In anisotropic neutrino gases, νν-bar pairing instabilities emerge when the excessive pair-occupation number distribution changes sign, producing pair conversions at growth rates comparable to fast flavor instabilities.
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Using a She-Leveque cascade for intermittent turbulence in supernovae, the model predicts a fast flavor conversion fraction of approximately 0.455 and heating corrections of 4-6% whose sign depends on the neutrino spectral hierarchy.
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Collective neutrino-antineutrino pair oscillations
In anisotropic neutrino gases, νν-bar pairing instabilities emerge when the excessive pair-occupation number distribution changes sign, producing pair conversions at growth rates comparable to fast flavor instabilities.
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Intermittent Turbulence, Fast Flavor Conversion, and Observable Supernova Probes
Using a She-Leveque cascade for intermittent turbulence in supernovae, the model predicts a fast flavor conversion fraction of approximately 0.455 and heating corrections of 4-6% whose sign depends on the neutrino spectral hierarchy.