Observation of tunable Popescu-Rohrlich correlations through post-selection of a gaussian state

Details Observation of tunable Popescu-Rohrlich correlations through post-selection of a gaussian state Observation of tunable Popescu-Rohrlich correlations through post-selection of a gaussian state

2009-09-16

arxiv.org/abs/0909.2907v1

Phys. Rev A 80, 030101(R) (2009)

Physics

Quantum Physics

4 pages, 3 figures

Scientific paper

10.1103/PhysRevA.80.030101

We show that non-local Popescu-Rohrlich correlations can be observed in the post-selected results of binned position measurements on a two-party gaussian state. Our experiment is based on the spatial correlations of entangled photons and lens systems. We obtain a maximum violation of the CHSH inequality of 3.42, which corresponds to the implementation of a non-local AND gate with success probability of 0.93. These results do not conflict with quantum mechanics due to the post-selection required, and open up the possibility of experimental investigation of fundamental aspects of Popescu-Rohrlich non-locality with a reliable and simple experimental setup.

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