Multipartite entanglement measure
Multipartite entanglement measure
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DOI：
10.1103/physreva.71.042331
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发表时间：
2005-01
影响因子：
2.9
通讯作者：
Chang-shui Yu;He-Shan Song
中科院分区：
文献类型：
--
作者：
Chang-shui Yu;He-Shan Song
本文利用不同的方法将剩余纠缠推广到任意维多体态的情形。通过引入一种特殊的纠缠度量，混合态的剩余纠缠呈现出一种比Coffman等人[Phys.Rev.A61，052306（2000）]所用的更优雅的形式。本文的结果与Wong和Christensen [Phys.Rev.A63，044301（2000）]的结果不同。几个例子表明，我们的结果是一个很好的测量的多体纠缠。此外，原始剩余纠缠是我们结果的一个特例。
In this paper, we generalize the residual entanglement to the case of multipartite states in arbitrary dimensions by making use of a different method. Through the introduction of a special entanglement measure, the residual entanglement of mixed states takes on a form that is more elegant than that used by Coffman et al. [Phys. Rev. A 61, 052306 (2000)]. The result obtained in this paper is different from the previous one given by Wong and Christensen [Phys. Rev. A 63, 044301 (2000)]. Several examples demonstrate that our present result is a good measurement of the multipartite entanglement. Furthermore, the original residual entanglement is a special case of our result.