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arXiv · 2110.11565

Tighter constraints of multiqubit entanglement in terms of unified entropy

Ya-Ya Ren·Zhi-Xi Wang·Shao-Ming Fei
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Abstract

We present classes of monogamy inequalities related to the $\alpha$-th ($\alpha \geq 1$) power of the entanglement measure based on the unified-($q,s$) entropy, and polygamy inequalities related to the $\beta$-th ($0 \leq \beta \leq 1$) power of the unified-($q,s$) entanglement of assistance by using Hamming weight. We show that these monogamy and polygamy inequalities are tighter than the existing ones. Detailed examples are given for illustrating the advantages.

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Ya-Ya Ren, Zhi-Xi Wang, Shao-Ming Fei. 2021-10-22. Tighter constraints of multiqubit entanglement in terms of unified entropy. https://doi.org/10.1088/1612-202x%2Fac2cd0

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