Measurement-device-independent quantum secure direct communication

查看全文 作　　者：ZengRong [1,2,3,4]Zhou;Yu Bo [5,6,7]Sheng;PengHao [1,2,3,4]Niu;LiuGuo [8,9]Yin;GuiLu [1,2,8,9]Long;Lajos [10]Hanzo

机构地区：[1]State Key Laboratory of Low-dimensional Quantum Physics,Beijing 100084,China;[2]Department of Physics,Tsinghua University,Beijing 100084,China;[3]Collaborative Innovation Center of Quantum Matter,Beijing 100084,China;[4]Beijing Academy of Quantum Information,Beijing 100084,China;[5]Institute of Quantum Information and Technology,Nanjing University of Posts and Telecommunications,Nanjing 210003,China;[6]College of Telecommunications&Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China;[7]Key Lab of Broadband Wireless Communication and Sensor Network Technology,Ministry of Education,Nanjing University of Posts and Telecommunications,Nanjing 210003,China;[8]Beijing National Research Center for Information Science and Technology,Beijing 100084,China;[9]School of Information and Technology,Tsinghua University,Beijing 100084,China;[10]School of Electronics and Computer Science,University of Southampton,Southampton SO171BJ,UK

出　　处：《Science China(Physics,Mechanics & Astronomy)》索引2020年第63卷第3期,共6页

基　　金：supported by the National Basic Research Program of China(Grant Nos.2017YFA0303700,and 2015CB921001);the National Natural Science Foundation of China(Grant Nos.61726801,11474168,11974189,and 11474181)。 摘　　要：Quantum secure direct communication(QSDC)is a unique technique,which supports the secure transmission of confidential information directly through a quantum channel without the need for a secret key and for ciphertext.Hence this secure communication protocol fundamentally differs from its conventional counterparts.In this article,we report the first measurement-deviceindependent(MDI)QSDC protocol relying on sequences of entangled photon pairs and single photons.Explicitly,it eliminates the security loopholes associated with the measurement device.Additionally,this MDI technique is capable of doubling the communication distance of its conventional counterpart operating without using our MDI technique.We also conceive a protocol associated with linear optical Bell-basis measurements,where only two of the four Bell-basis states could be measured.When the number of qubits in a sequence reduces to 1,the MDI-QSDC protocol degenerates to a deterministic MDI quantum key distribution protocol. 关键词：QUANTUM information secure COMMUNICATION QUANTUM COMMUNICATION

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Measurement-device-independent quantum secure direct communication

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