Model of interacting dark energy in five-dimensional brane cosmology

TL;DR

This paper explores a five-dimensional brane cosmology model with interacting dark energy, showing it can cross the phantom divide and address the cosmic coincidence problem.

Contribution

It introduces a generalized five-dimensional brane cosmology model with interacting dark energy and variable cosmological constant, demonstrating novel behaviors.

Findings

Dark energy obeys the phantom divide crossing.

The model resolves the cosmic coincidence problem.

Effective equations of state are evaluated for various parameters.

Abstract

We here investigate the model of interacting dark energy in the context of five dimensional brane cosmology. The effective equations of state of dark energy are evaluated for various choices of the variable time dependent cosmological constant. We have found that the interacting dark energy obeys the phantom divide/crossing scenario in this generalized model. It is also shown that interacting dark energy in this generalized model also resolves the cosmic coincidence problem.