Entanglement criteria and full separability of multi-qubit quantum states
classification
🪐 quant-ph
keywords
statesboundclasscriteriondiagonalentangledentanglementfull
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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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