String Moduli Stabilization at the Conifold

Abstract

We study moduli stabilization for type IIB orientifolds compactified on Calabi-Yau threefolds in the region close to conifold singularities in the complex structure moduli space. The form of the periods implies new phenomena like exponential mass hierarchies even in the regime of negligible warping. Integrating out the heavy conic complex structure modulus leads to an effective flux induced potential for the axio-dilaton and the remaining complex structure moduli containing exponentially suppressed terms that imitate non-perturbative effects. It is shown that this scenario can be naturally combined with the large volume scenario so that all moduli are dynamically stabilized in the dilute flux regime. As an application of this moduli stabilization scheme, a string inspired model of aligned inflation is designed that features a parametrically controlled hierarchy of mass scales.

33 pages, 4 figures, v2: final version

References in corpus (4)

• A Natural Framework for Chaotic Inflation
• On the Possibility of Large Axion Moduli Spaces
• The Challenge of Realizing F-term Axion Monodromy Inflation in String Theory
• Axion Monodromy Inflation on Warped Throats

Cited by in corpus (17)

• The Swampland: Introduction and Review
• The Swampland Conjecture and F-term Axion Monodromy Inflation
• Vacua with Small Flux Superpotential
• Uplifting Runaways
• Swampland Variations on a Theme by KKLT
• Backreaction Issues in Axion Monodromy and Minkowski 4-forms
• Can Gravitational Instantons Really Constrain Axion Inflation?
• Conifold Vacua with Small Flux Superpotential
• Small Flux Superpotentials for Type IIB Flux Vacua Close to a Conifold
• Thraxions: Ultralight Throat Axions
• Two-field axion inflation and the swampland constraint in the flux-scaling scenario
• Large Field Ranges from Aligned and Misaligned Winding
• Orientifold Calabi-Yau Threefolds with Divisor Involutions and String Landscape
• Winding Uplifts and the Challenges of Weak and Strong SUSY Breaking in AdS
• Challenges for D-brane large-field inflation with stabilizer fields
• Small field axion inflation with sub-Planckian decay constant
• Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme