Details

Autor(en) / Beteiligte

• Christensen, B G
• McCusker, K T
• Altepeter, J B
• Calkins, B
• Gerrits, T
• Lita, A E
• Miller, A
• Shalm, L K
• Zhang, Y
• Nam, S W
• Brunner, N
• Lim, C C W
• Gisin, N
• Kwiat, P G

Titel

Detection-loophole-free test of quantum nonlocality, and applications

Ist Teil von

• Physical review letters, 2013-09, Vol.111 (13), p.130406-130406, Article 130406

Ort / Verlag

United States

Erscheinungsjahr

2013

Quelle

PROLA

Beschreibungen/Notizen

• 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 reported 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 "device-independent" private quantum random numbers at rates over 4 orders of magnitude beyond previous experiments.