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- Cabello, Adan, et al.
(författare)
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Loophole-Free Bell Test Based on Local Precertification of Photon's Presence
- 2012
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Ingår i: Physical Review X. - 2160-3308. ; 2:2, s. 021010-
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Tidskriftsartikel (refereegranskat)abstract
- A loophole-free violation of Bell inequalities is of fundamental importance for demonstrating quantum nonlocality and long-distance device-independent secure communication. However, transmission losses represent a fundamental limitation for photonic loophole-free Bell tests. A local precertification of the presence of the photons immediately before the local measurements may solve this problem. We show that local precertification is feasible by integrating three current technologies: (i) enhanced single-photon down-conversion to locally create a flag photon, (ii) nanowire-based superconducting single-photon detectors for a fast flag detection, and (iii) superconducting transition-edge sensors to close the detection loophole. We carry out a precise space-time analysis of the proposed scheme, showing its viability and feasibility.
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