Parametric resonance in an expanding universe

Ivaylo Zlatev, Greg Huey, and Paul J. Steinhardt
Phys. Rev. D 57, 2152 – Published 15 February 1998
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Abstract

Parametric resonance has been discussed as a mechanism for copious particle production following inflation. Here we present a simple and intuitive calculational method for estimating the efficiency of parametric amplification as a function of parameters. This is important for determining whether resonant amplification plays an important role in the reheating process. We find that significant amplification occurs only for a limited range of couplings and interactions.

  • Received 16 June 1997

DOI:https://doi.org/10.1103/PhysRevD.57.2152

©1998 American Physical Society

Authors & Affiliations

Ivaylo Zlatev, Greg Huey, and Paul J. Steinhardt

  • Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104

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Issue

Vol. 57, Iss. 4 — 15 February 1998

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