paper

Affleck-Dine inflation in supergravity

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Published 19 April 2021 © 2021 IOP Publishing Ltd and Sissa Medialab
, , Citation Masahiro Kawasaki and Shusuke Ueda JCAP04(2021)049 DOI 10.1088/1475-7516/2021/04/049

1475-7516/2021/04/049

Abstract

Affleck-Dine inflation is a recently proposed model in which a single complex scalar field, nonminimally coupled to gravity, drives inflation and simultaneously generates the baryon asymmetry of universe via Affleck-Dine mechanism. In this paper we investigate the supersymmetric implementation of Affleck-Dine inflation in the use of two chiral superfields with appropriate superpotential and Kähler potential. The scalar potential has a similar form to the potential of original Affleck-Dine inflation, and it gives successful inflation and baryogenesis. We also consider the isocurvature perturbation evolving after crossing the horizon, and find that it is ignorable and hence consistent with the observations.

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10.1088/1475-7516/2021/04/049