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

被引:61
|
作者
Kim, Jeong San [1 ]
Sanders, Barry C. [1 ]
机构
[1] Univ Calgary, Inst Quantum Informat Sci, Calgary, AB T2N 1N4, Canada
关键词
D O I
10.1088/1751-8113/44/29/295303
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
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 >= 1, 0 <= s <= 1 and qs <= 3. Using unified-(q, s) entanglement, we establish a broad class of the monogamy inequalities of multi-qubit entanglement for q >= 2, 0 <= s <= 1 and qs <= 3.
引用
收藏
页数:14
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