Towards natural inflation from weakly coupled heterotic string theory

Abstract

We propose the natural inflation from the heterotic string theory on "Swiss-Cheese" Calabi-Yau manifold with multiple $U(1)$ magnetic fluxes. Such multiple $U(1)$ magnetic fluxes stabilize the same number of the linear combination of the universal axion and Kähler axions and one of the Kähler axions is identified as the inflaton. This axion decay constant can be determined by the size of one-loop corrections to the gauge kinetic function of the hidden gauge groups, which leads effectively to the trans-Planckian axion decay constant consistent with the WMAP, Planck and/or BICEP2 data. During the inflation, the real parts of the moduli are also stabilized by employing the nature of the "Swiss-Cheese" Calabi-Yau manifold.

22 pages

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Cited by in corpus (14)

• Large Field Inflation from Axion Mixing
• New potentials for string axion inflation
• Modular invariant inflation
• Chiral primordial blue tensor spectra from the axion-gauge couplings
• Axion Inflation and Affleck-Dine Baryogenesis
• A no-go theorem for monodromy inflation
• Entropy production by domain wall decay in the NMSSM
• Axion inflation with cross-correlated axion isocurvature perturbations
• Poly-instanton axion inflation
• Symmetry Breaking Indication for Supergravity Inflation in Light of the Planck 2015
• Small field axion inflation with sub-Planckian decay constant
• Aligned Natural Inflation in the Large Volume Scenario
• Axion decay constants at special points in type II string theory
• Stringy constraints on primordial electromagnetic fields in axion inflation