Generation of Multipartite Ionic Entangled States only by Single-Qubit Measurements via Linear Optical Elements  

作　　者：董萍 曹卓良 

机构地区：[1]Key Laboratory of Opto-electronic Information Acquisition and Manipulation (Ministry of Education), School of Physics and Material Science, Anhui University, Hefei 230039

出　　处：《Chinese Physics Letters》2007年第2期348-351,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 60678022, the Doctoral Fund of Ministry of Education of China under Grant No 20060357008, the Programme of the Education Department of Anhui Province under Grant Nos 2006KJ070A and 2006KJ057B, and the Talent Foundation of Anhui University.

摘　　要：We propose a scheme for generation of multipartite ionic Greenberger-Horne-Zeilinger （GHZ） states only by single-qubit measurements. Our scheme not only does not need joint measurements but also avoids the difficulty of synchronizing the arrival time of the two scattered photons, which is faced by the previous schemes. Therefore our entanglement generation scheme can be implemented more easily than the schemes based on atomic interference in experiment.We propose a scheme for generation of multipartite ionic Greenberger-Horne-Zeilinger （GHZ） states only by single-qubit measurements. Our scheme not only does not need joint measurements but also avoids the difficulty of synchronizing the arrival time of the two scattered photons, which is faced by the previous schemes. Therefore our entanglement generation scheme can be implemented more easily than the schemes based on atomic interference in experiment.

关 键 词：BELL THEOREM QUANTUM 

分 类 号：O413[理学—理论物理]