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An efficient two-step quantum key distribution protocol with orthogonal product states 被引量:4
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作者 杨宇光 温巧燕 朱甫臣 《Chinese Physics B》 SCIE EI CAS CSCD 2007年第4期910-914,共5页
An efficient two-step quantum key distribution (QKD) protocol with orthogonal product states in the (×)(n ≥3) Hilbert space is presented. In this protocol, the particles in the orthogonal product states fo... An efficient two-step quantum key distribution (QKD) protocol with orthogonal product states in the (×)(n ≥3) Hilbert space is presented. In this protocol, the particles in the orthogonal product states form two particle sequences. The sender, Alice, first sends one sequence to the receiver, Bob. After Bob receives the first particle sequence, Alice and Bob check eavesdropping by measuring a fraction of particles randomly chosen. After ensuring the security of the quantum channel, Alice sends the other particle sequence to Bob. By making an orthogonal measurement on the two particle sequences, Bob can obtain the information of the orthogonal product states sent by Alice. This protocol has many distinct features such as great capacity, high efficiency in that it uses all orthogonal product states in distributing the key except those chosen for checking eavesdroppers. 展开更多
关键词 quantum key distribution orthogonal product state orthogonal measurement
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An efficient quantum key distribution protocol with orthogonal product states 被引量:1
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作者 杨宇光 温巧燕 《Chinese Physics B》 SCIE EI CAS CSCD 2007年第8期2215-2218,共4页
An efficient quantum key distribution (QKD) protocol with orthogonal product states in the 3 3 Hilbert space is presented. The sender, Alice, disorders the orthogonal product state sequence and sends it to Bob. Aft... An efficient quantum key distribution (QKD) protocol with orthogonal product states in the 3 3 Hilbert space is presented. The sender, Alice, disorders the orthogonal product state sequence and sends it to Bob. After Alice has published the matching information of the particle sequence, Bob recovers the correct correspondences and makes an orthogonal measurement on the orthogonal product states to obtain the information sent by Alice. Finally, security analysis is also made. 展开更多
关键词 quantum key distribution orthogonal product state orthogonal basis measurement
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