Efficient Excitation of a Symmetric Collective Atomic State with a Single-Photon Through Dipole Blockade

作     者：洪方昱 熊诗杰 傅景礼 朱志艳 

作者机构：Department of PhysicsCenter for Optoelectronics Materials and DevicesZhejiang Sci-Tech UniversityXiasha College Park National Laboratory of Solid State Microstructures and Department of PhysicsNanjing University 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2013年第59卷第3期

页      面：365-369页

核心收录：

学科分类：07[理学] 070203[理学-原子与分子物理] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos. 61076094,11072218,and 11272287 Zhejiang Provincial Natural Science Foundation of China under Grant No. Y6110314 Scientific Research Fund of Zhejiang Provincial Education Department under Grant No. Y200909693 

主　　题：偶极相互作用 单光子发射 集体激发 原子态 对称 封锁 原子状态 成功概率 

摘      要：In the famous quantum communication scheme developed by Duan et al.[L.M.Duan,M.D.Lukin,J.I.Cirac,and P.Zoller,Nature(London) 414(2001) 413],the probability of successful generating a symmetric collective atomic state with a single-photon emitted have to be far smaller than 1 to obtain an acceptable entangled state.Based on strong dipole-dipole interaction between two Rydberg atoms,two simultaneous excitations in an atomic ensemble are greatly suppressed,which makes it possible to excite a mesoscopic cold atomic ensemble into a near-ideal singly-excited symmetric collective state accompanied by a signal-photon with near unity success probability.