Quantum storage of optical signals and coherent manipulation of quantum states based on electromagnetically induced transparency  

作　　者：WANG Hai XIE ChangDe PENG KunChi 

机构地区：[1]State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Opto-Electronics,Shanxi University,Taiyuan 030006,China

出　　处：《Chinese Science Bulletin》2012年第16期1893-1902,共10页

基　　金：supported by the National Basic Research Program of China (2010CB923103);the National Natural Science Foundation of China (10874106, 60821004 and 10904086)

摘　　要：Electromagnetically induced transparency (EIT) techniques are important tools for the storage of the quantum states of light fields in atomic ensembles and for enhancement of the interaction between photons. In this paper, we briefly summarize the recent experimental studies conducted by our group on enhanced cross-phase modulation based on double EIT effects, the quantum interference of stored dual-channel spin-wave excitations and the coherent manipulation of the spin wave vector for the polarization of photons in a single tripod atomic system. The work presented here has potential application in the developing field of quantum information processing.Electromagnetically induced transparency （EIT） techniques are important tools for the storage of the quantum states of light fields in atomic ensembles and for enhancement of the interaction between photons. In this paper, we briefly summarize the recent experimental studies conducted by our group on enhanced cross-phase modulation based on double EIT effects, the quantum interference of stored dual-channel spin-wave excitations and the coherent manipulation of the spin wave vector for the polarization of photons in a single tripod atomic system. The work presented here has potential application in the developing field of quantum information processing.

关 键 词：信号存储 量子态 电磁诱导透明 操纵 相干 电磁感应透明 交叉相位调制 量子信息处理 

分 类 号：O431.2[机械工程—光学工程]