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Quantum correlations in neutrino oscillations in curved spacetime

Dixit, Khushboo and Naikoo, Javid and Mukhopadhyay, Banibrata and Banerjee, Subhashish (2019) Quantum correlations in neutrino oscillations in curved spacetime. In: PHYSICAL REVIEW D, 100 (5).

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Official URL: https://dx.doi.org/10.1103/PhysRevD.100.055021


Gravity induced neutrino-antineutrino oscillations are studied in the context of one- and two-flavor scenarios. This allows one to investigate the particle-antiparticle correlations in two and four level systems, respectively. Flavor entropy is used to probe the entanglement in the system. The well known witnesses of nonclassicality such as Mermin and Svetlichny inequalities are investigated. Since the extent of neutrino-antineutrino oscillation is governed by the strength of the gravitational field, the behavior of nonclassicality shows interesting features as one varies the strength of the gravitational field. Specifically, the suppression of the entanglement with the increase of the gravitational field is observed which is witnessed in the form of decrease in the flavor entropy of the system. The features of the Mermin and the Svetlichny inequalities allow one to make statements about the degeneracy of neutrino mass eigenstates.

Item Type: Journal Article
Additional Information: copyright for this article belongs to AMER PHYSICAL SOC
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 30 Oct 2019 10:44
Last Modified: 30 Oct 2019 10:44
URI: http://eprints.iisc.ac.in/id/eprint/63718

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