Interplay between Background Fluxes and Instanton Configurations

TL;DR

This paper investigates how background fluxes influence D-brane models, leading to modified interactions and new non-perturbative superpotential terms through instanton effects in string theory.

Contribution

It demonstrates the creation of novel superpotential terms induced by fluxes and instantons in D-brane models, expanding understanding of non-perturbative effects in string compactifications.

Findings

Fluxes induce fermionic masses on branes.

New non-perturbative superpotential terms are generated.

Instantons contribute to effective interactions in flux backgrounds.

Abstract

We focus on D-brane models in presence of closed string background fluxes. These fluxes modify the effective interactions on Dirichlet and Euclidean branes, in particular inducing fermionic masses. We show how they can create new non-perturbative superpotential terms in presence of gauge and exotic instantons in SQCD-like models.