Effect of Phase Shift in Dual-Rail Perfect State Transfer

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...

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Bibliographic Details
Published in:Communications in theoretical physics 2014-03, Vol.61 (3), p.299-304
Main Authors: Wang, Zhao-Ming, Zhang, Zhong-Jun, Gu, Yong-Jian
Format: Article
Language:English
Subjects:
Channels
Gain
Phase shift
Theoretical physics
传输
平均时间
成功概率
状态转移
相移
移相控制
自旋链
通信信道
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Summary: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.
ISSN:0253-6102
1572-9494
DOI:10.1088/0253-6102/61/3/05