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



B. G. Christensen, Kevin McCusker, Joseph Altepeter, Brice R. Calkins, Thomas Gerrits, Adriana Lita, Aaron J. Miller, Krister Shalm, Sae Woo Nam, P. G. Kwiat


We present a source of entangled photons that violates a Bell inequality free of the "fair-sampling" assumption, by over 50 standard deviations, and with 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 quantum random numbers at rates 5 orders of magnitude beyond previous experiments.
Science Magazine
13 - 27


detection-loophole free Bell test, transition edge sensors


Christensen, B. , McCusker, K. , Altepeter, J. , Calkins, B. , Gerrits, T. , Lita, A. , Miller, A. , Shalm, K. , Nam, S. and Kwiat, P. (2013), Detection-Loophole-Free Test of Quantum Nonlocality, and Applications, Science Magazine, [online], (Accessed June 24, 2024)


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Created September 25, 2013, Updated October 12, 2021