| Issue |
EPL
Volume 132, Number 3, November 2020
|
|
|---|---|---|
| Article Number | 31002 | |
| Number of page(s) | 5 | |
| Section | The Physics of Elementary Particles and Fields | |
| DOI | https://doi.org/10.1209/0295-5075/132/31002 | |
| Published online | 29 December 2020 | |
Quantum correlations in neutrino oscillation: Coherence and entanglement
1 Department of Physics, University of Qom - Qom 371614-6611, Iran
2 University of Kashan - Km 6 Ravand Road, Kashan 87317-51167, Iran
(a) mettefaghi@qom.ac.ir
(b) ramarani@kashanu.ac.ir
Received: 6 July 2020
Accepted: 12 October 2020
In this paper, we consider the quantum correlations, coherence and entanglement, in neutrino oscillation. We find that the l1-norm as a coherence measure is equal to the sum of the three possible concurrences for measuring the entanglement among different flavor modes which were calculated in the paper by Blasone M. et al., EPL, 112 (2015) 20007. Our result shows that the origin of the flavor entanglement in neutrino oscillation is the same as that of quantum coherence. Furthermore, in the wave packet framework, the variation of the l1-norm is investigated by varying the wave packet width $\sigma_{x}$ . As expected, the amount of coherence increases by $\sigma_{x}$ due to the increase in overlapping of the mass eigenstates.
PACS: 12.15.Ff – Quark and lepton masses and mixing / 03.65.Ud – Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.)
© 2020 EPLA
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