Entanglement criteria and full separability of multi-qubit quantum states

Details Entanglement criteria and full separability of multi-qubit quantum states Entanglement criteria and full separability of multi-qubit quantum states

2010-09-20

arxiv.org/abs/1009.3782v2

Phys. Lett. A 375, 406 (2011)

Physics

Quantum Physics

11 pages, no figures, v2: small changes

Scientific paper

10.1016/j.physleta.2010.11.032

We introduce an entanglement criterion to exclude full separability of
quantum states. We present numerical evidence that the criterion is necessary
and sufficient for the class of GHZ diagonal three-qubit states and estimate
the volume of bound entangled states within this class. Finally, we extend our
approach to bound entangled states which are not GHZ diagonal.

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