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Natural Chaotic Inflation in Supergravity

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arxiv hep-ph/0004243 v2 pith:M7ZHFDWW submitted 2000-04-27 hep-ph astro-ph

M. Kawasaki , Masahide Yamaguchi , T. Yanagida This is my paper · ORCID
classification hep-phastro-ph
keywords chaoticinflationmodelsupergravityinflatonpotentialshiftsymmetry
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We propose a chaotic inflation model in supergravity. In the model the K\"ahler potential has a Nambu-Goldstone-like shift symmetry of the inflaton chiral multiplet which ensures the flatness of the inflaton potential beyond the Planck scale. We show that the 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 universe in the framework of supergravity.

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Forward citations

Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Extending the Dynamical Systems Toolkit: Coupled Fields in Multiscalar Dark Energy

    hep-th 2025-09 unverdicted novelty 7.0 of 10

    New dynamical systems variables for coupled axion-saxion fields yield a general non-geodesicity expression at fixed points and identify genuinely non-geodesic attractors under exponential couplings.

  2. GUT-Scale Smooth Hybrid Inflation with a Stabilized Modulus in Light of ACT and SPT Data

    hep-ph 2025-10 conditional novelty 6.0 of 10

    A smooth hybrid inflation model, augmented with a stabilized modulus, reproduces the spectral index measured by ACT and SPT while keeping Higgs v.e.v.s at the GUT scale.

  3. How Accidental was Inflation?

    hep-ph 2025-04 conditional novelty 5.0 of 10

    A small, string-theoretically plausible deformation of the Starobinsky potential (lambda about 0.9999) fits the Planck plus ACT and DESI value of the spectral tilt better than the pure Starobinsky model, and introduce...

  4. Starobinsky Inflation with T-Model Kaehler Geometries

    hep-ph 2025-02 conditional novelty 5.0 of 10

    Starobinsky-like inflation is embedded in supergravity via T-model Kähler potentials, yielding ns in the range 0.961 to 0.969 and a tensor-to-scalar ratio that rises with Kähler curvature.

  5. The Scale Factor Potential Approach to Inflation

    gr-qc 2019-09 reject novelty 3.0 of 10

    The paper reparametrizes slow-roll inflation through a scale factor potential and constructs an example potential, but the chosen 60 e-fold branch is inconsistent with its own first-minimum end condition.

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