Entanglement purification of two-photon systems in multiple degrees of freedom
Entanglement purification of two-photon systems in multiple degrees of freedom
复制标题
多自由度双光子系统的纠缠净化
DOI:
10.1007/s11128-020-02697-3
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发表时间:
2020-06
影响因子:
2.5
通讯作者:
高亭
中科院分区:
文献类型:
--
作者:
王美玉;闫凤利;高亭
Hyperentanglement purification is a very important element for high-capacity long-distance quantum communication. We present an efficient hyperentanglement purification protocol (hyper-EPP) for nonlocal two-photon systems in three degrees of freedom (DoFs), including the polarization, the time-bin, and the spatial-mode DoFs. Our hyper-EPP is constructed with two steps resorting to polarization–time–spatial parity-check operation using the quantum nondemolition detector and SWAP gates, respectively. With this hyper-EPP, the bit-flip errors in the three DoFs can be corrected with high efficiency. The implementation of our hyper-EPP is contributed by a cross-Kerr nonlinearity between the signal photons and a coherent state via Kerr media, which could be achieved with current techniques. Moreover, some currently available optical elements are applied in the purification process, which offer facilities for the practical implementation. It is useful for long-distance high-capacity quantum communication with hyperentanglement in multiple DoFs.
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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
影响因子:
2.9
作者:
Hao Zhang;Qian Liu;Xu-Sheng Xu;Jun Xiong;Ahmed Alsaedi;Tasawar Hayat;Fu-Guo Deng
通讯作者:
Fu-Guo Deng
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:
Ren, Bao-Cang;Du, Fang-Fang;Deng, Fu-Guo
通讯作者:
Deng, Fu-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