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arXiv quant-ph/0410124quant-ph
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一般纯多体量子态的纠缠张量

Entanglement tensor for a general pure multipartite quantum state

Hoshang Heydari, Gunnar Björk

摘要:

我们提出了一个纠缠张量来计算一般纯多体量子态的纠缠。我们比较了由此产生的张量与二分态的纠缠度,并将张量测度应用到一些有趣的三量子比特和四量子比特纠缠态的例子中。它表明,在定义的纠缠度的多方状态,需要作出假设的各方合作的意愿。我们还讨论了多量子比特$\ket{W_{M}}$态的纠缠度。

英文摘要:

We propose an entanglement tensor to compute the entanglement of a general pure multipartite quantum state. We compare the ensuing tensor with the concurrence for bipartite state and apply the tensor measure to some interesting examples of entangled three-qubit and four-qubit states. It is shown that in defining the degree of entanglement of a multi-partite state, one needs to make assumptions about the willingness of the parties to cooperate. We also discuss the degree of entanglement of the multi-qubit $\ket{W_{M}}$-states.

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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