Dynamics of Non Classically Reproducible Entanglement

Details Dynamics of Non Classically Reproducible Entanglement Dynamics of Non Classically Reproducible Entanglement

2008-06-19

arxiv.org/abs/0806.3182v2

Physical Review A 78, 062309 (2008)

Physics

Quantum Physics

4 pages, 3 figures

Scientific paper

10.1103/PhysRevA.78.062309

We investigate when the quantum correlations of a bipartite system, under the influence of environments with memory, are not reproducible with certainty by a classical local hidden variable model. To this purpose, we compare the dynamics of a Bell inequality with that of entanglement, as measured by concurrence. We find time regions when Bell inequality is not violated even in correspondence to high values of concurrence (up to $\approx 0.8$). We also suggest that these results may be observed by adopting a modification of a recent experimental optical setup. These findings indicate that even highly entangled systems cannot be exploited with certainty in contexts where the non classical reproducibility of quantum correlations is required.

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