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arXiv quant-ph/9801069quant-ph
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混合态纠缠和蒸馏:自然界中存在“束缚”纠缠吗?

Mixed-state entanglement and distillation: is there a ``bound'' entanglement in nature?

Michal Horodecki, Pawel Horodecki, Ryszard Horodecki

摘要:

证明了如果一个混合态能被蒸馏成单态,它必须违反部分转置判据[A. Peres,Phys. Rev. Lett. 76,1413(1996)]。这意味着有两种性质不同的纠缠:“自由”纠缠是可折叠的,“束缚”纠缠不能被带到用于量子通信目的的单线态形式。讨论了结果可能的物理意义。

英文摘要:

It is shown that if a mixed state can be distilled to the singlet form, it must violate partial transposition criterion [A. Peres, Phys. Rev. Lett. 76, 1413 (1996)]. It implies that there are two qualitatively different types of entanglement: ``free'' entanglement which is distillable, and ``bound'' entanglement which cannot be brought to the singlet form useful for quantum communication purposes. Possible physical meaning of the result is discussed.

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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