中国物理B ›› 2017, Vol. 26 ›› Issue (2): 20304-020304.doi: 10.1088/1674-1056/26/2/020304

• GENERAL • 上一篇    下一篇

Probabilistic direct counterfactual quantum communication

Sheng Zhang(张盛)   

  1. Department of Electronic Technology, China Maritime Police Academy, Ningbo 315801, China
  • 收稿日期:2016-05-31 修回日期:2016-11-03 出版日期:2017-02-05 发布日期:2017-02-05
  • 通讯作者: Sheng Zhang E-mail:huoxingren112@163.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 61300203).

Probabilistic direct counterfactual quantum communication

Sheng Zhang(张盛)   

  1. Department of Electronic Technology, China Maritime Police Academy, Ningbo 315801, China
  • Received:2016-05-31 Revised:2016-11-03 Online:2017-02-05 Published:2017-02-05
  • Contact: Sheng Zhang E-mail:huoxingren112@163.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 61300203).

摘要: It is striking that the quantum Zeno effect can be used to launch a direct counterfactual communication between two spatially separated parties, Alice and Bob. So far, existing protocols of this type only provide a deterministic counterfactual communication service. However, this counterfactuality should be payed at a price. Firstly, the transmission time is much longer than a classical transmission costs. Secondly, the chained-cycle structure makes them more sensitive to channel noises. Here, we extend the idea of counterfactual communication, and present a probabilistic-counterfactual quantum communication protocol, which is proved to have advantages over the deterministic ones. Moreover, the presented protocol could evolve to a deterministic one solely by adjusting the parameters of the beam splitters.

关键词: quantum communication, quantum cryptography, optical implementation of quantum information processing

Abstract: It is striking that the quantum Zeno effect can be used to launch a direct counterfactual communication between two spatially separated parties, Alice and Bob. So far, existing protocols of this type only provide a deterministic counterfactual communication service. However, this counterfactuality should be payed at a price. Firstly, the transmission time is much longer than a classical transmission costs. Secondly, the chained-cycle structure makes them more sensitive to channel noises. Here, we extend the idea of counterfactual communication, and present a probabilistic-counterfactual quantum communication protocol, which is proved to have advantages over the deterministic ones. Moreover, the presented protocol could evolve to a deterministic one solely by adjusting the parameters of the beam splitters.

Key words: quantum communication, quantum cryptography, optical implementation of quantum information processing

中图分类号:  (Quantum cryptography and communication security)

  • 03.67.Dd
03.67.Hk (Quantum communication) 42.50.Ex (Optical implementations of quantum information processing and transfer)