Gaugino Condensates and Fluxes in N = 1 Effective Superpotentials

TL;DR

This paper investigates how fluxes and gaugino condensates in string compactifications influence the effective supergravity potentials, revealing diverse phenomenological scenarios including supersymmetry breaking and preservation.

Contribution

It introduces a unified analysis of fluxes and condensates in N=1 supergravity from string compactifications using N=4 supergravity gaugings, providing new examples of vacua.

Findings

Vacua with small supersymmetry breaking scale controlled by condensates

Cases where fluxes determine supersymmetry breaking scale

Examples of fluxes and condensates preserving supersymmetry

Abstract

In the framework of orbifold compactifications of heterotic and type II orientifolds, we study effective N = 1 supergravity potentials arising from fluxes and gaugino condensates. These string solutions display a broad phenomenology which we analyze using the method of N = 4 supergravity gaugings. We give examples in type II and heterotic compactifications of combined fluxes and condensates leading to vacua with naturally small supersymmetry breaking scale controlled by the condensate, cases where the supersymmetry breaking scale is specified by the fluxes even in the presence of a condensate and also examples where fluxes and condensates conspire to preserve supersymmetry.