Landau-Zener problem in a three-level neutrino system with non-linear time dependence

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dc.creatorKeränen, P.
dc.creatorMaalampi, J.
dc.creatorMyyryläinen, M.
dc.creatorRiittinen, J.
dc.date2006-11-03
dc.date2007-02-01
dc.date.accessioned2026-07-07T11:02:06Z
dc.date.available2026-07-07T11:02:06Z
dc.descriptionWe consider the level-crossing problem in a three-level system with non-linearly time-varying Hamiltonian (time-dependence $t^{-3}$). We study the validity of the so-called independent crossing approximation in the Landau-Zener model by making comparison with results obtained numerically in density matrix approach. We also demonstrate the failure of the so-called "nearest zero" approximation of the Landau-Zener level-crossing probability integral.
dc.description11 pages, 3 figures. To be published in Physical Review D
dc.identifierhttps://arxiv.org/abs/hep-ph/0611037
dc.identifierhttp://arxiv.org/abs/hep-ph/0611037
dc.identifierPhys.Rev.D75:033006,2007
dc.identifierdoi:10.1103/PhysRevD.75.033006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188148
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.subjectQuantum Physics
dc.titleLandau-Zener problem in a three-level neutrino system with non-linear time dependence
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