# String inspired explanation for the super-acceleration of our universe

## TL;DR

This paper explores how bulk content in a Gauss-Bonnet braneworld influences cosmic evolution, showing it can account for the universe's super-acceleration consistent with observations.

## Contribution

It introduces a model where Gauss-Bonnet terms and bulk matter content explain super-acceleration without dark energy.

## Key findings

- Gauss-Bonnet term affects universe evolution
- Bulk matter and dark radiation influence acceleration
- Model aligns with observational data

## Abstract

We investigate the effect of the bulk content in the general Gauss-Bonnet braneworld on the evolution of the universe. We find that the Gauss-Bonnet term and the combination of the dark radiation and the matter content of the bulk play a crucial role in the universe evolution. We show that our model can describe the super-acceleration of our universe with the equation of state of the effective dark energy in agreement with observations.