Axionic Inflation from Large Volume Flux Compactifications

Abstract

We find a general model of {\em single-field} inflation within the context of type IIB string theory compactified on large volume Calabi-Yau orientifolds with $h^{2,1}>h^{1,1}=2$. The inflaton is the axion part of the complexified Kähler moduli and the resulting scalar power spectrum is red, and can easily be made compatible with WMAP3 bounds on $n_s$. This model overcomes the $\eta$-problem using gaugino condensates on wrapped D7-brane while keeping the tuning of the parameters minimal.

4 pages, 2 figures, RevTex

References in corpus (10)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• de Sitter Vacua in String Theory
• Hierarchies from Fluxes in String Compactifications
• Non-Perturbative Superpotentials In String Theory
• Natural Inflation: Particle Physics Models, Power Law Spectra for Large Scale Structure, and Constraints from COBE
• Supersymmetry Breaking and alpha'-Corrections to Flux Induced Potentials
• Building a Better Racetrack
• Racetrack Inflation
• Inflation and the Theory of Cosmological Perturbations
• GAUGINO CONDENSATES AND CHIRAL-LINEAR DUALITY: AN EFFECTIVE LAGRANGIAN ANALYSIS

Cited by in corpus (6)

• Enhanced Non-Gaussianity from Excited Initial States
• de Sitter String Vacua from Kahler Uplifting
• Roulette Inflation with Kähler Moduli and their Axions
• Astrophysical and Cosmological Implications of Large Volume String Compactifications
• Wilson Line Inflation
• Multi-Field Inflation from String Theory