Quantum Secure Direct Communication via Quantum Encryption

Abstract

Abstract:

Based on quantum encryption and Ping-Pong protocol, a quantum secure direct communication protocol was proposed. In this protocol, sender and receiver used n pairs Bell states as carrier, sender entangled single particles in carriers by performing controlled-Not operations and receiver disentangled single particles in carriers also by performing controlled-Not operations. Communication partners performed control mode and message mode in turn, control mode detecting eavesdropping and massage mode sending secret message. Control mode and message mode did not break Bell states so the process of sharing Bell states was one-time, then communication partners could execute control mode and message mode again and again to detect eavesdropping and send secret messages.

Key words: quantum optics, quantum secure direct communication, quantum encryption, eavesdropping detected

CLC Number:

O431.2

Qian Peng, Li Xinghua. Quantum Secure Direct Communication via Quantum Encryption[J]. J4, 2015, 32(6): 686-690.

References

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