Quadratic reheating
Abstract
The reheating process for the inflationary scenario is investigated phenomenologically. The decay of the oscillating massive inflaton field into light bosons is modeled after an out of equilibrium mixture of interacting fluids within the framework of irreversible thermodynamics. Self-consistent, analytic results for the evolution of the main macroscopic magnitudes like temperature and particle number densities are obtained. The models for linear and quadratic decay rates are investigated in the quasiperfect regime. The linear model is shown to reheat very slowly while the quadratic one is shown to yield explosive particle and entropy production. The maximum reheating temperature is reached much faster and its magnitude is comparable with the inflaton mass.
Cite
@article{arxiv.gr-qc/9904066,
title = {Quadratic reheating},
author = {Luis P. Chimento and Alejandro S. Jakubi},
journal= {arXiv preprint arXiv:gr-qc/9904066},
year = {2009}
}
Comments
21 pages, LaTeX 2.09, 4 figures. To be published in International Journal of Modern Physics D