Quantum coherence in neutrino oscillation in matter

A closer and more detailed study of neutrino oscillation, in addition to assisting us in founding physics beyond the standard model, can potentially be used to understand the fundamental aspects of quantum mechanics. In particular, we know that the neutrino oscillation occurs because the quantum sta...

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Bibliographic Details
Published in:European physical journal plus 2022-04, Vol.137 (4), p.488, Article 488
Main Authors: Ravari, Z. Askaripour, Ettefaghi, M. M., Miraboutalebi, S.
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Atomic
Coherence
Complex Systems
Condensed Matter Physics
Density
Eigenvalues
Eigenvectors
Energy
Localization
Mathematical and Computational Physics
Molecular
Neutrinos
Optical and Plasma Physics
Physics
Physics and Astronomy
Probability
Quantum mechanics
Quantum phenomena
Quantum physics
Regular Article
Theoretical
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Summary:A closer and more detailed study of neutrino oscillation, in addition to assisting us in founding physics beyond the standard model, can potentially be used to understand the fundamental aspects of quantum mechanics. In particular, we know that the neutrino oscillation occurs because the quantum states of the produced and detected neutrinos are a coherent superposition of the mass eigenstates, and this coherency is maintained during the propagation due to the small mass difference of neutrinos. In this paper, we consider the decoherence due to the neutrino interaction in the material medium with constant density in addition to the decoherence coming from the localization properties. For this purpose, we use l 1 -norm in order to quantify the coherence and investigate its dependence on the matter density. According to our results, in general, the coherence in material medium is less than vacuum. However, there exist exceptions; for some matter densities, the localization coherence lengths become infinite. So, for these cases, l 1 -norm in matter is more than the vacuum.
ISSN:2190-5444
2190-5444
DOI:10.1140/epjp/s13360-022-02717-4