Click here for full text:
Violations of local realism by two entangled quNits
Collins, Daniel; Popescu, Sandu
Keyword(s): Bell inequalities; local realism; quantum information; quantum foundations; hidden non-locality; quantum non- locality; non-locality
Abstract: Results obtained in two recent papers,  and  seem to indicate that the nonlocal character of the correlations between the outcomes of measurements performed on entangled systems separated in space is not robust in the presence of noise. This is surprising, since entanglement itself is robust. Here we revisit this problem and argue that the class of gedanken-experiments considered in  and  is too restrictive. By considering a more general class, involving sequences of measurements, we prove that the nonlocal correlations are in fact robust.
Back to Index