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Secure deterministic communication scheme based on quantum remote state preparation
Authors:Guo Ying  Chen Zhi-Gang and Zeng Gui-Hua
Institution:School of Information Science and Engineering, Central South University, Changsha 410083, China; Department of Electronic Engineering, Shanghai Jiaotong University, Shanghai 200030, China
Abstract:Based on the techniques of the quantum remote state preparation via a deterministic way, this paper proposes a quantum communication scheme to distribute the secret messages in two phases, i.e., the carrier state checking phase and the message state transmitting phase. In the first phase, the secret messages are encoded by the sender using a stabilizer quantum code and then transmitted to the receiver by implementing three CNOT gates. In the second phase, the communicators check the perfectness of the entanglement of the transmitted states. The messages can be distributed to the receiver even if some of the transmitted qubits are destroyed.
Keywords:Quantum deterministic communication  quantum error-correction code  quantum cryptography  quantum computing
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