Experimentally friendly geometrical criteria for entanglement

Abstract

We present an intuitive geometrical entanglement criterion. It allows formulation of simple and experimentally friendly sufficient conditions for entanglement. The conditions are illustrated with several examples. Moreover, a generalization of our approach is a necessary and sufficient separability condition. It can be associated with a family of entanglement identifiers, which is strictly richer than the family of entanglement witnesses.

4 pages, journal version

References in corpus (1)

• Separability of entangled qutrits in noisy channels

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