Generic Scalar Potentials for Inflation in Supergravity with a Single Chiral Superfield

Abstract

We propose a large class of supergravity models in terms of a single chiral matter superfield, leading to (almost) arbitrary single-field inflationary scalar potentials similar to the F-term in rigid supersymmetry. Those scalar potentials are positively semi-definite (in our approximation), and can preserve supersymmetry at the end of inflation. The only scalar superpartner of inflaton is stabilized by a higher-dimensional term in the Kahler potential. We argue that couplings of the inflaton to other sectors of the particle spectrum do not affect the inflationary dynamics, and briefly discuss reheating of the universe by the inflaton decays.

20 pages, 6 figures; published version + references updated + footnote 3 added + image file sizes reduced

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Cited by in corpus (15)

• Single-field $\alpha$-attractors
• On sgoldstino-less supergravity models of inflation
• Does the first chaotic inflation model in supergravity provide the best fit to the Planck data?
• Inflation in no-scale supergravity
• On the equivalence between Starobinsky and Higgs inflationary models in gravity and supergravity
• Nonthermal Gravitino Production after Large Field Inflation
• Gravity Waves From Non-Minimal Quadratic Inflation
• Reconciling Induced-Gravity Inflation in Supergravity With The Planck 2013 & BICEP2 Results
• Supersymmetry Breaking and Inflation from Higher Curvature Supergravity
• General sGoldstino Inflation
• Inflation and Dark Energy with a Single Superfield
• Inflection point inflation and dark energy in supergravity
• Gravitino Problem in Inflation Driven by Inflaton-Polonyi Kähler Coupling
• Linearized Non-Minimal Higher Curvature Supergravity
• Small field inflation in $\mathcal{N}=1$ supergravity with a single chiral superfield