Interacting model of new agegraphic dark energy: Cosmological evolution and statefinder diagnostic

TL;DR

This paper explores the cosmological evolution of an interacting new agegraphic dark energy model using the statefinder diagnostic to distinguish it from other dark energy models.

Contribution

It introduces an analysis of the interacting new agegraphic dark energy model with statefinder diagnostics, highlighting the impact of interaction on cosmic evolution.

Findings

Interaction affects the universe's evolution trajectories in the statefinder plane.

Statefinder parameters effectively differentiate the interacting dark energy model.

Cosmological evolution varies with different interaction cases.

Abstract

The statefinder diagnosic is a useful method for distinguishing different dark energy models. In this paper, we investigate the new agegraphic dark energy model with interaction between dark energy and matter component by using statefinder parameter pair $\{r, s\}$ and study its cosmological evolution. We plot the trajectories of the new agegraphic dark energy model for different interaction cases in the statefinder plane. As a result, the influence of the interaction on the evolution of the universe is shown in the statefinder diagrams.