Oscillons from Pure Natural Inflation

Abstract

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.

7 pages, 4 figures

References in corpus (8)

• Gravitational-wave sensitivity curves
• Self-resonance after inflation: oscillons, transients and radiation domination
• Inflaton Fragmentation and Oscillon Formation in Three Dimensions
• Small amplitude quasi-breathers and oscillons
• Generation of Coherent Structures After Cosmic Inflation
• Pure Natural Inflation
• No quasi-stable scalaron lump forms after $R^2$ inflation
• Inflaton fragmentation in E-models of cosmological $\alpha$-attractors

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