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Boltzmann equations for preheating

Emond, William. T.; Millington, Peter; Saffin, Paul M.


William. T. Emond

Peter Millington


We derive quantum Boltzmann equations for preheating by means of the density matrix formalism, which account for both the non-adiabatic particle production and the leading collisional processes between the produced particles. In so doing, we illustrate the pivotal role played by pair correlations in mediating the particle production. In addition, by numerically solving the relevant system of Boltzmann equations, we demonstrate that collisional processes lead to a suppression of the growth of the number density even at the very early stages of preheating.


Emond, W. T., Millington, P., & Saffin, P. M. (2018). Boltzmann equations for preheating. Journal of Cosmology and Astroparticle Physics, 2018(09), doi:10.1088/1475-7516/2018/09/041

Journal Article Type Article
Acceptance Date Sep 5, 2018
Online Publication Date Sep 27, 2018
Publication Date Sep 27, 2018
Deposit Date Oct 1, 2018
Publicly Available Date Sep 28, 2019
Journal Journal of Cosmology and Astroparticle Physics
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 2018
Issue 09
Article Number 041
Pages 041-041
Keywords Astronomy and Astrophysics
Public URL
Publisher URL


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