Unified criteria for multipartite quantum nonlocality

E. G. Cavalcanti, Q. Y. He, M. D. Reid, and H. M. Wiseman

Phys. Rev. A 84, 032115 – Published 19 September 2011

Abstract

Wiseman and co-workers [H. M. Wiseman, S. J. Jones, and A. C. Doherty, Phys. Rev. Lett. 98, 140402, (2007)] proposed a distinction among the nonlocality classes of Bell's nonlocality, Einstein-Podolsky-Rosen (EPR) paradox or steering, and entanglement based on whether or not an overseer trusts each party in a bipartite scenario where they are asked to demonstrate entanglement. Here we extend that concept to the multipartite case and derive inequalities that progressively test for those classes of nonlocality, with different thresholds for each level. This framework includes the three classes of nonlocality above in special cases and introduces a family of others.

Received 28 February 2011

DOI:https://doi.org/10.1103/PhysRevA.84.032115

Authors & Affiliations

E. G. Cavalcanti¹, Q. Y. He², M. D. Reid², and H. M. Wiseman^1,3

¹Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia
²Centre for Atom Optics and Ultrafast Spectroscopy and Centre for Quantum-Atom Optics (Australian Research Council), Swinburne University of Technology, Melbourne, Australia
³Centre for Quantum Computation and Communication Technology (Australian Research Council), Griffith University, Brisbane, Queensland 4111, Australia

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Vol. 84, Iss. 3 — September 2011

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