Moduli fixing and T-duality in Type II brane gas models

TL;DR

This paper investigates how moduli stabilization occurs in Type II brane gas models with a six-dimensional torus, demonstrating that various internal space parameters can be fixed through the inclusion of branes and T-duality transformations.

Contribution

It shows that the dilaton and cycle scales are stabilized in Type II brane gas models using NS5-branes, Kaluza-Klein monopoles, D-branes, and T-duality, providing new ways to fix moduli.

Findings

Moduli are stabilized by branes and monopoles.

T-duality enables construction of models with fixed moduli.

Multiple models achieve moduli stabilization.

Abstract

We consider a compactification with a six-dimensional torus in the type II brane gas models. We show that the dilaton and the scale of each cycle of the internal space are fixed in the presence of NS5-brane and Kaluza-Klein monopoles as well as D-branes with the gauge fields. We can construct various models that lead to fixed moduli by using T-duality transformations.