Strong Coupling and the Cosmological Constant

TL;DR

This paper explores a theoretical framework linking string vacua in different dimensions to explain the smallness of the cosmological constant and the absence of a massless dilaton.

Contribution

It proposes a duality between supersymmetric three-dimensional and non-supersymmetric four-dimensional string vacua as a potential explanation.

Findings

Suggests a duality could account for a vanishing cosmological constant

Proposes a mechanism for the absence of a massless dilaton

Provides a new perspective on string vacuum relationships

Abstract

The vanishing of the cosmological constant and absence of a massless dilaton might be explained by a duality between a supersymmetric string vacuum in three dimensions and a non-supersymmetric string vacuum in four dimensions.