Chaotic inflation and supersymmetry breaking

TL;DR

This paper explores chaotic inflation models within supergravity frameworks, incorporating matter fields and a SUSY breaking mechanism, addressing reheating and cosmological issues like moduli and gravitino problems.

Contribution

It extends chaotic inflation models in supergravity to include matter fields and a KKLT-based SUSY breaking mechanism, providing solutions to reheating and cosmological problems.

Findings

Successful integration of matter fields into chaotic inflation models.

Demonstration of solving moduli and gravitino problems.

Analysis of reheating features in the extended models.

Abstract

We investigate the recently proposed class of chaotic inflation models in supergravity with an arbitrary inflaton potential. These models are extended to include matter fields in the visible sector and we employ a mechanism of SUSY breaking based on a particular phenomenological version of the KKLT mechanism (the KL model). We describe specific features of reheating in this class of models and show how one can solve the cosmological moduli and gravitino problems in this context.