Stabilizing all geometric moduli in heterotic Calabi-Yau vacua
Stabilizing all geometric moduli in heterotic Calabi-Yau vacua
We propose a scenario to stabilize all geometric moduli---that is, the complex structure, K\"ahler moduli, and the dilaton---in smooth heterotic Calabi-Yau compactifications without Neveu-Schwarz three-form flux. This is accomplished using the gauge bundle required in any heterotic compactification, whose perturbative effects on the moduli are combined with nonperturbative corrections. We …