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

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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.
Publisher
AMERICAN PHYSICAL SOC
Issue Date
2001-04
Language
English
Article Type
Article
Keywords

COSMOLOGICAL MODULI PROBLEM; SUPERHEAVY DARK-MATTER; SUPERSYMMETRY BREAKING THEORIES; AFFLECK-DINE BARYOGENESIS; LARGE-SCALE STRUCTURE; THERMAL INFLATION; HYBRID INFLATION; OBSERVATIONAL CONSTRAINTS; DENSITY PERTURBATIONS; QUANTUM CORRECTIONS

Citation

PHYSICAL REVIEW D, v.63, no.8

ISSN
0556-2821
URI
http://hdl.handle.net/10203/83871
Appears in Collection
PH-Journal Papers(저널논문)
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