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arXiv · 0806.3182

Dynamics of Non Classically Reproducible Entanglement

Bruno Bellomo·Rosario Lo Franco·Giuseppe Compagno
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Abstract

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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Bruno Bellomo, Rosario Lo Franco, Giuseppe Compagno. 2008-06-19. Dynamics of Non Classically Reproducible Entanglement. https://doi.org/10.1103/physreva.78.062309

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