Quantum Correlation Bounds for Quantum Information Experiments Optimization: the Wigner Inequality Case

Details Quantum Correlation Bounds for Quantum Information Experiments Optimization: the Wigner Inequality Case Quantum Correlation Bounds for Quantum Information Experiments Optimization: the Wigner Inequality Case

2008-02-15

arxiv.org/abs/0802.2256v1

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevA.77.052110

Violation of modified Wigner inequality by means binary bipartite quantum system allows the discrimination between the quantum world and the classical local-realistic one, and also ensures the security of Ekert-like quantum key distribution protocol. In this paper we study both theoretically and experimentally the bounds of quantum correlation associated to the modified Wigner's inequality finding the optimal experimental configuration for its maximal violation. We also extend this analysis to the implementation of Ekert's protocol.

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