Abstract.
Approximations based on the 2PI effective action are used to investigate the process of equilibration in ϕ4 theory in 3+1 dimensions, both in the symmetric and broken phase. A special emphasis is put on the study of the kinetic and chemical equilibration.
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Arrizabalaga, A. Kinetic and chemical equilibration in scalar ϕtheory⋆ . Eur. Phys. J. A 29, 101–105 (2006). https://doi.org/10.1140/epja/i2005-10306-9
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DOI: https://doi.org/10.1140/epja/i2005-10306-9