中国物理B ›› 2021, Vol. 30 ›› Issue (11): 110302-110302.doi: 10.1088/1674-1056/abf34f

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Dense coding capacity in correlated noisy channels with weak measurement

Jin-Kai Li(李进开), Kai Xu(徐凯), and Guo-Feng Zhang(张国锋)   

  1. School of Physics, Beihang University, Beijing 100191, China
  • 收稿日期:2021-02-22 修回日期:2021-03-19 接受日期:2021-03-30 出版日期:2021-10-13 发布日期:2021-10-22
  • 通讯作者: Guo-Feng Zhang E-mail:gf1978zhang@buaa.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 12074027).

Dense coding capacity in correlated noisy channels with weak measurement

Jin-Kai Li(李进开), Kai Xu(徐凯), and Guo-Feng Zhang(张国锋)   

  1. School of Physics, Beihang University, Beijing 100191, China
  • Received:2021-02-22 Revised:2021-03-19 Accepted:2021-03-30 Online:2021-10-13 Published:2021-10-22
  • Contact: Guo-Feng Zhang E-mail:gf1978zhang@buaa.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 12074027).

摘要: Capacity of dense coding via correlated noisy channel is greater than that via uncorrelated noisy channel. It is shown that the weak measurement and reversal measurement need to further improve their quantum dense coding capacity in correlated amplitude damping channel, but this improvement is very small in correlated phase damping channel and correlated depolarizing channel.

关键词: correlated noise channel, quantum dense coding, weak measurement, reversal measurement

Abstract: Capacity of dense coding via correlated noisy channel is greater than that via uncorrelated noisy channel. It is shown that the weak measurement and reversal measurement need to further improve their quantum dense coding capacity in correlated amplitude damping channel, but this improvement is very small in correlated phase damping channel and correlated depolarizing channel.

Key words: correlated noise channel, quantum dense coding, weak measurement, reversal measurement

中图分类号:  (Entanglement and quantum nonlocality)

  • 03.65.Ud
03.67.Hk (Quantum communication) 05.40.Ca (Noise) 89.70.Kn (Channel capacity and error-correcting codes)