Fluxes, Gaugings and Gaugino Condensates

TL;DR

This paper explores how fluxes and gaugino condensates in string compactifications influence the effective four-dimensional supergravity potentials, leading to vacua with small supersymmetry breaking scales and clarifying their roles in supersymmetry breaking.

Contribution

It establishes a connection between fluxes, gaugino condensates, and effective supergravity potentials in orbifold compactifications, providing new examples with small supersymmetry breaking.

Findings

Fluxes and condensates can produce vacua with small supersymmetry breaking.

The roles of fluxes and condensates in supersymmetry breaking are clarified.

Scaling properties of the gravitino mass are analyzed.

Abstract

Based on the correspondence between the N = 1 superstring compactifications with fluxes and the N = 4 gauged supergravities, we study effective N = 1 four-dimensional supergravity potentials arising from fluxes and gaugino condensates in the framework of orbifold limits of (generalized) Calabi-Yau compactifications. We give examples in heterotic and type II orientifolds in which combined fluxes and condensates lead to vacua with small supersymmetry breaking scale. We clarify the respective roles of fluxes and condensates in supersymmetry breaking, and analyze the scaling properties of the gravitino mass.