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arXiv 1306.2536quant-ph
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绝对最大纠缠态的存在性及其应用

Absolutely Maximally Entangled States: Existence and Applications

Wolfram Helwig, Wei Cui

摘要:

研究了绝对最大纠缠态(AME),它是相对于任何可能的二分态最大纠缠的多体量子态。这些强纠缠特性使它们成为各种量子信息协议的强大资源。在本文中,我们证明了存在的AME状态的任何数量的缔约方,鉴于所涉及的系统的尺寸是适当的选择。我们证明了偶数方之间共享的AME状态和纯状态门限量子秘密共享(QSS)计划的等价性,并证明了更广泛的一类斜坡QSS计划的必要和充分的纠缠特性。我们进一步展示了如何AME状态可以作为一个有价值的资源开放的目的地隐形传态协议和什么程度的纠缠交换推广到AME状态。

英文摘要:

We investigate absolutely maximally entangled (AME) states, which are multipartite quantum states that are maximally entangled with respect to any possible bipartition. These strong entanglement properties make them a powerful resource for a variety of quantum information protocols. In this paper, we show the existence of AME states for any number of parties, given that the dimension of the involved systems is chosen appropriately. We prove the equivalence of AME states shared between an even number of parties and pure state threshold quantum secret sharing (QSS) schemes, and prove necessary and sufficient entanglement properties for a wider class of ramp QSS schemes. We further show how AME states can be used as a valuable resource for open-destination teleportation protocols and to what extend entanglement swapping generalizes to AME 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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