Target space duality and moduli stabilization in String Gas Cosmology

TL;DR

This paper explores the stability of moduli fields in string gas cosmology, revealing new stable points with non-zero flux and expanding understanding of target space dualities beyond the self-dual point.

Contribution

It demonstrates the existence of additional stable fixed points in moduli space with non-vanishing flux, extending previous claims of unique stabilization at the self-dual point.

Findings

Stable fixed points with non-zero flux identified

Target space dualities generalized beyond self-dual point

Moduli stabilization mechanisms expanded in string gas cosmology

Abstract

Motivated by string gas cosmology, we investigate the stability of moduli fields coming from compactifications of string gas on torus with background flux. It was previously claimed that moduli are stabilized only at a single fixed point in moduli space, a self-dual point of T-duality with vanishing flux. Here, we show that there exist other stable fixed points on moduli space with non-vanishing flux. We also discuss the more general target space dualities associated with these fixed points.