A note on dark energy induced by D-brane motion

TL;DR

This paper explores how D-brane motion in a warped background could generate dark energy, showing potential but requiring fine-tuning and lacking a tracker solution.

Contribution

It introduces a D-brane scenario with brane-position dependent superpotential corrections to model dark energy.

Findings

The model can produce dark energy within observational bounds.

Fine-tuning of parameters is necessary for the model to work.

The model does not have a tracker solution.

Abstract

In this note we study the possibility of obtaining dark energy solution in a D-brane scenario in a warped background that includes brane-position dependent corrections for the non-perturbative superpotential. The volume modulus is stabilized at instantaneous minima of the potential. Though the model can account for the existence of dark energy within present observational bound - fine-tuning of the model parameters becomes unavoidable. Moreover, the model does not posses a tracker solution.