Two-Stage Inflation in Supergravity

Abstract

We investigate the viability of a two-stage inflationary scenario in the context of supergravity, so as to resolve the problem of initial conditions for hybrid inflation. We allow for non-renormalizable terms in the superpotential and consider the most general form of the Kahler potential and the gauge kinetic function. We construct a model with two stages of inflation, the first driven by D-term and the second by F-term energy density. The viability of this scenario depends on the non-minimal terms in the Kahler potential, for which we derive the necessary constraints.

25 pages, LaTeX file, 2 figures in eps format, minor corrections to the text

References in corpus (9)

• Hybrid Inflation in Supergravity
• Multiple inflation
• Preheating in Hybrid Inflation
• Blue Perturbation Spectra from Hybrid Inflation with Canonical Supergravity
• Fine tuning of the initial conditions for hybrid inflation
• Dynamical Inflation and Unification Scale on Quantum Moduli Spaces
• Hybrid Inflation with Quasi-canonical Supergravity
• Initial Conditions for Supersymmetric Inflation
• Conditions for Viable Affleck-Dine Baryogenesis -- Implications for String Theories

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• Natural Double Inflation in Supergravity
• Gravitational Waves and Primordial Black Holes from Supersymmetric Hybrid Inflation
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• Basics of inflationary cosmology
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• Constraints on the three-fluid model of curvaton decay
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• Hybrid Inflation in Quasi-minimal Supergravity with Monotonic Inflationary Potentia
• Phenomenology and Cosmology of Supersymmetric Grand Unified Theories