Events Calendar
Neutrino Quantum Kinetics
Tuesday September 3, 2013
| 2:00 pm
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Presenter: | Alexey Vlasenko (UC San Diego) |
|---|---|---|
| Series: | Nuclear, Particle, Astroparticle and Cosmology (NUPAC) Seminars | |
| Abstract: | The evolution of neutrino flavor in high-density environments, such as core-collapse supernovae, is not well understood. Current approaches either ignore neutrino flavor and treat collisions via the Boltzmann equations, or ignore collisions and treat the quantum-mechanical flavor evolution of free-streaming neutrinos. In the supernova environment, both collisions and flavor transformation can occur in the same regime, so a unified approach is required. We have derived the quantum kinetic equations (QKEs), which govern the evolution of neutrino distribution functions in the presence of both collisions and coherence. The QKEs are derived from first principles, starting with quantum field theory. We find some surprises, including the possibility of coherent transformation between neutrinos and anti-neutrinos. | |
| Host: | Huaiyu (Mike) Duan | |
| Location: | PAIS-2540, PAIS | |
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