Unconditional secure two-way quantum dense key distribution

• 来源期刊: 中国物理（英文版）
• 关键词: quantum cryptography security two-way communication
• 年，卷（期）: 2007,（10）
• 页码范围: 2862-2866
• 页数: 5页
• 语种: 英文

摘要

In this paper, we present a two-way quantum dense key distribution protocol. With double check modes, our scheme is secure regardless of the presence of noises. And with a quantum teleportation process, secret message can be encoded deterministically even if the quantum channel is highly lossy. Therefore, our scheme can be used in a realistic quantum channel regardless of the presence of noises and channel losses.