Detection and measure of genuine tripartite entanglement with partial transposition and realignment of density matrices.
Detection and measure of genuine tripartite entanglement with partial transposition and realignment of density matrices.
复制标题
密度矩阵部分转置和重新排列的真正三方纠缠的检测和测量
DOI:
10.1038/s41598-017-17585-7
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发表时间:
2017-12-08
影响因子:
4.6
通讯作者:
Fei SM
中科院分区:
文献类型:
--
作者:
Li M;Wang J;Shen S;Chen Z;Fei SM
It is challenging task to detect and measure genuine multipartite entanglement. We investigate the problem by considering the average based positive partial transposition(PPT) criterion and the realignment criterion. Sufficient conditions for detecting genuine tripartite entanglement are presented. We also derive lower bounds for the genuine tripartite entanglement concurrence with respect to the conditions. While the PPT criterion and the realignment criterion are powerful for detecting bipartite entanglement and for providing lower bounds of bipartite concurrences, our results give an effective operational way to detect and measure the genuine tripartite entanglement.
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