Moduli Stabilization in Meta-Stable Heterotic Supergravity Vacua

TL;DR

This paper explores how to stabilize moduli in heterotic string compactifications using non-perturbative gauge dynamics, achieving meta-stable de Sitter or Minkowski vacua with low-energy supersymmetry breaking.

Contribution

It demonstrates a method to stabilize universal dilaton and Kahler moduli in heterotic supergravity vacua, incorporating recent non-perturbative gauge dynamics results.

Findings

Achieves moduli stabilization in de Sitter/Minkowski vacua

Constructs meta-stable vacua with long lifetimes

Incorporates recent advances in gauge dynamics

Abstract

We revisit the issue of moduli stabilization in a class of N=1 four dimensional supergravity theories which are low energy descriptions of standard perturbative heterotic string vacua compactified on Calabi-Yau spaces. In particular, we show how it is possible to stabilize the universal dilaton and Kahler moduli in a de Sitter/Minkowski vacuum with low energy supersymmetry breaking by means of non-perturbative gauge dynamics, including recent results by Intriligator, Seiberg and Shih. The non-SUSY vacua are meta-stable but sufficiently long-lived.