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SUMMARY:Self-induced temporal instability from a neutrino antenna
DTSTART;VALUE=DATE-TIME:20160526T105000Z
DTEND;VALUE=DATE-TIME:20160526T111000Z
DTSTAMP;VALUE=DATE-TIME:20260504T074300Z
UID:indico-contribution-2737@indico.ific.uv.es
DESCRIPTION:Speakers: Francesco Capozzi (Università degli Studi di Padova
  - INFN Padova)\nIt has been recently shown that the flavor composition of
  a self-interacting neutrino gas can spontaneously acquire a time-dependen
 t pulsating component during its flavor evolution. In this context\, we pe
 rform a more detailed study of this effect in a model where neutrinos are 
 assumed to be emitted in a two-dimensional plane from an infinite line tha
 t acts as a neutrino antenna. We consider several examples with varying ma
 tter and neutrino densities and find that temporal instabilities with vari
 ous frequencies are excited in a cascade. We compare the numerical calcula
 tions of the flavor evolution with the predictions of linearized stability
  analysis of the equations of motion. We show that large flavor conversion
 s can take place if some of the temporal modes are unstable for long enoug
 h\, and that this can happen even if the matter and neutrino densities are
  changing\, as long as they vary slowly.\n\nhttps://indico.ific.uv.es/even
 t/2534/contributions/2737/
LOCATION:
URL:https://indico.ific.uv.es/event/2534/contributions/2737/
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