Probing Quantum Entanglement in a Gas of Oscillating Neutrinos

In environments where neutrinos are present in large number densities or fluxes — such as supernovae, compact object mergers, and the early universe — coherent neutrino-neutrino interactions can lead to interesting collective effects. We have explored corrections to standard “mean field” treatments of such phenomena, using a simple system to investigate quantum correlations (i.e., entanglement) between the interacting neutrinos.

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