期刊
PHYSICAL REVIEW D
卷 92, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.92.021702
关键词
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资金
- German Science Foundation (DFG) within the Collaborative Research Center
- Early Universe in Germany
- Italian Ministero dell'Istruzione, Universita e Ricerca (MIUR)
- Istituto Nazionale di Fisica Nucleare (INFN) through the Theoretical Astroparticle Physics projects in Italy
- INFN
- European Union [PITN-GA-2011-289442]
We consider a simplified model for self-induced flavor conversions of a dense neutrino gas in two dimensions, showing new solutions that spontaneously break the spatial symmetries of the initial conditions. As a result of the symmetry breaking induced by the neutrino-neutrino interactions, the coherent behavior of the neutrino gas becomes unstable. This instability produces large spatial variations in the flavor content of the ensemble. Furthermore, it also leads to the creation of domains of different net lepton number flux. The transition of the neutrino gas from a coherent to incoherent behavior shows an intriguing analogy with a streaming flow changing from laminar to turbulent regime. These findings would be relevant for the self-induced conversions of neutrinos streaming-off a supernova core.
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