Legget-Garg inequality for a two-mode entangled bosonic system

We discuss a model of two nonlinear quantum oscillators mutually coupled by linear interaction and continuously driven by external coherent excitation. For such a system, we analyze temporal correlations. We examine the violation of the Leggett-Garg inequality analysing various scenarios of measurem...

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Bibliographic Details
Published in:Optics express 2024-03, Vol.32 (6), p.9946-9957
Main Authors: Kalaga, Joanna K, Kowalewska-Kudłaszyk, Anna, Leoński, Wiesław, Peřina, Jan
Format: Article
Language:English
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Summary:We discuss a model of two nonlinear quantum oscillators mutually coupled by linear interaction and continuously driven by external coherent excitation. For such a system, we analyze temporal correlations. We examine the violation of the Leggett-Garg inequality analysing various scenarios of measurements. These scenarios are based on the projection onto different Bell states. We show that the possibility of violation of the Leggett-Garg inequalities is associated with the use of different projectors.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.513855