test of Bell inequalities performed using a non-maximally entangled stateM
GENOVESE*, G BRIDA, C NOVERO and E PREDAZZI+
Istituto Elettrotecnico Nazionale Galileo
Ferraris, Str. delle Cacce 91, I-10135 Torino, Italy
+ Dip. Fisica Teorica Univ. Torino e INFN,
via P.Giuria 1, I-10125 Torino, Italy
Abstract.We describe the realisation of a new test of Bell inequalities using a new scheme obtained by the superposition of type I parametric down conversion produced in two different non-linear crystals pumped by the same laser, but with different polarisations. This experiment is the first test of Bell inequalities using a non-maximally entangled state and thus represents an important step in the direction of eliminating the detection loophole.
Keywords: Bell inequalities; non-locality; EPR.
Pacs No. 03.65.Bz
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