Construction of three-qubit genuine entanglement with bipartite positive partial transposes

被引：7
|
作者：
Ha, Kil-Chan [1 ]
Kye, Seung-Hyeok [2 ,3 ]
机构：
[1] Sejong Univ, Fac Math & Stat, Seoul 143747, South Korea
[2] Seoul Natl Univ, Dept Math, Seoul 151742, South Korea
[3] Seoul Natl Univ, Inst Math, Seoul 151742, South Korea
来源：
PHYSICAL REVIEW A | 2016年 / 93卷 / 03期
基金：
新加坡国家研究基金会;
关键词：
SEPARABILITY; MATRICES; MAPS;
D O I：
10.1103/PhysRevA.93.032315
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We construct triqubit genuinely entangled states which have positive partial transposes (PPTs) with respect to the bipartition of systems. These examples disprove a conjecture [Novo, Moroder, and Guhne, Phys. Rev A 88, 012305 (2013)] which claims that PPT mixtures are necessary and sufficient for the biseparability of three qubits.
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收藏
页数：3
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