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arXiv · 1010.5191

Activation of Non-Local Quantum Resources

Miguel Navascues·Tamas Vertesi
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Abstract

We find two two-qubit states such that any number of copies of one state or the other cannot violate the CHSH Bell inequality. However, their tensor product can produce a CHSH violation of at least 2.023. We also identify a CHSH-local state such that two copies of it are CHSH-violating. The tools employed here can be easily adapted to find instances of non-locality activation in arbitrary Bell scenarios.

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Miguel Navascues, Tamas Vertesi. 2011-02-25. Activation of Non-Local Quantum Resources. https://doi.org/10.1103/physrevlett.106.060403

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