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arXiv quant-ph/0107051quant-ph
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当只有三分之二的纠缠可以被蒸馏时

When only two thirds of the entanglement can be distilled

G. Vidal, J. I. Cirac

摘要:

我们给出了一个双粒子混合态的例子,使得即使在渐近极限下,产生它所需要的纯态纠缠也比从中提取的纯态纠缠要多,从而证明了最近在[G. J.I.维达尔Cirac,Phys. Rev. Lett. 86,(2001)5803-5806],不限于束缚纠缠态。

英文摘要:

We provide an example of distillable bipartite mixed state such that, even in the asymptotic limit, more pure-state entanglement is required to create it than can be distilled from it. Thus, we show that the irreversibility in the processes of formation and distillation of bipartite states, recently proved in [G. Vidal, J.I. Cirac, Phys. Rev. Lett. 86, (2001) 5803-5806], is not limited to bound-entangled states.

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