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Two Quantum Direct Communication Protocols Based on Quantum Search Algorithm
XU Shu-Jiang 1,CHEN Xiu-Bo 2,NIU Xin-Xin 2,YANG Yi-Xian 2
1. Information Security Center, State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China
2.Information Security Center, State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China
*Correspondence author
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Funding: The Specialized Research Fund for the Doctoral Program of Higher Education （No.20100005120002）
Opened online: 2 January 2014
Accepted by: none
Citation: XU Shu-Jiang,CHEN Xiu-Bo,NIU Xin-Xin.Two Quantum Direct Communication Protocols Based on Quantum Search Algorithm[OL]. [ 2 January 2014] http://en.paper.edu.cn/en_releasepaper/content/4576543
 
 
Based on the properties of two-qubit Grover's quantum search algorithm, we propose two quantum direct communication protocols, including a deterministic secure quantum communication and a quantum secure direct communication protocol. Secret messages can be directly sent from the sender to the receiver by using two-qubit unitary operations and the single photon measurement. Theoretical analysis shows that the security of the proposed protocols can be highly ensured.
Keywords:Quantum cryptography; Quantum direct communication; Deterministic secure quantum communication; Quantum secure direct communication; Quantum search algorithm
 
 
 

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