A Quantum Communication Protocol Transferring Unknown Photons Using Path-Polarization Hybrid Entanglement  

作　　者：Jino Heo Chang Ho Hong Jong In Lim Hyung Jin Yang 

机构地区：[1]Graduate School of Information Security,Korea University,Anam 5-ga Sungbuk-gu,Seoul,South Korea [2]Center for Information Security Technologies(CIST),Korea University,Seoul,South Korea [3]Department of Physics,Korea University,Yunki-gun Chochiwon,Choongnam,South Korea

出　　处：《Chinese Physics Letters》2013年第4期5-9,共5页中国物理快报（英文版）

基　　金：the MKE(The Ministry of Know ledge Economy),Korea under the ITRC(Information Technology Research Center)support program(NIPA-2012-H0301-12-3007)supervised by the NIPA(National IT Industry Prormotion A gency).

摘　　要：We propose a protocol for transferring photons of unknown states to a distant location using path-polarization hybrid entanglement.Our protocol uses a polarizing beam splitter(PBS),a beam splitter(BS),a CNOT-operation,four unitary operations and polarizing detectors.In our protocol,the hybrid entangled states are generated by the PBS,and it is transmitted through the quantum channel containing the BS and CNOT-gate.The measurement results of the polarizing detectors and classical communications determine which unitary operation will be used in the last step for recovering initial states.The security of the channel in transmitting unknown photons between two parties is confirmed by the results of the measurement of each target photon in the control mode.

关 键 词：UNITARY POLARIZATION operations 

分 类 号：O41[理学—理论物理]