most citedQuantifying entanglement of a two-qubit system via measurable and invariant moments of its partially transposed density matrix

31 citations · 31 across the 1 of their papers we have counts for

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quant-ph2014★ 31 cited

Quantifying entanglement of a two-qubit system via measurable and invariant moments of its partially transposed density matrix

Karol Bartkiewicz, Jiří Beran, Karel Lemr +2

We describe a direct method to determine the negativity of an arbitrary two-qubit state in experiments. The method is derived by analyzing the relation between the purity, negativi…