Modulational instabilities in neutrino--anti-neutrino interactions

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dc.creatorMarklund, Mattias
dc.creatorShukla, Padma K.
dc.creatorBetschart, Gerold
dc.creatorStenflo, Lennart
dc.creatorAnderson, Dan
dc.creatorLisak, Mietek
dc.date2003-05-31
dc.date2003-10-22
dc.date.accessioned2026-07-07T10:26:57Z
dc.date.available2026-07-07T10:26:57Z
dc.descriptionWe analyze the collective behavior of neutrinos and antineutrinos in a dense background. Using the Wigner transform technique, it is shown that the interaction can be modelled by a coupled system of nonlinear Vlasov-like equations. From these equations, we derive a dispersion relation for neutrino-antineutrino interactions on a general background. The dispersion relation admits a novel modulational instability. The results are examined, together with a numerical example, and we discuss the induced density inhomogeneities using parameters relevant to the early Universe.
dc.description16 pages (extended and revised), 4 figures
dc.identifierhttps://arxiv.org/abs/astro-ph/0306013
dc.identifierhttp://arxiv.org/abs/astro-ph/0306013
dc.identifierJ.Exp.Theor.Phys.99:9-18,2004; Zh.Eksp.Teor.Fiz.99:14-25,2004
dc.identifierdoi:10.1134/1.1787073
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177018
dc.subjectAstrophysics
dc.titleModulational instabilities in neutrino--anti-neutrino interactions
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