A Braneworld Dark Energy Model with Induced Gravity and the Gauss-Bonnet Effect

TL;DR

This paper develops a holographic dark energy model incorporating a non-minimally coupled scalar field on a brane, considering Gauss-Bonnet and Induced Gravity effects, leading to rich cosmological behaviors including phantom crossing and bouncing solutions.

Contribution

It introduces a novel holographic dark energy model with combined Gauss-Bonnet and Induced Gravity effects on the brane, exploring new cosmological implications.

Findings

Equation of state crosses the phantom divide line.

Bouncing solutions are realizable in the model.

Model has a wide parameter space with diverse cosmological behaviors.

Abstract

We construct a holographic dark energy model with a non-minimally coupled scalar field on the brane where Gauss-Bonnet and Induced Gravity effects are taken into account. This model provides a wide parameter space with several interesting cosmological implications. Especially, the equation of state parameter of the model crosses the phantom divide line and it is possible to realize bouncing solutions in this setup.