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arXiv · 1204.2982

The local content of all pure two-qubit states

Samuel Portmann·Cyril Branciard·Nicolas Gisin
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Abstract

The (non-)local content in the sense of Elitzur, Popescu, and Rohrlich (EPR2) [Phys. Lett. A 162, 25 (1992)] is a natural measure for the (non-)locality of quantum states. Its computation is in general difficult, even in low dimensions, and is one of the few open questions about pure two-qubit states. We present a complete solution to this long-lasting problem.

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Samuel Portmann, Cyril Branciard, Nicolas Gisin. 2012-04-13. The local content of all pure two-qubit states. https://doi.org/10.1103/physreva.86.012104

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