On the oscillation-driven cosmological expansion at the post-inflation stage

Abstract

Dynamics of the inflaton scalar field oscillating around a minimum of the singular potentials in the expanding Universe is investigated. Asymptotic formulas are obtained describing the cosmological expansion at the late times. The problem of stability of the oscillations considered and the related phenomenon of the field fragmentation are briefly discussed.

8 pages, 4 figures

References in corpus (4)

• Singular Inflation
• Late-time oscillatory behaviour for self-gravitating scalar fields
• Dynamical Fractional Chaotic Inflation -- Dynamical Generation of a Fractional Power-Law Potential for Chaotic Inflation
• Gravipulsons

Cited by in corpus (1)

• Analytical study of the parametric instability of an oscillating scalar field in an expanding universe