Leggett-type $N$-partite scenarios for testing nonlocal realistic theory

• URL: http://arxiv.org/abs/2108.03665v1
• Date: Sun, 8 Aug 2021 15:20:00 GMT
• Title: Leggett-type $N$-partite scenarios for testing nonlocal realistic theory
• Authors: Abdul Sattar Khan and Ma-Cheng Yang and Cong-Feng Qiao
• Abstract summary: We extend the Leggett-type nonlocal realistic model to arbitrary $N$-partite systems with polarizer settings. Our results, say the nonlocal realism in multipartite systems, are testable in experiment.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The nonlocal realistic theory might be the last cornerstone of classical physics confronting to the quantum theory, which was found mostly untenable in the bipartite system [Nature 446, 871 (2007)]. We extend the Leggett-type nonlocal realistic model to arbitrary $N$-partite systems with polarizer settings, and obtain some stronger inequalities to distinguish quantum mechanics from nonlocal realistic theories. For illustration, with certain measurement settings the quantum violations of Leggett-type inequalities are found for Greenberger-Horne-Zeilinger (GHZ) state. Our results, say the nonlocal realism in multipartite systems, are testable in experiment.

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