2007

Gravitational Waves From the End of Inflation: Computational Strategies

Easther, Richard, Giblin Jr, John T., Lim, Eugene A.

Understand

Parametric resonance or preheating is a plausible mechanism for bringing about the transition between the inflationary phase and a hot, radiation dominated universe.

This epoch results in the rapid production of heavy particles far from thermal equilibrium and could source a significant stochastic background of gravitational radiation.
Here, we present a numerical algorithm for computing the contemporary power spectrum of gravity waves generated in this post-inflationary phase transition for a large class of scalar-field driven inflationary models.
We explicitly calculate this spectrum for both quartic and quadratic models of chaotic inflation, and low-scale hybrid models.

Built on

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