Detection loophole in asymmetric bell experiments.
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 I3322, 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.
Group of Applied Physics, University of Geneva, CH-1211 Geneva 4, Switzerland. nicolas.brunner@physics.unige.ch
Nicolas
N
Brunner
Nicolas
N
Gisin
Valerio
V
Scarani
Christoph
C
Simon