Options
Asymmetric multipartite Greenberger-Horne-Zeilinger states and Bell inequalities
Citation
Gosal, D., Kaszlikowski, D., Kwek, L. C., Żukowski, M., & Oh, C. H. (2004). Asymmetric multipartite Greenberger-Horne-Zeilinger states and Bell inequalities. Physical Review A, 70(4), Article 042106. https://doi.org/10.1103/PhysRevA.70.042106
Abstract
We study the multiparticle generalized GHZ states. It has been shown that for an odd number of qubits and for a specific range of parameters, they do not violate any Bell inequality for correlation functions. We show here both analytically and numerically that, nevertheless, such states violate local realism, once a more detailed analysis of the correlations is made than the one allowed by correlation functions. The results imply that multiparticle Clauser-Horne-type inequalities involving probabilities are stronger tools for analyzing violations of local realism in multiparticle systems than inequalities involving the correlation functions.
Date Issued
2004
Publisher
American Physical Society
Journal
Physical Review A
DOI
10.1103/PhysRevA.70.042106