Effect of Phase Shift in Dual-Rail Perfect State Transfer  

作　　者：王兆明 张忠军 顾永建 

机构地区：[1]Department of Physics, Ocean University of China

出　　处：《Communications in Theoretical Physics》2014年第3期299-304,共6页理论物理通讯（英文版）

基　　金：Supported by National Natural Science Foundation of China under Grant Nos.11005099,60677044;the Fundamental Research Funds for the Central Universities under Grant No.201013037

摘　　要：We investigate the effect of phase shift on the perfect state transfer through two parallel one-dimensional ring-shaped spin chains. We find that the total success probability can be significantly enhanced by phase shift control when the communication channel consists of two odd chains. The average time to gain unit success probability is discussed, showing that a proper phase shift can be used to enhance the efficiency of state transmission.

关 键 词：perfect state transfer spin chain phase shift 

分 类 号：O469[理学—凝聚态物理]