Quantum Entanglement and Neutrino Many-Body Systems - Baha Balantekin

Entanglement of constituents of a many-body system is a recurrent feature of quantum behavior. Quantum information science provides tools, such as the entanglement entropy, to help assess the amount of entanglement in such systems. Many-neutrino systems are present in core-collapse supernovae, neutron star mergers, and the Early Universe. Recent work in applying the tools of quantum information science to the description of the entanglement in astrophysical many-neutrino systems is presented, in particular, the connection between entropy and spectral splits in collective neutrino oscillations is elaborated. Implications for element synthesis is discussed.