Generation of W States with Many Superconducting-Quantum-Interference-Devices in Cavity QED  

作　　者：詹志明 

机构地区：[1]School of Physics and Information Engineering,Jianghan University

出　　处：《Communications in Theoretical Physics》2010年第8期355-358,共4页理论物理通讯（英文版）

基　　金：Supported by National Natural Science Foundation of China under Grant No.10704017

摘　　要：We propose a scheme to generate the W states with many SQUIDs (superconducting-quantum-interferencedevices)in cavity QED via Raman transition.In this scheme,the transfer of quantum information between the SQUIDsand cavity is not required.And the cavity field is only virtually excited,thus the cavity decay is suppressed during theW states generation.The SQUIDs are always populated in the two ground states.Therefore,the scheme is insensitiveto the spontaneous emission of the excited level of the SQUID and cavity decay.

关 键 词：W states SUPERCONDUCTING Raman transition 

分 类 号：O413[理学—理论物理]