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Title

Detection-Loophole-Free Test of Quantum Nonlocality, and Applications

Authors
Christensen, B. G.
McCusker, K. T.
Altepeter, J.
Calkins, B.
Gerrits, T.
Lita, A.
Miller, A.
Shalm, L. K.
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Published in Physical Review Letters. 2013, vol. 111, p. 130406
Abstract We present a source of entangled photons that violates a Bell inequality free of the "fair-sampling" assumption, by over 7 standard deviations. This violation is the first experiment with photons to close the detection loophole, and we demonstrate enough "efficiency" overhead to eventually perform a fully loophole-free test of local realism. The entanglement quality is verified by maximally violating additional Bell tests, testing the upper limit of quantum correlations. Finally, we use the source to generate secure private quantum random numbers at rates over 4 orders of magnitude beyond previous experiments.
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arXiv: 1306.5772
Note Main text: 5 pages, 2 figures, 1 table. Supplementary Information: 7 pages, 2 figures
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CHRISTENSEN, B. G. et al. Detection-Loophole-Free Test of Quantum Nonlocality, and Applications. In: Physical Review Letters, 2013, vol. 111, p. 130406. https://archive-ouverte.unige.ch/unige:34341

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Deposited on : 2014-02-14

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