Concurrence in arbitrary dimensions
Concurrence in arbitrary dimensions
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DOI：
10.1080/09500340210121589
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发表时间：
2001-07
影响因子：
1.3
通讯作者：
P. Badziag;P. Deuar;M. Horodecki;P. Horodecki;R. Horodecki
中科院分区：
文献类型：
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作者：
P. Badziag;P. Deuar;M. Horodecki;P. Horodecki;R. Horodecki
我们认为，对多维二部系统中量子相关的完整描述可能需要一个量，即使对于纯态，也不能简化为单个数。随后，我们引入了并发的多维推广，并找到证据表明它们可以为混合二部态的量子相关分析提供有用的工具。我们还引入了双并发，这导致了可分性的充分必要条件。
We argue that a complete characterization of quantum correlations in bipartite systems of many dimensions may require a quantity which, even for pure states, does not reduce to a single number. Subsequently, we introduce multidimensional generalizations of concurrence and find evidence that they may provide useful tools for the analysis of quantum correlations in mixed bipartite states. We also introduce biconcurrence that leads to a necessary and sufficient condition for separability.