Scrambling, Localization, Entanglement & Chaotic Signatures in Many-Body Neutrino Systems

In extreme astrophysical environments like core collapse supernovae, collective neutrino flavor oscillations can regulate explosion dynamics and resulting nucleosynthesis. Many-body investigations of beyond-mean-field correlations have progressed significantly, supported by quantum computers and quantum information-driven analyses. This talk focuses on tensor-network and exact diagonalization computations, and linear stability analyses of many-body fast-flavor conversions, which have revealed distinct timescales of Loschmidt Echo crossing times (indicators of a nonequilibrium system's dynamical quantum phase transitions) and nontrivial scrambling behavior. Novel connections to out-of-time-ordered-correlator dynamics are discussed, as well as non-trivial entanglement structures and signatures of quantum chaotic behavior.