Natural Chaotic Inflation in Supergravity

2000/04/30 by Masahiro Kawasaki, M. Kawasaki, Masahide Yamaguchi +1 · 16 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology #Cosmology and Gravitation Theories #Eternal inflation #Flatness (cosmology) #Inflation (cosmology) #Inflaton #Mathematical physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Supergravity #Superpotential #Supersymmetry #Symmetry breaking #Theoretical physics #astro-ph #hep-ph

paper · pdf · doi:10.1103/physrevlett.85.3572

published as Phys.Rev.Lett. 85 (2000) 3572-3575 · Some typos are corrected. To appear in Phys. Rev. Lett

arxiv created 2000/09/28 · openalex publication_date 2000/10/23 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We propose a chaotic inflation model in supergravity. In the model the Kahler potential has a Nambu-Goldstone-type shift symmetry of the inflaton chiral multiplet which ensures the flatness of the inflaton potential beyond the Planck scale. We show that chaotic inflation naturally takes place by introducing a small breaking term of the shift symmetry in the superpotential. This may open a new branch of model building for inflationary cosmology in the framework of supergravity.

Citations

• The development of irregularities in a single bubble inflationary universe
• Dynamics of phase transition in the new inflationary universe scenario and generation of perturbations
• Particle Physics Models of Inflation and the Cosmological Density Perturbation
• Fluctuations in the New Inflationary Universe
• Chaotic inflation

Cited by

• Viable chaotic inflation as a source of neutrino masses and leptogenesis
• Lower bound of the tensor-to-scalar ratio r≳0.1 in a nearly quadratic chaotic inflation model in supergravity
• Kähler potentials for Planck inflation
• Cosmological attractors fromα-scale supergravity
• Inflation from high-scale supersymmetry breaking
• Non-minimally gravity-coupled inflationary models
• Primordial GWs from universality classes of pseudo-scalar inflation
• Non-Gaussianity, spectral index, and tensor modes in mixed inflaton and curvaton models
• The masses of weakly-coupled scalar fields in the early Universe
• Random potentials and cosmological attractors
• Minimal supergravity inflation without slow gravitino
• Single field inflation in supergravity with a U(1) gauge symmetry
• Inflation models and observation
• Brane inflation in background supergravity
• NATURAL INFLATION: STATUS AFTER WMAP THREE-YEAR DATA
• Gravitino problem in inflation driven by inflaton-polonyi Kähler coupling