Large Volume Axionic Swiss-Cheese Inflation

TL;DR

This paper demonstrates the feasibility of slow-roll axionic inflation within large volume Swiss-Cheese Calabi-Yau compactifications of type IIB string theory, incorporating various quantum corrections to achieve a flat inflationary potential.

Contribution

It introduces a comprehensive analysis of axionic inflation in large volume compactifications, including perturbative and non-perturbative corrections, showing the potential for slow-roll inflation with NS-NS axions.

Findings

Axionic inflation is possible with large volume Swiss-Cheese Calabi-Yau manifolds.

Quantum corrections influence the inflationary potential but do not prevent slow-roll conditions.

NS-NS axions create a flat direction facilitating transition from saddle point to de Sitter minimum.

Abstract

Continuing with the ideas of (section 4 of) [1], after inclusion of perturbative and non-perturbative alpha' corrections to the Kaehler potential and (D1- and D3-) instanton generated superpotential, we show the possibility of slow-roll axionic inflation in the large volume limit of Swiss-Cheese Calabi-Yau orientifold compactifications of type IIB string theory. We also include one- and two-loop corrections to the Kaehler potential but find the same to be subdominant to the (perturbative and non-perturbative) alpha' corrections. The NS-NS axions provide a flat direction for slow-roll inflation to proceed from a saddle point to the nearest dS minimum.