Towards Natural Inflation in String Theory

TL;DR

This paper constructs string theory models of natural inflation using axions from type IIB compactifications, ensuring moduli stabilization and realistic inflationary dynamics.

Contribution

It introduces specific type IIB string embeddings of axion-based natural inflation models with stabilized compactification moduli.

Findings

Successful embedding of axion inflation in type IIB string theory.

Incorporation of KKLT and large volume stabilization scenarios.

Potential for realistic inflation consistent with string theory constraints.

Abstract

We provide type IIB string embeddings of two axion variants of natural inflation. We use a combination of RR 2 form axions as the inflaton field and have its potential generated by non perturbative effects in the superpotential. Besides giving rise to inflation, the models developed take into account the stabilization of the compact space, both in the KKLT and large volume scenario regimes, an essential condition for any semi-realistic model of string inflation.