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

Contributors

Christensen, B. G.; McCusker, K. T.; Altepeter, J.; Calkins, B.; Gerrits, T.; Lita, A.; Miller, A.; Shalm, L. K.; Zhang, Y.; Nam, S. W.; Brunner, Nicolas; Lim, Ci Wen; Gisin, Nicolas; Kwiat, P. G.

Published in

Physical review letters, vol. 111, 130406

Publication date

2013

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.

Note

Main text: 5 pages, 2 figures, 1 table. Supplementary Information: 7 pages, 2 figures

UNIGE affiliation entities

UNIGE research groups

Citation (ISO format)

CHRISTENSEN, B. G. et al. Detection-Loophole-Free Test of Quantum Nonlocality, and Applications. In: Physical review letters, 2013, vol. 111, p. 130406. doi: 10.1103/PhysRevLett.111.130406

Main files (1)

Article (Published version)

Identifiers

Additional URL for this publication

http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.111.130406?utm_source=wrapper&utm_medium=web&utm_campaign=beta

Journal ISSN

0031-9007
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3117downloads

Technical informations

Creation

13/02/2014 14:50:00

First validation

13/02/2014 14:50:00

Update

05/12/2024 07:59:14

Status update

05/12/2024 07:59:14

Last indexation

05/12/2024 07:59:14
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