5th Workshop on Dark Matter, Neutrino Physics and Astrophysics (CETUP) / 9th International Conference on Interconnections between Particle Physics and Cosmology (PPC), South-Dakota, United States Of America, 15 - 17 July 2015, vol.1743
Collective neutrino oscillations in a core collapse supernova is a many-body phenomenon which can transform the neutrino energy spectra through emergent effects. One example of this behavior is the neutrino spectral swaps in which neutrinos of different flavors partially or completely exchange their spectra. In this talk, we address the question of how model dependent this behavior is. In particular, we demonstrate that these swaps may be independent of the mean field approximation that is typically employed in numerical treatments by showing an example of a spectral swap in the exact many-body picture.