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arXiv · 1104.1675

Unified entropy, entanglement measures and monogamy of multi-party entanglement

Jeong San Kim·Barry C. Sanders
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Abstract

We show that restricted shareability of multi-qubit entanglement can be fully characterized by unified-$(q,s)$ entropy. We provide a two-parameter class of bipartite entanglement measures, namely unified-$(q,s)$ entanglement with its analytic formula in two-qubit systems for $q\geq 1$, $0\leq s \leq1$ and $qs\leq3$. Using unified-$(q,s)$ entanglement, we establish a broad class of the monogamy inequalities of multi-qubit entanglement for $q\geq2$, $0\leq s \leq1$ and $qs\leq3$.

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Jeong San Kim, Barry C. Sanders. 2011-04-09. Unified entropy, entanglement measures and monogamy of multi-party entanglement. https://doi.org/10.1088/1751-8113/44/29/295303

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