Parametric resonance in an expanding universe

Ivaylo Zlatev, Greg Huey, Paul J. Steinhardt

Research output: Contribution to journalArticlepeer-review

39 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)2152-2157
Number of pages6
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number4
StatePublished - 1998
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)


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