Self-induced suppression of collective neutrino oscillations in a supernova

Abstract

We investigate collective flavor oscillations of supernova neutrinos at late stages of the explosion. We first show that the frequently used single-angle (averaged coupling) approximation predicts oscillations close to, or perhaps even inside, the neutrinosphere, potentially invalidating the basic neutrino transport paradigm. Fortunately, we also find that the single-angle approximation breaks down in this regime; in the full multiangle calculation, the oscillations start safely outside the transport region. The new suppression effect is traced to the interplay between the dispersion in the neutrino-neutrino interactions and the vacuum oscillation term.

5 pages, 4 figures; updated to match the PRL version

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Cited by in corpus (31)

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• Analysis of matter suppression in collective neutrino oscillations during the supernova accretion phase
• The Neutrino Fast Flavor Instability in Three Dimensions
• Flavor instabilities in the neutrino line model
• Evolution of collisional neutrino flavor instabilities in spherically symmetric supernova models
• Fast Neutrino Flavor Conversion at Late Time
• Supernova Signatures of Neutrino Mass Ordering
• Entanglement and Many-Body effects in Collective Neutrino Oscillations
• Neutrino Flavor Evolution in Binary Neutron Star Merger Remnants
• Collision-induced flavor instability in dense neutrino gases with energy-dependent scattering
• Dynamics of fast neutrino flavor conversions with scattering effects: a detailed analysis
• Spurious instabilities in multiangle simulations of collective flavor conversion
• Possible effects of collective neutrino oscillations in the three flavor multi-angle simulations on supernova $\nu p$ process
• Entanglement and correlations in fast collective neutrino flavor oscillations
• General-Relativistic Quantum-Kinetics Neutrino Transport
• Robust measurement of supernova ${\nu }_e$ spectra with future neutrino detectors
• Fast Flavor Transformations
• Comprehensive Analyses of the Neutrino-Process in the Core-collapsing Supernova
• Neutrino flavor mixing with moments
• Anisotropic multimessenger signals from black hole neutrino-dominated accretion flows with outflows in binary compact object mergers
• Spectral swaps in a two-dimensional neutrino ring model
• Signatures of collective and matter effects on supernova neutrinos at large detectors
• Prospects for Neutrino Spin Coherence in Supernovae
• Neutrino-antineutrino oscillations induced by strong magnetic fields in dense matter
• Multipole expansion method for supernova neutrino oscillations
• Chaos in Inhomogeneous Neutrino Fast Flavor Instability
• Many-Body Simulations of the Fast Flavor Instability
• Proton-rich production of lanthanides: the $\nu i$ process
• Effects of spacetime geometry on neutrino oscillation inside a Core-Collapse Supernova