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Phys. Rev. Lett. 92, 060404 (2004) [4 pages]

Experimental Evidence for Bounds on Quantum Correlations

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F. A. Bovino* and G. Castagnoli
Elsag spa, Via Puccini 2-16154 Genova, Italy

I. P. Degiovanni and S. Castelletto
Istituto Elettrotecnico Nazionale G. Ferraris, Strada delle Cacce 91-10135 Torino, Italy

Received 13 October 2003; published 12 February 2004

We implemented the experiment proposed by Cabello in the preceding Letter to test the bounds of quantum correlation. As expected from the theory we found that, for certain choices of local observables, Tsirelson’s bound of the Clauser-Horne-Shimony-Holt inequality (2√2) is not reached by any quantum states.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.92.060404
DOI:
10.1103/PhysRevLett.92.060404
PACS:
03.65.Ud, 03.65.Ta, 42.50.Xa, 42.65.Lm

*Electronic address: fabio.bovino@elsag.it

Electronic address: degio@ien.it