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Entanglement in a QFT Model of Neutrino Oscillations

2014; Hindawi Publishing Corporation; Volume: 2014; Linguagem: Inglês

10.1155/2014/359168

1687-7365

Massimo Blasone, Fabio Dell’Anno, Silvio De Siena, Fabrizio Illuminati,

Quantum Mechanics and Applications

Tools of quantum information theory can be exploited to provide a convenient description of the phenomena of particle mixing and flavor oscillations in terms of entanglement, a fundamental quantum resource. We extend such a picture to the domain of quantum field theory where, due to the nontrivial nature of flavor neutrino states, the presence of antiparticles provides additional contributions to flavor entanglement. We use a suitable entanglement measure, the concurrence, that allows extracting the two-mode (flavor) entanglement from the full multimode, multiparticle flavor neutrino states.