Holographic dark energy in Brans-Dicke theory

TL;DR

This paper demonstrates that integrating holographic dark energy with Brans-Dicke theory better explains the universe's transition from deceleration to acceleration and alleviates the coincidence problem compared to Einstein's theory.

Contribution

It introduces a novel approach combining holographic dark energy with Brans-Dicke theory to address cosmic acceleration and coincidence problem.

Findings

Transition from deceleration to acceleration is more easily explained.

Coincidence problem is softened in this framework.

Brans-Dicke theory enhances the explanatory power for late cosmic acceleration.

Abstract

In this Letter it is shown that when the holographic dark energy is combined with the Brans-Dicke field equations the transition from decelerated to accelerated expansion of the Universe can be more easily accounted for than when resort to the Einstein field equations is made. Likewise, the coincidence problem of late cosmic acceleration gets more readily softened.