量子电子学报 ›› 2019, Vol. 36 ›› Issue (6): 719-726.

• 量子光学 • 上一篇    下一篇

四量子纠缠态的可选远程态制备

彭家寅   

  1. 内江师范学院数学与信息科学学院,四川 内江 641199
  • 收稿日期:2019-04-28 修回日期:2019-05-22 出版日期:2019-11-28 发布日期:2019-11-19
  • 通讯作者: 彭家寅 E-mail:pengjiayin62226@163.com
  • 作者简介:彭家寅(1962-),四川资中人,博士,教授,主要从事量子通信方面的研究。E-mail:pengjiayin62226@163.com
  • 基金资助:
    Supported by National Natural Science Foundation of China (国家自然科学基金,11071178,11671284), “Comprehensive Reform of Mathematics and Applied Mathematics Specialty” of Ministry of Education (教育部与四川省“数学与应用数学专业综合改革”,ZG0464),Major Frontier Projects of Sichuan Science and Technology Department (四川科技厅重大前沿项目,2017JY0197),Research and Innovation Team Fund of Sichuan Education Department(四川省教育厅科研创新团队基金,15TD0027)

Optional remote state preparation of a four-quantum entangled state

PENG Jiayin   

  1. School of Mathematics and Information Science, Neijiang Normal University, Neijiang 641199, China
  • Received:2019-04-28 Revised:2019-05-22 Published:2019-11-28 Online:2019-11-19

摘要: 提出了已知四量子纠缠态的一个远程态制备协议,其中有两个可能的接收者,发送方可以在两个可能的接收者中选择其中的一个,并在选定的接收者处制备预期的量子态。发送者首先引入两个辅助粒子,执行两个受控非门操作,然后对二粒子系统进行两个投影测量,其测量基是通过已知态的信息来选择的,并行使自己的特有选择权。根据发送方的16种不同测量结果,协议有16个部分。给出了方案的内在效率,以及与现有相应方案相比存在的优势。

关键词: 量子通信, 量子纠缠, 远程态制备, 选择权

Abstract:  A remote state preparation protocol for a known four-quantum entangled state is proposed, in which there are two possible receivers, and the sender can choose one of the two possible receivers to prepare an intended quantum state at the chosen receiver. The sender first introduces two auxiliary quantum particles and performs two controlled non-gate operations. Then two projection measurements on two-particle systems are carried out, where the measurement bases are chosen by using the information of the known states. At last the sender exercises her option which is exclusively her own prerogative. According to 16 different measurement results of sender, the protocol consists of 16 parts. The intrinsic efficiency of the scheme is given, and its comparative advantages are also pointed out by comparing with existing corresponding schemes.

Key words: quantum communication, quantum entanglement, remote state preparation, option

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