Chin. Phys. Lett.  2004, Vol. 21 Issue (4): 601-603    DOI:
Original Articles |
Deterministic Secure Communication Without Using Entanglement
CAI Qing-Yu;LI Bai-Wen
Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071
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Abstract We show a deterministic secure direct communication protocol using single qubit in a mixed state. The security of this protocol is based on the security proof of BB84 protocol. It can be realized by the current technologies.
Keywords: 03.67.Dd      03.67.Hk      03.67.-a     
Published: 01 April 2004
PACS:  03.67.Dd (Quantum cryptography and communication security)  
  03.67.Hk (Quantum communication)  
  03.67.-a (Quantum information)  
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CAI Qing-Yu, LI Bai-Wen 2004 Chin. Phys. Lett. 21 601-603
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