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Chen Q, Yu S, Zhang C, et al. Test of genuine multipartite nonlocality without inequalities. Phys Rev Lett. 2014;112(14):140404doi: 10.1103/PhysRevLett.112.140404.
Chen, Q., Yu, S., Zhang, C., Lai, C. H., & Oh, C. H. (2014). Test of genuine multipartite nonlocality without inequalities. Physical review letters, 112(14), 140404. https://doi.org/10.1103/PhysRevLett.112.140404
Chen, Qing, et al. "Test of genuine multipartite nonlocality without inequalities." Physical review letters vol. 112,14 (2014): 140404. doi: https://doi.org/10.1103/PhysRevLett.112.140404
Chen Q, Yu S, Zhang C, Lai CH, Oh CH. Test of genuine multipartite nonlocality without inequalities. Phys Rev Lett. 2014 Apr 11;112(14):140404. doi: 10.1103/PhysRevLett.112.140404. Epub 2014 Apr 10. PMID: 24765926.
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Phys Rev Lett. 2014 Apr 11;112(14):140404. doi: 10.1103/PhysRevLett.112.140404. Epub 2014 Apr 10.

Test of genuine multipartite nonlocality without inequalities.

Physical review letters

Qing Chen, Sixia Yu, Chengjie Zhang, C H Lai, C H Oh

Affiliations

  1. Centre for quantum technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543, Singapore.
  2. Centre for quantum technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543, Singapore and Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
  3. Centre for quantum technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543, Singapore and Physics department, National University of Singapore, 3 Science Drive 2, Singapore 117543, Singapore.

PMID: 24765926 DOI: 10.1103/PhysRevLett.112.140404

Abstract

In this Letter we propose a set of conditions on the joint probabilities as a test of genuine multipartite nonlocality without inequality. Our test is failed by all nonsignaling local models in which even nonlocal correlations among some observables (not all) are allowed as long as these correlations respect the nonsignaling principle. A pass of our test by a state therefore indicates that this state cannot be simulated by any nonsignaling local models; i.e., the state exhibits genuine multipartite nonlocality. It turns out that all entangled symmetric n-qubit (n≥3) states pass our test and therefore are n-way nonlocal. Also we construct two Bell-type inequalities from our proposed test whose violations indicate genuine multipartite nonlocal correlations.

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