Abstract 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 |$\alpha\rangle$ 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 instead 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.
Received: 30 March 2008
Revised: 15 April 2008
Accepted manuscript online:
Fund: 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), and the Foundation for Universities in Fujian
Province (Grant No 200
Cite this article:
Huang Xiu-Hua (黄秀花), Lin Xiu-Min (林秀敏), Lin Gong-Wei (林功伟), Chen Zhi-Hua (陈志华), Tang Yao-Xiang (汤耀祥) Generation of atomic Greenberger-Horne-Zeilinger states and cluster states through cavity-assisted interaction 2008 Chin. Phys. B 17 4382
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