Generation of Two-Atom Cluster State via Cavity QED  

作　　者：向少华 宋克慧 

机构地区：[1]Department of Physics and Electronic Information Science, Huaihua University, Huaihua 418008 [2]Research Institute of Information Science, Huaihua University, Huaihua 418008

出　　处：《Chinese Physics Letters》2006年第6期1466-1469,共4页中国物理快报（英文版）

基　　金：Supported by the Natural Science Foundation of the Education Department of Hunan Province under Grant No 05C696.

摘　　要：We propose a physical scheme for generating a two-atom cluster state through the simultaneous interaction of two two-level atoms with a single-mode cavity field prepared initially in an odd-coherent state under a large-detuned limit. The influence of the dissipation constant, the intensity of the field and the imperfect manipulation on the preparation scheme are investigated. It is shown that when the intensity of the cavity is large enough, the influence of the cavity decay is ettlciently suppressed. The possible error in the implementation of the cluster state is negligible when the time difference between two atoms crossing the cavity axis is small. It is suggested that the scheme can be realized by current technologies.We propose a physical scheme for generating a two-atom cluster state through the simultaneous interaction of two two-level atoms with a single-mode cavity field prepared initially in an odd-coherent state under a large-detuned limit. The influence of the dissipation constant, the intensity of the field and the imperfect manipulation on the preparation scheme are investigated. It is shown that when the intensity of the cavity is large enough, the influence of the cavity decay is ettlciently suppressed. The possible error in the implementation of the cluster state is negligible when the time difference between two atoms crossing the cavity axis is small. It is suggested that the scheme can be realized by current technologies.

关 键 词：ENTANGLEMENT 

分 类 号：O562[理学—原子与分子物理]