Late D-term Inflation and the Cosmological Moduli Problem in TeV Scale Strings

TL;DR

This paper proposes that a brief period of late D-term inflation after stabilizing extra dimensions can resolve the cosmological moduli problem in TeV scale string models, ensuring a small Hubble constant and inflaton mass.

Contribution

It introduces a novel scenario where late D-term inflation occurs post-compactification, addressing the moduli problem at the TeV scale.

Findings

Late D-term inflation can solve the moduli problem in TeV scale strings.

Inflation occurs after stabilization of large extra dimensions.

The model achieves an extremely small Hubble constant and inflaton mass.

Abstract

We show that a short period of late D-term inflation can solve the cosmological moduli (radion) problem of (asymmetric) inflation at the TeV scale. Late inflation happens after the large compact dimensions are stabilized which is crucial for obtaining the extremely small Hubble constant and inflaton mass required.