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arXiv quant-ph/0512224quant-ph
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量子关联是对称的吗?

Are quantum correlations symmetric ?

Karol Horodecki, Michal Horodecki, Pawel Horodecki

摘要:

据我们所知,所有已知的二体纠缠度量在交换子系统下都是对称的。我们问,如果纠缠措施,是不对称的可以存在。一个相关的问题是是否存在不能通过LOCC交换的状态。我们表明,在一般情况下,不能交换状态LOCC。这使得我们可以构造纠缠的非对称性度量,以及一个表征量子态纠缠量非对称性的参数。我们提出了纠缠不对称性的渐近度量,并证明了纠缠不对称性不为零的态必然包含束缚纠缠。

英文摘要:

To our knowledge, all known bipartite entanglement measures are symmetric under exchange of subsystems. We ask if an entanglement measure that is not symmetric can exist. A related question is if there is a state that cannot be swapped by means of LOCC. We show, that in general one cannot swap states by LOCC. This allows to construct nonsymmetric measure of entanglement, and a parameter that reports asymmetry of entanglement contents of quantum state. We propose asymptotic measure of asymmetry of entanglement, and show that states for which it is nonzero, contain necessarily bound entanglement.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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