Single-Superfield Helical-Phase Inflation

Abstract

Large-field inflation in supergravity requires the approximate global symmetry needed to protect flatness of the scalar potential. In helical-phase inflation, the U(1) symmetry of the Kahler potential is assumed, the phase part of the complex scalar of a chiral superfield plays the role of inflaton, and the radial part is strongly stabilized. The original model of helical phase inflation, proposed by Li, Li and Nanopoulos (LLN), employs an extra (stabilizer) superfield. We propose a more economical new class of the helical phase inflationary models without a stabilizer superfield. As the specific examples, the quadratic, the natural, and the Starobinsky-type inflationary models are studied in our approach.

11 pages, 3 figures (published version); more explanations and references added, typos corrected, and figures improved

References in corpus (12)

• A Joint Analysis of BICEP2/Keck Array and Planck Data
• New models of chaotic inflation in supergravity
• General inflaton potentials in supergravity
• Challenges for Large-Field Inflation and Moduli Stabilization
• Inflation in Supergravity with a Single Chiral Superfield
• Generic Scalar Potentials for Inflation in Supergravity with a Single Chiral Superfield
• Grand Unification, Axion, and Inflation in Intermediate Scale Supersymmetry
• Helical Phase Inflation
• Inflation in Supergravity with a Single Superfield
• Power spectrum oscillations from Planck-suppressed operators in effective field theory motivated monodromy inflation
• Helical Phase Inflation and Monodromy in Supergravity Theory
• Helical Phase Inflation via Non-Geometric Flux Compactifications: from Natural to Starobinsky-like Inflation

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• Minimal Supergravity Inflation without Slow Gravitino
• Massive vector multiplet with Dirac-Born-Infeld and new Fayet-Iliopoulos terms in supergravity
• Toward pole inflation and attractors in supergravity : Chiral matter field inflation
• On SUSY Restoration in Single-Superfield Inflationary Models of Supergravity
• Polonyi-Starobinsky supergravity with inflaton in a massive vector multiplet with DBI and FI terms
• Multi-field inflation and the field-space metric
• Constrained Superfields in Dynamical Background
• Small field inflation in $\mathcal{N}=1$ supergravity with a single chiral superfield
• $F$-term Multi-Field Inflation in Supergravity without Stabiliser Superfields