Generation of atomic Greenberger-Horne-Zeilinger states and cluster states through cavity-assisted interaction |
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Authors: | Huang Xiu-Hu Lin Xiu-Min Lin Gong-Wei Chen Zhi-Hua and Tang Yao-Xiang |
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Institution: | School of Physics and Optoelectronics Technology, Fujian
Normal University, Fuzhou 350007, China |
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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 $\left\vert \alpha\right\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. |
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Keywords: | GHZ state cluster states cavity QED |
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