A new approach to collective neutrino oscillations: The "once-in-a-lifetime encounter" model

  • Nuclear, Particle, Astroparticle and Cosmology (NUPAC) Seminars

November 5, 2024 2:00 PM - November 5, 2024 3:00 PM
PAIS 3205

Host:
Huaiyu Duan
Presenter:
Anson Kost (UNM)
The standard approach to collective neutrino oscillations has been called into question because it does not account for entanglement. In response, we have proposed the "once-in-a-lifetime encounter” model, which aims to describe how neutrinos become entangled as they interact with each other. Such entanglement could occur in core-collapse supernovae and neutron star mergers, affecting the way they explode or merge and their role as the primary source of the universe’s heaviest elements. I will present the model and its predictions in some simple scenarios in which neutrinos interact with each other. If time permits, I will also talk about a parallel approach called “miscidynamics,” which describes how entanglement can adiabatically drive the evolution of interacting neutrinos.

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