Scheme for Direct Measurement of Wigner Characteristic Function for Motion of a Single Trapped Ion

作     者：ZHANG Su-Zhen XIE Xiao-Tao YANG Wen-Xin 

作者机构：Department of Physics Huazhong University of Science and Technology Wuhan 430074 China State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Center for Cold Atom Physics Wuhan Institute of Physics and Mathematics the Chinese Academy of Sciences Wuhan 430071 China Graduate School the Chinese Academy of Sciences Beijing 100080 China 

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

年 卷 期：2006年第46卷第2X期

页      面：306-308页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：The project supported by National Fundamental Research Program of China under Grant No. 2005CB724508 and National Natural Science Foundation of China under Grant Nos. 60478029  90503010  and 10575040 .We would like to thank enlightening discussions professor Wu Ying for many 

主　　题：Wigner characteristic function trapped ion 

摘      要：In this paper, a procedure is proposed for measuring Wigner characteristic function for motion of a single trapped ion. In the scheme, the trapped ion is driven by two laser beams with different frequencies tuned to the first lower and upper vibrational sidebands, respectively. Unlike other previous scheme, our scheme does not require the displacement of the external state before the ion-laser interaction and thus our scheme night be more simple and feasible. The scheme can also be used to prepare the motional Schroedinger cat states and entangled coherent states.