Secure deterministic communication in a quantum loss channel using quantum error correction code

• 来源期刊: 中国物理（英文版）
• 关键词: quantum error correction quantum loss channel deterministic communication
• 年，卷（期）: 2007,（5）
• 页码范围: 1229-1232
• 页数: 4页
• 语种: 英文

摘要

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.