Affleck-Dine inflation in supergravity

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.

arXiv comment14 pages, 5 figures

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• Detectable Gravitational Wave Signals from Affleck-Dine Baryogenesis
• Affleck-Dine Leptogenesis from Higgs Inflation
• Type II Seesaw Leptogenesis
• Lepton Flavour Violation Tests of Type II Seesaw Leptogenesis
• Affleck-Dine Cogenesis of Baryon and Dark Matter
• Massless Preheating and Electroweak Vacuum Metastability
• Q-balls Formation and the Production of Gravitational Waves With Non-minimal Gravitational Coupling
• Leptogenesis via Inflaton Mass Terms in Non-Minimally Coupled Inflation