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arXiv 0902.3862quant-ph
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具有双纠缠态纯化的最佳量子中继器

Optimal quantum repeaters with doubly entangled state purification

Chuan Wang, Rong-Zhen Jiao, Hai-Qiang Ma, Yong Zhang, Li Yu

摘要:

最近,Briegel等人提出了一种利用嵌套纠缠纯化的长距离量子通信的量子中继器协议(Physical Review Letters \textbf{81},5932)。在本文中,我们提出了一个改进的方案,用于构建一个最佳的量子中继器使用双纠缠光子对,克服了量子通信通过噪声信道的限制。基于非理想量子操作和经典通信,可以建立效率更高的偏振纠缠量子信道。

英文摘要:

Recently, Briegel et al. present a quantum repeaters protocol using nest entanglement purification for long distance quantum communication(Physical Review Letters \textbf{81},5932). In this paper we present a modified scheme for constructing an optimal quantum repeater using doubly entangled photon pairs that overcomes the limitations of quantum communication via noisy channels. Based on the imperfect quantum operations and classical communications, the polarization entangled quantum channels can be built with a better efficiency.

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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