Thermalization of fermionic quantum fields

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dc.creatorBerges, J.
dc.creatorBorsanyi, Sz.
dc.creatorSerreau, J.
dc.date2002-12-31
dc.date2003-03-20
dc.date.accessioned2026-07-07T11:09:19Z
dc.date.available2026-07-07T11:09:19Z
dc.descriptionWe solve the nonequilibrium dynamics of a 3+1 dimensional theory with Dirac fermions coupled to scalars via a chirally invariant Yukawa interaction. The results are obtained from a systematic coupling expansion of the 2PI effective action to lowest non-trivial order, which includes scattering as well as memory and off-shell effects. The dynamics is solved numerically without further approximation, for different far-from-equilibrium initial conditions. The late-time behavior is demonstrated to be insensitive to the details of the initial conditions and to be uniquely determined by the initial energy density. Moreover, we show that at late time the system is very well characterized by a thermal ensemble. In particular, we are able to observe the emergence of Fermi--Dirac and Bose--Einstein distributions from the nonequilibrium dynamics.
dc.description38 pages, 8 figures. Minor corrections
dc.identifierhttps://arxiv.org/abs/hep-ph/0212404
dc.identifierhttp://arxiv.org/abs/hep-ph/0212404
dc.identifierNucl.Phys.B660:51-80,2003
dc.identifierdoi:10.1016/S0550-3213(03)00261-X
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/190423
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.subjectNuclear Theory
dc.titleThermalization of fermionic quantum fields
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