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Title: Violation of Leggett-Garg inequalities for quantum-classical hybrids
Authors: Łobejko, Marcin
Dajka, Jerzy
Keywords: quantum system; quantum optics
Issue Date: 2015
Citation: Journal of Physics: Conference Series, Vol. 626 (2015), art. no 012038
Abstract: Violation of Leggett{Garg inequalities can serve as a signature of a failure of (macroscopic) realism. We investigate violation of the simplest Leggett{Garg inequality for a qubit coupled to an integer j spin (angular momentum). Such a system e ectively reveals quantum{classical hybrid behavior in the limit of large j values. We show that a maximal violation of the Leggett{ Garg inequality is larger for quantum{classical hybrids than for fully quantum systems.
DOI: 10.1088/1742-6596/626/1/012038
ISSN: 1742-6588
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