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arXiv:quant-ph/0505098 · Physical Review Letters

All-Versus-Nothing Nonlocality Test of Quantum Mechanics by Two-Photon Hyperentanglement

C. Cinelli, Marco Barbieri, Riccardo Perris, Paolo Mataloni, F. De Martini

Published Dec 9, 2005• 96 citations
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Abstract

We report the experimental realization and the characterization of polarization and momentum hyperentangled two-photon states, generated by a new parametric source of correlated photon pairs. By adoption of these states an "all-versus-nothing" test of quantum mechanics was performed. The two-photon hyperentangled states are expected to find at an increasing rate a widespread application in state engineering and quantum information.

DOI
10.1103/physrevlett.95.240405

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Two photon states entangled in polarization and momentum, hyper-entangled, have been generated by using linear optics and a single Type I nonlinear crystal. These states have been completely characterized and their nonlocal behaviour have been verified by independent Bell's inequalities tests performed in the two degrees of freedom of entanglement and by an "all versus nothing" test of local realism. The manipulation of these states may represent a useful control in quantum state engineering and Bell state measurements and, more in general, in Quantum Information applications.