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arXiv · 1805.03955

Enhanced entanglement criterion via symmetric informationally complete measurements

Jiangwei Shang·Ali Asadian·Huangjun Zhu·Otfried Gühne
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Abstract

We show that a special type of measurements, called symmetric informationally complete positive operator-valued measures (SIC POVMs), provide a stronger entanglement detection criterion than the computable cross-norm or realignment criterion based on local orthogonal observables. As an illustration, we demonstrate the enhanced entanglement detection power in simple systems of qubit and qutrit pairs. This observation highlights the significance of SIC POVMs for entanglement detection.

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Jiangwei Shang, Ali Asadian, Huangjun Zhu, Otfried Gühne. 2018-05-10. Enhanced entanglement criterion via symmetric informationally complete measurements. https://doi.org/10.1103/physreva.98.022309

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