Generation of a χ-type four-atom entangled state  

作　　者：沈洪武 王洪福 计新 张寿 

机构地区：[1]Department of Physics,College of Science,Yanbian University [2]Center for the Condensed-Matter Science and Technology,Harbin Institute of Technology

出　　处：《Chinese Physics B》2009年第9期3706-3709,共4页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No 60667001);the Science Foundation of Yanbian University,China (Grant No 2007-35)

摘　　要：This paper proposes a scheme to generate a new x-type four-atom entangled state for the first time by using linear optics elements, four one-sided cavities （one three-level atom） and a conventional photon detector. The linear optical elements and conventional photon detector are simple and accessible in experiments, which makes the scheme more feasible with current technology. In addition, the state ｜X^00）3214 with probability 1 can be generated as long as there is no photon loss.This paper proposes a scheme to generate a new x-type four-atom entangled state for the first time by using linear optics elements, four one-sided cavities （one three-level atom） and a conventional photon detector. The linear optical elements and conventional photon detector are simple and accessible in experiments, which makes the scheme more feasible with current technology. In addition, the state ｜X^00）3214 with probability 1 can be generated as long as there is no photon loss.

关 键 词：quantum entanglement linear optics x-type entangled state 

分 类 号：O431.2[机械工程—光学工程] U270.7[理学—光学]