Dilatonic Interpretation of the Quintessence?

TL;DR

This paper explores how quintessence effects observed in cosmology might be explained through string theory's dilaton field, proposing a link between dilaton couplings and the universe's evolution.

Contribution

It introduces a dilatonic framework within string theory to interpret quintessence and addresses the cosmic coincidence problem through dilaton coupling dynamics.

Findings

Dilaton couplings can account for quintessence effects.

A potential link exists between dilaton strength and cosmic evolution.

The approach offers a new perspective on the cosmic coincidence problem.

Abstract

We discuss the possibility that "quintessential effects", recently displayed by large scale observations, may be consistently described in the context of the low-energy string effective action, and we suggest a possible approach to the problem of the cosmic coincidence based on the link between the strength of the dilaton couplings and the cosmological state of our Universe.