Speaker
Joachim Kopp
(Fermilab)
Description
A fully consistent description of neutrino oscillations requires either the quantum-mechanical (QM) wave packet approach or a quantum field theoretic (QFT) treatment. We compare these two approaches to neutrino oscillations and discuss the correspondence between them. We comment on the definition of neutrino flavor eigenstates in QFT and argue that fully consistent matrix element calculations can only be carried out in the mass basis. Finally, we discuss the dynamics of neutrino wave packets at high density and temperature in the early universe.
Primary author
Joachim Kopp
(Fermilab)
Co-author
Chiu Man Ho
(Vanderbilt University, Nashville, TN)
