Abstract The loss of a quantum channel leads to an irretrievable particle loss as well as information. In this paper, the loss of quantum channel is analysed and a method is put forward to recover the particle and information loss effectively using universal quantum error correction. Then a secure direct communication scheme is proposed, such that in a loss channel the information that an eavesdropper can obtain would be limited to arbitrarily small when the code is properly chosen and the correction operation is properly arranged.
Received: 09 June 2006
Revised: 01 December 2006
Accepted manuscript online:
(Quantum error correction and other methods for protection against decoherence)
Fund: Project supported by the
National Natural Science Foundation of China (Grant No~10504042).
Cite this article:
Wu Shuang(吴双), Liang Lin-Mei(梁林梅), and Li Cheng-Zu(李承祖) Secure deterministic communication in a quantum loss channel using quantum error correction code 2007 Chinese Physics 16 1229
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