An efficient deterministic secure quantum communication scheme based on cluster states and identity authentication |
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| Authors: | Liu Wen-Jie Chen Han-Wu Ma Ting-Huai Li Zhi-Qiang Liu Zhi-Hao and Hu Wen-Bo |
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| Affiliation: | School of Computer Science and Engineering, Southeast University, Nanjing 210096, China; School of Computer and Software, Nanjing University of Information Science and Technology, Nanjing 210044, China; College of Information Engineering, Yangzhou University, Yangzhou 225009, China |
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| Abstract: | A novel efficient deterministic secure quantum communication scheme
based on four-qubit cluster states and single-photon identity
authentication is proposed. In this scheme, the two authenticated
users can transmit two bits of classical information per cluster
state, and its efficiency of the quantum communication is 1/3, which
is approximately 1.67 times that of the previous protocol presented
by Wang et al Chin. Phys. Lett. 23 (2006) 2658].
Security analysis shows the present scheme is secure against
intercept-resend attack and the impersonator's attack. Furthermore,
it is more economic with present-day techniques and easily processed
by a one-way quantum computer. |
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| Keywords: | deterministic secure quantum
communication cluster state identity authentication |
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