Recently, the staggered quantum walk (SQW) on a graph is discussed as a generalization of coined quantum walks on graphs and Szegedy walks. We present a formula for the time evolution matrix of a 2-tessellable SQW on a graph, and so directly give its spectra. Furthermore, we extend these results to a 3-tessellable SQW and an n(>= 4)-tessellable SQW on a graph under some condition. (C) 2020 Elsevier Inc. All rights reserved.
机构:
College of Industrial Technology, Nihon University, Chiba, Narashino,275-8576, JapanCollege of Industrial Technology, Nihon University, Chiba, Narashino,275-8576, Japan
Machida, Takuya
[J].
Quantum Information and Computation,
2021,
21
(1-2):
: 19
-
36