Stability of flux compactifications and the pattern of supersymmetry breaking

TL;DR

This paper extends the KKLT framework for moduli stabilization by incorporating additional moduli, revealing that stable vacua and supersymmetry breaking patterns are more diverse than previously thought.

Contribution

It introduces a generalized approach to flux compactifications that includes the dilaton and complex structure moduli, challenging the assumption of their decoupling in stability analysis.

Findings

Stable minima can exist without dilaton decoupling.

Supersymmetry breaking patterns are more varied than in traditional KKLT models.

Decoupling of the dilaton is not always necessary for stability.

Abstract

We extend the KKLT approach to moduli stabilization by including the dilaton and the complex structure moduli into the effective supergravity theory. Decoupling of the dilaton is neither always possible nor necessary for the existence of stable minima with zero (or positive) cosmological constant. The pattern of supersymmetry breaking can be much richer than in the decoupling scenario of KKLT.