Arbitrarily long distance quantum communication using inspection and power insertion

• 来源期刊: 科学通报(英文版)
• 年，卷（期）: 2009,（1）
• 页码范围: 158-162
• 页数: 5页
• 语种: 英文
• DOI: 10.1007/s11434-008-0581-1

摘要

The biggest obstacle for long distance quantum communication is the channel loss and the channel noise on photons. In this paper, a method to solve this problem was analyzed using inspection and power insertion (IPI). It is proved that quantum communication may be established over arbitrarily long distance using this technology. The amount of resources required is a polynomial function of the dis-tance. IPI is proposed as a general technique to prolong quantum secure direct communication where secret messages are transmitted directly over a quantum channel.