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More nonlocality with less entanglement

Vidick, Thomas and Wehner, Stephanie (2011) More nonlocality with less entanglement. Physical Review A, 83 (5). Art. No. 052310. ISSN 1050-2947. doi:10.1103/PhysRevA.83.052310.

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Recent numerical investigations [K. Pál and T. Vértesi, Phys. Rev. A 82, 022116 (2010)] suggest that the I3322 inequality, arguably the simplest extremal Bell inequality after the CHSH inequality, has a very rich structure in terms of the entangled states and measurements that maximally violate it. Here we show that for this inequality the maximally entangled state of any dimension achieves the same violation than just a single EPR pair. In contrast, stronger violations can be achieved using higher dimensional states which are less entangled. This shows that the maximally entangled state is not the most nonlocal resource, even when one restricts attention to the most simple extremal Bell inequalities.

Item Type:Article
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URLURL TypeDescription Paper
Vidick, Thomas0000-0002-6405-365X
Additional Information:© 2011 American Physical Society. Published 13 May 2011; Received 29 November 2010. Published 13 May 2011. We thank Salman Beigi for interesting discussions and Oded Regev for helpful comments. T.V. was supported by ARO Grant No.W911NF-09-1-0440 and NSF Grant No.CCF-0905626. S.W. was supported by the National Research Foundation (Singapore) and the Ministry of Education (Singapore). T.V. is grateful to CQT, Singapore for hosting him while part of this work was done.
Funding AgencyGrant Number
Army Research Office (ARO)W911NF-09-1-0440
National Research Foundation (Singapore)UNSPECIFIED
Ministry of Education (Singapore)UNSPECIFIED
Issue or Number:5
Record Number:CaltechAUTHORS:20160318-115742532
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:65485
Deposited By: Melissa Ray
Deposited On:18 Mar 2016 19:54
Last Modified:10 Nov 2021 23:46

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