《计算机应用研究》|Application Research of Computers

任意二粒子纠缠态的受控量子通信

Controlled quantum communication of arbitrary two-particle entangled states

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作者 彭家寅
机构 内江师范学院 数学与信息科学学院,四川 内江 641100
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文章编号 1001-3695(2020)12-042-3731-05
DOI 10.19734/j.issn.1001-3695.2019.08.0561
摘要 为了解决任意二量子通信问题,首先给出了五粒子和七粒子纠缠态的构造方法,并提供了它们的量子线路图。其次,以该五粒子纠缠态为量子信道,提出一个任意二粒子未知量子态的受控隐形传态协议。该协议在监察者Charlie的控制下,Alice进行四粒子投影测量和经典通信,Bob采用简单酉变换就能以100%的概率成功重构一个任意二粒子纠缠态。最后,利用七粒子纠缠态为量子信道,提出了任意二粒子纠缠态的联合受控远程制备方案。在此方案中,发送者Alice用自己掌握被制备态的部分信息构造测量基,发送者Bob采用前馈测量策略,接收者Diana在监控者Charlie的帮助下,通过简单幺正变换就能确定性地恢复原始态。
关键词 量子通信; 受控隐形传态; 联合受控远程态制备; 五粒子纠缠态; 七粒子纠缠态
基金项目 国家教育部数学与应用数学专业综合改革基金资助项目(ZG0464)
四川省科技厅重点科技项目(2006J13-035)
四川省数学与成用数学专业综合改革基金资助项目(01249)
国家自然科学基金资助项目(11071178)
本文URL http://www.arocmag.com/article/01-2020-12-042.html
英文标题 Controlled quantum communication of arbitrary two-particle entangled states
作者英文名 Peng Jiayin
机构英文名 School of Mathematics & Information Science,Neijiang Normal University,Neijiang Sichuan 641100,China
英文摘要 In order to solve the problem for arbitrary two-qubit quantum communication, this paper firstly gave the construction methods of five- and seven-particle entangled states, and provided their quantum circuit diagrams. Next, taking this entangled five-particle state as quantum channel, this paper proposed a controlled teleportation protocol for an arbitrary two-particle unknown quantum state. Under the control of the supervisor Charlie, Alice carried out four-particle projective measurement and classical communication, and Bob could successfully reconstruct an arbitrary two-particle entangled state with 100% probability by using simple unitary transformation. Finally, the paper put forward a joint controlled remote preparation scheme for an arbitrary two-particle entangled state by using the seven-particle entangled state as quantum channel. In this scheme, the sender Alice constructed a measurement basis with some information of the prepared state, which were had by her. The sender Bob used feed-forward measurement strategy, and the receiver Diana, with the help of the supervisor Charlie, could restore the original state deterministically by simple unitary transformation.
英文关键词 quantum communication; controlled teleportation; joint controlled remote preparation; five-particle entangled state; seven-particle entangled state
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收稿日期 2019/8/1
修回日期 2019/9/20
页码 3731-3735
中图分类号 TP301
文献标志码 A