| Issue |
EPL
Volume 85, Number 5, March 2009
|
|
|---|---|---|
| Article Number | 50002 | |
| Number of page(s) | 6 | |
| Section | General | |
| DOI | https://doi.org/10.1209/0295-5075/85/50002 | |
| Published online | 17 March 2009 | |
Entanglement in neutrino oscillations
1
Dipartimento di Matematica e Informatica, Università degli Studi di Salerno Via Ponte don Melillo, I-84084 Fisciano (SA), Italy, EU
2
INFN Sezione di Napoli, Gruppo collegato di Salerno - Baronissi (SA), Italy, EU
3
CNR-INFM Coherentia - Napoli, Italy, EU
4
ISI Foundation for Scientific Interchange - Viale Settimio Severo 65, I-10133 Torino, Italy, EU
Corresponding author: blasone@sa.infn.it
Received:
20
November
2008
Accepted:
11
February
2009
Flavor oscillations in elementary particle physics are related to multimode entanglement of single-particle states. We show that mode entanglement can be expressed in terms of flavor transition probabilities, and therefore that single-particle entangled states acquire a precise operational characterization in the context of particle mixing. We treat in detail the physically relevant cases of two- and three-flavor neutrino oscillations, including the effective measure of CP violation. We discuss experimental schemes for the transfer of the quantum information encoded in single-neutrino states to spatially delocalized two-flavor charged-lepton states, thus showing, at least in principle, that single-particle entangled states of neutrino mixing are legitimate physical resources for quantum information tasks.
PACS: 03.65.Ud – Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.) / 03.67.Mn – Entanglement measures, witnesses, and other characterizations / 14.60.Pq – Neutrino mass and mixing
© EPLA, 2009
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