the analytical solution of the new agegraphic quintessence darkenergy model NAQDE is approximately obtained in the matter-dominated epoch.Furthermore, we investigate the evolution of the NAQDE model in the$\omega-\omega-$ phase plane. It turns out that by quantum corrections, thetrajectory of this model lies outside the thawing and freezing regions at earlytimes. But at late times, it enters the freezing regions and graduallyapproaches to a static cosmological constant state in the future. Therefore theNAQDE should belong to the freezing model at late times. For comparison, wefurther extend this model by including the interaction between the NADE and DMand discuss its evolution in the $\omega-\omega-$ phase plane.



Autor: Jian-Pin Wu, Da-Zhu Ma, Yi Ling

Fuente: https://arxiv.org/







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