Preheating and Reheating in Inflationary Cosmology: a pedagogical survey

Abstract

Recent progress in the preheating phenomena for inflationary cosmology is reviewed. We first discuss estimates of the preheating time scale and particle production at the early stages of parametric amplification within the Mathieu and Lam'e approximations and we analyze their precision and limitations. The necessity of self-consistent calculations including the non-linearity of the field theory equations in an energy conserving scheme is stressed. The large N calculations including the field back-reaction are reviewed. For spontaneously broken theories the issue of symmetry restoration is analyzed. A discussion of the possibility and criterion for symmetry restoration is presented.

Latex file, expanded (+50%) and improved version, eight pages and thirteen .ps figures. To appear in the Proceedings of the Paris Euronetwork Meeting `String Gravity'

References in corpus (1)

• Analytic and Numerical Study of Preheating Dynamics

Cited by in corpus (5)

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• Preheating in an Expanding Universe: Analytic Results for the Massless Case
• Reconciling low multipole anomalies and reheating in single field inflationary models
• Reheating constraints on modified quadratic chaotic inflation
• A hierarchy of sum-rules in out of equilibrium QFT