Two-step hyperentanglement purification with the quantum-state-joining method
Two-step hyperentanglement purification with the quantum-state-joining method
复制标题
使用量子态连接方法进行两步超纠缠纯化
DOI:
10.1103/physreva.90.052309
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发表时间:
2014-08
影响因子:
2.9
通讯作者:
Deng, Fu-Guo
中科院分区:
文献类型:
--
作者:
Ren, Bao-Cang;Du, Fang-Fang;Deng, Fu-Guo
Hyperentanglement is a promising resource in quantum information processing, especially for increasing the channel capacity of long-distance quantum communication. Hyperentanglement purification is an important method to obtain high-fidelity nonlocal hyperentangled states from mixed hyperentangled states in a long-distance quantum communication process with noisy channels. Here, we present a two-step hyperentanglement purification protocol for nonlocal mixed hyperentangled states with polarization bit-flip errors and spatial-mode phase-flip errors, resorting to polarization-spatial phase-check quantum nondemolition detectors and the quantum-state-joining method (QSJM). With QSJM, the protocol can preserve the states that are discarded in the previous hyperentanglement purification protocols. It has the advantage of a high efficiency, and it is useful for improving the entanglement of photon systems with several degrees of freedom in long-distance high-capacity quantum communication.
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影响因子:
2.9
作者:
Long, Gui Lu;Sheng, Yu-Bo;Deng, Fu-Guo
通讯作者:
Deng, Fu-Guo
DOI:
10.1117/12.483026
发表时间:
2002-09
期刊:
--
影响因子:
--
作者:
G. Guo;Guangcan Guo
通讯作者:
G. Guo;Guangcan Guo
影响因子:
2.9
作者:
Deng, Fu-Guo;Zhou, Hong-Yu;Sheng, Yu-Bo
通讯作者:
Sheng, Yu-Bo
影响因子:
8.6
作者:
Bennett, CH;Brassard, G;Wootters, WK
通讯作者:
Wootters, WK
影响因子:
3.7
作者:
Hu, C. Y.;Rarity, J. G.
通讯作者:
Rarity, J. G.