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arXiv · 2206.07905

Estimating Parameterized Entanglement Measure

Zhi-Wei Wei·Ming-Xing Luo·Shao-Ming Fei
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Abstract

The parameterized entanglement monotone, the $q$-concurrence, is also a reasonable parameterized entanglement measure. By exploring the properties of the $q$-concurrence with respect to the positive partial transposition and realignment of density matrices, we present tight lower bounds of the $q$-concurrence for arbitrary $q\geqslant 2$. Detailed examples are given to show that the bounds are better than the previous ones.

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Zhi-Wei Wei, Ming-Xing Luo, Shao-Ming Fei. 2022-06-16. Estimating Parameterized Entanglement Measure. https://doi.org/10.1007/s11128-022-03551-4

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