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Parametric amplification versus collisions: An illustrative application

D. Ahrensmeier·R. Baier·M. Dirks
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Abstract

We investigate the time dependence of the quantum statistical model with $λϕ^4/4!$ self-interaction and consider the resulting induced particle number density. For a special example in which the classical approximation exhibits parametric resonance, the effects of the back reaction and especially of collisions, treated in a perturbative way, are analysed.

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D. Ahrensmeier, R. Baier, M. Dirks. 2001-05-18. Parametric amplification versus collisions: An illustrative application. https://arxiv.org/abs/hep-ph/0105189

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