Preheating and Thermalization after Inflation

Details Preheating and Thermalization after Inflation Preheating and Thermalization after Inflation

2003-01-28

arxiv.org/abs/hep-ph/0301249v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 3 figures; invited talk at the Workshop on Strong and Electroweak Matter (SEWM 2002), October 2-5, 2002, Heidelberg,

Scientific paper

After a short review of inlationary preheating, we discuss the development of equilibrium in the frameworks of massless $\lambda \Phi^4$ model. It is shown that the process is characterised by the appearance of Kolmogorov spectra and the evolution towards thermal equilibrium follows self-similar dynamics. Simplified kinetic theory gives values for all characteristic exponents which are close to what is observed in lattice simulations. This allows estimation of the resulting reheating temperature.

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