基于七粒子纠缠态实现受控双向非对称隐形传态

量子电子学报 ›› 2020, Vol. 37 ›› Issue (1): 34-42.

基于七粒子纠缠态实现受控双向非对称隐形传态

邵忠良,龙银香

广东水利电力职业技术学院自动化工程系，广东广州 510635

收稿日期:2019-02-17 修回日期:2019-06-03 出版日期:2020-01-28 发布日期:2020-01-28
通讯作者: 龙银香 E-mail:longyxlongyx@163.com
作者简介:邵忠良（1979-），上海普陀人，硕士，副教授，主要从事量子通信方面的研究。
基金资助:
Supported by Natural Science Foundation of Guangdong Province(广东省自然科学基金，2016a030313736)

Bidirectional and Asymmetric Quantum Controlled Teleportation by a Genuine 7-qubit Entangled State

SHAO Zhongliang, LONG Yinxiang *

Department of Automation Engineering, Guangdong Polytechnic of Water Resources and Electric Engineering, Guangzhou 510635, China

Received:2019-02-17 Revised:2019-06-03 Published:2020-01-28 Online:2020-01-28

摘要/Abstract

摘要： 基于一个七粒子纠缠态，提出了两个新的双向非对称受控隐形传态方案。第一个方案实现一方传输一个单qubit态而另一方同时传输一个2-qubit态；第二个方案实现双方分别同时传输一个2-qubit态，其中：一个是任意形式的2-qubit态，而另一个是Schmidt形式的2-qubit态。在第一个方案中，参与者1和参与者2分别对他手中的粒子使用Bell基进行联合测量，并把测量结果发送给对方；而监督者使用X算子基对他的qubit进行单qubit测量，并把测量结果发送给两个参与者。在第二个方案中，参与者1对他手中的粒子使用Bell基进行联合测量，参与者2对他手中的粒子使用GHZ基进行联合测量，他们把测量结果相互发送给对方；而监督者使用X算子基对他的qubit进行单qubit测量，并把测量结果发送给两个参与者。与其它方案相比，我们的方案具备以下两个优点：一是我们的两个方案可以分别总共传输三个和四个2-qubit态，故通信效率较高，两个方案的通信效率分别为3/7和4/7；二是方案中使用的七粒子纠缠态制备线路简单，故方案较易于实现。

关键词: 量子光学, 双向受控量子隐形传态, 非对称量子隐形传态, 真七粒子纠缠态

Abstract: In this paper, a genuine entangled 7-qubit state is presented as channel of quantum teleportation, and two schemes of bidirectional controlled quantum teleportation are developed. One scheme is that with the control of Charlie Alice transmits an unknown qubit to Bob and Bob transmits an unknown 2-qubit to Alice in the same time. Another scheme is that with the control of Charlie Alice transmits an unknown 2-qubit with the form of Schmidt decomposition to Bob and Bob transmits an arbitrary unknown 2-qubit to Alice simultaneously. In our schemes, the agents measure their particles with appropriate base and transmit the results to each other through classical channel. Then, the supervisor measure his particle with X base and transmit the result to the agents by classical communication. Finally, the agents can restore the quantum state teleported by the sender through applying unitary operators on his particles. Compared with the existed schemes, our scheme can transmit more qubits in total by an entangled state. That is to say, the intrinsic efficiency of our scheme is maybe the best. Moreover, the genuine entangled 7-qubit state used in our scheme can be produced through some simple quantum unitary gates.

Key words: quantum optics, bidirectional controlled quantum teleportation；asymmetric quantum teleportation； genuine seven-qubit entangled state

中图分类号:

0431.2

邵忠良龙银香. 基于七粒子纠缠态实现受控双向非对称隐形传态[J]. 量子电子学报, 2020, 37(1): 34-42.

SHAO Zhongliang, LONG Yinxiang . Bidirectional and Asymmetric Quantum Controlled Teleportation by a Genuine 7-qubit Entangled State[J]. Chinese Journal of Quantum Electronics, 2020, 37(1): 34-42.

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