Minimum detection efficiency for a loophole-free violation of the Braunstein-Caves chained Bell inequalities
arXiv:0904.1033 · doi:10.1103/PhysRevA.79.062109
Abstract
The chained Bell inequalities of Braunstein and Caves involving N settings per observer have some interesting applications. Here we obtain the minimum detection efficiency required for a loophole-free violation of the Braunstein-Caves inequalities for any N > 2. We discuss both the case in which both particles are detected with the same efficiency and the case in which the particles are detected with different efficiencies.
REVTeX4, 8 pages