Type: Article
Publication Date: 1998-02-15
Citations: 42
DOI: https://doi.org/10.1103/physrevd.57.2152
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.