A single model of interacting dark energy: generalized phantom energy or generalized Chaplygin gas

TL;DR

This paper proposes a model where dark energy interacts with matter, featuring a variable equation of state, leading to phantom crossing at zero redshift and stable scaling solutions, suggesting dark energy is likely generalized phantom energy or generalized Chaplygin gas.

Contribution

It introduces a novel interacting dark energy model with a variable equation of state and analyzes its stability and crossing behavior.

Findings

Phantom crossing occurs at zero redshift.

Stable scaling solutions are achieved.

Dark energy is likely generalized phantom energy or Chaplygin gas.

Abstract

I present a model in which dark energy interacts with matter. The former is represented by a variable equation of state. It is shown that the phantom crossing takes place at zero redshift, moreover, stable scaling solution of the Friedmann equations is obtained. I show that dark energy is most probably be either generalized phantom energy or the generalized Chaplygin gas.