Generation of arbitrary four-atom entangled decoherence-free states  

作　　者：计新 吕天全 张寿 

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

出　　处：《Chinese Physics B》2009年第12期5168-5172,共5页中国物理B（英文版）

基　　金：Project 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 arbitrary four-atom entangled decoherence-free states by using simple linear optical elements, four one-sided cavities in which four atoms are confined respectively. By conveniently tuning the titled angle of one half-wave plate, it can obtain arbitrary four-atom entangled decoherence-free states with a successful probability of 1 as long as there is no photon loss.This paper proposes a scheme to generate arbitrary four-atom entangled decoherence-free states by using simple linear optical elements, four one-sided cavities in which four atoms are confined respectively. By conveniently tuning the titled angle of one half-wave plate, it can obtain arbitrary four-atom entangled decoherence-free states with a successful probability of 1 as long as there is no photon loss.

关 键 词：one-sided cavity linear optical element four-atom entangled decoherence-free states 

分 类 号：O431.2[机械工程—光学工程]