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
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL | 2011年 / 44卷 / 29期
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.
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页数：14
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