Inflationary models with a flat potential enforced by non-Abelian discrete gauge symmetries

2000/02/29 by Ewan D. Stewart, E. D. Stewart, J. D. Cohn · 2 citations
Mathematics · Physics and Astronomy · #Abelian group #Black Holes and Theoretical Physics #Classical mechanics #Consistency (knowledge bases) #Cosmology and Gravitation Theories #Field (mathematics) #Gauge (firearms) #Gauge theory #Geometry #Gravitation #Homogeneous space #Inflation (cosmology) #Inflaton #Mathematical physics #Mathematics #Particle physics theoretical and experimental studies #Physics #Pure mathematics #Theoretical physics #astro-ph #hep-ph #hep-th

paper · pdf · doi:10.1103/physrevd.63.083519

published as Phys.Rev. D63 (2001) 083519 · 24 pages, uses revtex.sty, submitted to PRD (Nov. 1999) Final version to appear in PRD. Background information on supergravity expanded

arxiv created 2001/02/05 · openalex publication_date 2001/03/27 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Non-Abelian discrete gauge symmetries can provide the inflaton with a flat potential even when one takes into account gravitational strength effects. The discreteness of the symmetries also provide special field values where inflation can end via a hybrid-type mechanism. An interesting feature of this method is that it can naturally lead to extremely flat potentials and so, in principle, to inflation at unusually low energy scales. Two examples of effective field theories with this mechanism are given: one with a hybrid exit and one with a mutated hybrid exit. They include an explicit example in which the single field consistency condition is violated.

Citations

• Superheavy dark matter and thermal inflation
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• The spectrum of cosmological perturbations produced by a multi-component inflaton to second order in the slow-roll approximation
• Affleck-Dine baryogenesis after thermal inflation
• Cosmological implications of dynamical supersymmetry breaking
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• Spectrum of background x-rays from moduli dark matter
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• Dynamics of phase transition in the new inflationary universe scenario and generation of perturbations
• Preserving flat directions during inflation
• A General Analytic Formula for the Spectral Index of the Density Perturbations produced during Inflation
• Particle Physics Models of Inflation and the Cosmological Density Perturbation
• More varieties of hybrid inflation
• The Case for a Positive Cosmological Lambda-term

Cited by

• Generating the curvature perturbation without an inflaton
• The masses of weakly-coupled scalar fields in the early Universe