On supersymmetric Minkowski vacua in IIB orientifolds

TL;DR

This paper investigates the conditions and challenges of achieving supersymmetric Minkowski vacua in type IIB orientifold compactifications, demonstrating stabilization methods for models with various moduli and flux configurations.

Contribution

It provides a detailed analysis of microscopic requirements and introduces stabilization techniques for Minkowski vacua in IIB orientifold models with fluxes and non-perturbative effects.

Findings

Orbifold models with one or two complex structure moduli can be stabilized to Minkowski vacua.

Inclusion of gaugino condensation allows stabilization without complex structure moduli.

Successful stabilization depends on specific flux and non-perturbative superpotential configurations.

Abstract

Supersymmetric Minkowski vacua in IIB orientifold compactifications based on orbifolds with background fluxes and non-perturbative superpotentials are investigated. Especially, microscopic requirements and difficulties to obtain such vacua are discussed. We show that orbifold models with one and two complex structure moduli and supersymmetric 2-form flux can be successfully stabilized to such vacua. By taking additional gaugino condensation on fixed space-time filling D3-branes into account also models without complex structure can be consistently stabilized to Minkowski vacua.