A nonequilibrium renormalization group approach to turbulent reheating

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dc.creatorZanella, Juan
dc.creatorCalzetta, Esteban
dc.date2006-11-27
dc.date2007-02-19
dc.date.accessioned2026-07-07T11:02:15Z
dc.date.available2026-07-07T11:02:15Z
dc.descriptionWe use nonequilibrium renormalization group (RG) techniques to analyze the thermalization process in quantum field theory, and by extension reheating after inflation. Even if at a high scale $Λ$ the theory is described by a non-dissipative $λϕ^{4}$ theory, the RG running induces nontrivial noise and dissipation. For long wavelength, slowly varying field configurations, the noise and dissipation are white and ohmic, respectively. The theory will then tend to thermalize to an effective temperature given by the fluctuation-dissipation theorem.
dc.description8 pages, 2 figures; to appear in J. Phys. A; more detailed account of the calculation of the noise and dissipation kernels
dc.identifierhttps://arxiv.org/abs/hep-ph/0611321
dc.identifierhttp://arxiv.org/abs/hep-ph/0611321
dc.identifierJ.Phys.A40:6927-6933,2007; J.Phys.A40:6927-6934,2007
dc.identifierdoi:10.1088/1751-8113/40/25/S41
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188197
dc.subjectHigh Energy Physics - Phenomenology
dc.titleA nonequilibrium renormalization group approach to turbulent reheating
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