An Entropic Einstein-Podolsky-Rosen Criterion

Details An Entropic Einstein-Podolsky-Rosen Criterion An Entropic Einstein-Podolsky-Rosen Criterion

2009-07-24

arxiv.org/abs/0907.4263v1

Physics

Quantum Physics

4 pages, 3 figures

Scientific paper

We propose an EPR inequality based on an entropic uncertainty relation for complementary continuous variable observables. This inequality is more sensitive than the previously established EPR inequality based on inferred variances, and opens up the possibility of EPR tests of quantum nonlocality in a wider variety of quantum states. We experimentally test the inequality using spatially entangled photons. For a particular quantum state, our experimental results show a violation of the entropic EPR inequality, while the variance EPR inequality is not violated.

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