文章基本信息

标题：Detection and measure of genuine tripartite entanglement with partial transposition and realignment of density matrices
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作者：Ming Li ; Jing Wang ; Shuqian Shen 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2017
卷号：7
期号：1
页码：17274
DOI：10.1038/s41598-017-17585-7
语种：English
出版社：Springer Nature
摘要：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.