Detection Loophole in Asymmetric Bell Experiments

Nicolas Brunner; Nicolas Gisin; Valerio Scarani; Christoph Simon

doi:10.1103/physrevlett.98.220403

Abstract

1 min read

The problem of closing the detection loophole with asymmetric systems, such as entangled atom-photon pairs, is addressed. We show that, for the Bell inequality ${I}_{3322}$, a minimal detection efficiency of 43% can be tolerated for one of the particles, if the other one is always detected. We also study the influence of noise and discuss the prospects of experimental implementation.

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