Generation of atomic Greenberger-Horne-Zeilinger states and cluster states through cavity-assisted interaction  

作　　者：黄秀花 林秀敏 林功伟 陈志华 汤耀祥 

机构地区：[1]School of Physics and Optoelectronics Technology, Fujian Normal University

出　　处：《Chinese Physics B》2008年第12期4382-4387,共6页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No 10574022);the Natural Science Foundation of Fujian Province of China (Grant Nos 2007J0002 and 2006J0230);the Foundation for Universities in Fujian Province (Grant No 2007F5041)

摘　　要：This paper proposes a scalable scheme to generate n-atom GHZ states and cluster states by using the basic building block, i.e., a weak coherent optical pulse [α） being reflected successively from a single-atom cavity. In the schemes, coherent state of light is used instead of single photon source, homodyne measurement on coherent light is done kastead of single photon detection, and no need for individually addressing keeps the schemes easy to implement from the experimental point of view. The successful probabilities of our protocols approach unity in the ideal case.This paper proposes a scalable scheme to generate n-atom GHZ states and cluster states by using the basic building block, i.e., a weak coherent optical pulse [α） being reflected successively from a single-atom cavity. In the schemes, coherent state of light is used instead of single photon source, homodyne measurement on coherent light is done kastead of single photon detection, and no need for individually addressing keeps the schemes easy to implement from the experimental point of view. The successful probabilities of our protocols approach unity in the ideal case.

关 键 词：GHZ state cluster states cavity QED 

分 类 号：O431.2[机械工程—光学工程] O561[理学—光学]