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Oscillons from Pure Natural Inflation

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arxiv 1711.10496 v2 pith:HFFJ5BTG submitted 2017-11-28 astro-ph.CO hep-phhep-th

Jeong-Pyong Hong , Masahiro Kawasaki , Masahito Yamazaki This is my paper · ORCID
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We examine the oscillon formation in a recently proposed inflation model of the pure natural inflation, where the inflaton is an axion that couples to a strongly-coupled pure Yang-Mills theory. The plateau of the inflaton potential, which is favored by recent observations, drives the fragmentation of the inflaton and can produce spatially localized oscillons. We find that the oscillons are formed for F<~ O(0.1) M_{Pl}, with F the effective decay constant of the model. We also comment on observational implications of the oscillons.

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Cited by 1 Pith paper

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  1. Fragileness of Exact I-ball/Oscillon

    hep-ph 2019-08 conditional novelty 6.0 of 10

    Exact I-ball/oscillons, despite exactly conserving their adiabatic invariant, are fragile: small perturbations grow in Floquet resonance bands and break the configuration into a smaller one.

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