Parametric resonance in an expanding universe
Copyright policy )Parametric resonance in an expanding universe
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.
18 pages, Latex, 4 figures
- University of Pennsylvania United States
- Department of Physics and Astronomy United States
High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Astrophysics (astro-ph), FOS: Physical sciences, General Relativity and Quantum Cosmology (gr-qc), Astrophysics, General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Astrophysics (astro-ph), FOS: Physical sciences, General Relativity and Quantum Cosmology (gr-qc), Astrophysics, General Relativity and Quantum Cosmology
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