Scheme for Robust Storage of Multi-particle Entanglement with a Cavity QED System  

作　　者：CHEN Chang-Yong LI Shao-Hua GAO Ke-Lin 

机构地区：[1]Department of Physics and Electronics Information and Engineering, Hunan Institute of Humanity and Science and Technology, Loudi 417000, China [2]State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, the Chinese Academy of Sciences, Wuhan 430071, China

出　　处：《Communications in Theoretical Physics》2006年第4X期617-622,共6页理论物理通讯（英文版）

基　　金：The project partially supported by Natural Science Foundation of Hunan Province of China under Grant No. 05JJ30005, the Science Research Fund of Educational Department of Hunan Province under Grant Nos. 05C756 and 06C766, National Natural Science Foundation of China under Grant Nos. 10274093 and 10474118, the Foundation for Youth Core-Teachers of Hunan Province under Grant No. 2003165, and the Science Research Fund of Hunan Institute of Humanity and Science and Technology under Grant No. 2005A001.We would like to thank Dr. Wen-Xing Yang and Xiao-Long Zhang for many helpful discussions.

摘　　要：We propose a scheme for robustly storing multi-atom entangled states involving Bell states, three-particle W-state, n-particle W-like-states, generalized multi-particle W-states, n-particle GHZ-states, and partially entangled states in cavity QED. Our scheme can preserve the internal structure of the entangled states above, with only generation of a global phase corresponding to each of entangled states during the storage of them. One single-mode cavity and n identical two-level atoms are required. Our scheme may be realized in the present technology. The idea may be also utilized to store multi-trapped-ion entangled states in linear ion trap.

关 键 词：Bell states W-states multi-particle entanglement 

分 类 号：O413[理学—理论物理]