Doing more than just the structure—structural genomics in kinase drug discovery

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• 作者：Brian D Marsden ; Stefan Knapp
• 关键词：Proteomics ; Peptides ; Liquid chromatography ; High efficiency ; Ultra-high pressure ; Elevated temperature ; Column formats
• 刊名：Current Opinion in Chemical Biology
• 出版年：2008
• 出版时间：February 2008
• 年：2008
• 卷：12
• 期：1
• 页码：40-45
• 全文大小：1323 K

文摘

Quantum cryptography is a new technique that uses the laws of physics to transmit information securely. In such systems, the vehicle to transfer quantum information is a single photon. However, the transmission distance is limited by the absorption of photons in an optical fiber in which the maximum demonstrated range is about 100 km. Free-space quantum cryptography between a ground station and a satellite is a way of sending the quantum information further distances than that with optical fibers since there is no birefringence effect in the atmosphere. At the National Institute of Information and Communications Technology (NICT), the laser communication demonstration between the NICT optical ground station and a low earth orbit satellite was successfully conducted in 2006. For such space communication links, free-space quantum cryptography is considered to be an important application in the future. We have developed a prototype system for free-space quantum cryptography using a weak coherent light and a telecom communication channel. The preliminary results are presented.