Deterministic secure quantum communication without unitary operation based on high-dimensional entanglement swapping

By analysis of the basic properties of entanglement swapping of high-dimensional Bell states, a universal and general deterministic secure quantum communication (DSQC) protocol is proposed, in which unitary operation is not required. By making use of the results of high-dimensional Bell measurement,...

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Bibliographic Details
Published in:Science China. Information sciences 2012-02, Vol.55 (2), p.360-367
Main Authors: Liu, ZhiHao, Chen, HanWu, Liu, WenJie, Xu, Juan, Li, ZhiQiang
Format: Article
Language:English
Subjects:
Bells
Channels
Complement
Computer Science
Dimensional analysis
Entanglement
Error analysis
Information Systems and Communication Service
Mathematical analysis
Messages
Research Paper
Strategy
Subtraction
Upper bounds
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Summary:By analysis of the basic properties of entanglement swapping of high-dimensional Bell states, a universal and general deterministic secure quantum communication (DSQC) protocol is proposed, in which unitary operation is not required. By making use of the results of high-dimensional Bell measurement, the sender and the receiver can encode and decode the message respectively by performing the modular addition and subtraction. Two mutually complementary bases are constructed; and according to the property of mutual complement, a method for checking security of the high-dimensional quantum channel is put forward. Some common attack strategies are analyzed, and the corresponding error rates are calculated. Then the upper bound of the threshold of error rate is deduced.
ISSN:1674-733X
1869-1919
DOI:10.1007/s11432-011-4371-z