Interacting generalized Chaplygin gas model in non-flat universe

TL;DR

This paper explores an interacting generalized Chaplygin gas model in a non-flat universe, deriving its equation of state and showing that certain parameter choices lead to phantom dark energy dominance.

Contribution

It introduces a specific interacting dark energy model with the generalized Chaplygin gas in a non-flat universe and analyzes its equation of state behavior.

Findings

Negative B leads to phantom dark energy behavior

The model's equation of state can be less than -1

Universe can be dominated by phantom energy under certain conditions

Abstract

We employ the generalized Chaplygin gas of interacting dark energy to obtain the equation of state for the generalized Chaplygin gas energy density in non-flat universe. By choosing a negative value for $B$ we see that $w_{\rm \Lambda}^{eff}< -1$, that corresponds to a universe dominated by phantom dark energy.