A quantum walk induced by Hoffman graphs and its periodicity
A quantum walk induced by Hoffman graphs and its periodicity
复制标题
霍夫曼图诱导的量子行走及其周期性
DOI:
10.1016/j.laa.2019.05.026
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发表时间:
2019
影响因子:
1.1
通讯作者:
Yoshie Yusuke
中科院分区:
文献类型:
--
作者:
Kubota Sho;Segawa Etsuo;Taniguchi Tetsuji;Yoshie Yusuke
In order to define the discrete-time quantum walks, we divide the vertex set of a graph by two partitions and give a time evolution operator by a product of two local unitary operators on each partition. In this paper, we make such partitions from a Hoffman graph, which gives generalization of line graphs, and study a staggered walk. We first show that the square of the time evolution operator of the Grover walk is unitarily equivalent to that of the staggered walk on the generalized line graph induced from a Hoffman graph. Furthermore, we focus on the periodicity of quantum walks and show that the staggered walk on the generalized line graph is periodic whenever the Grover walk on the original graph is periodic by using the unitary equivalence. This work is the first trial to develop the relation between quantum walks and Hoffman graphs.
影响因子:
2.5
作者:
R. Portugal;R. Santos;Tharso D. Fernandes;D. N. Gonçalves
通讯作者:
D. N. Gonçalves
DOI:
10.1088/1751-8121/aa8fba
发表时间:
2018
期刊:
Journal of Physics A: Mathematical and Theoretical
影响因子:
--
作者:
Ryota Matsubara;Haruhide Matsuda;Nana Matsuo;Kenta Noguchi;Kenta Ozeki;Yusuke HIGUCHI and Etsuo SEGAWA
通讯作者:
Yusuke HIGUCHI and Etsuo SEGAWA
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
Miharu Eguchi,Tetsuya Shimada,Haruo Inoue;Shinsuke Takagi;佐野良夫;江口 美陽;Asuka Inoue;MIharu Eguchi;佐野良夫;Asuka Inoue;Yoshio SANO
通讯作者:
Yoshio SANO