Volume 106, Number 3, May 2014
|Number of page(s)||6|
|Published online||13 May 2014|
A field-theoretical approach to entanglement in neutrino mixing and oscillations
1 Dipartimento di Fisica, Università di Salerno - Via Giovanni Paolo II, 132, I-84084 Fisciano (SA), Italy
2 INFN, Sezione di Napoli, Gruppo collegato di Salerno - Salerno, Italy
3 Dipartimento di Ingegneria Industriale, Università di Salerno - Via Giovanni Paolo II, 132, I-84084 Fisciano (SA), Italy
4 CNISM, Unità di Salerno - I-84084 Fisciano (SA), Italy
Received: 29 January 2014
Accepted: 22 April 2014
The phenomena of particle mixing and flavor oscillations in elementary-particle physics can be addressed from the point of view of quantum information theory, and described in terms of multi-mode entanglement of single-particle states. In this paper we show that such a description can be extended to the domain of quantum field theory, where we uncover a fine structure of quantum correlations associated with multi-mode, multi-particle entanglement. By means of an entanglement measure based on the linear entropies associated with all the possible bipartitions, we analyze the entanglement in the states of flavor neutrinos and antineutrinos. Remarkably, we show that the entanglement is connected with experimentally measurable quantities, i.e. the variances of the lepton numbers and charges.
PACS: 03.65.Ud – Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.) / 14.60.Pq – Neutrino mass and mixing / 03.70.+k – Theory of quantized fields
© EPLA, 2014
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.