Perfect state transfer in NEPS of some graphs

被引:12
作者
Zheng, Shasha [1 ,2 ]
Liu, Xiaogang [1 ,2 ]
Zhang, Shenggui [1 ,2 ]
机构
[1] Northwestern Polytech Univ, Dept Appl Math, Xian 710129, Shaanxi, Peoples R China
[2] Northwestern Polytech Univ, Xian Budapest Joint Res Ctr Combinator, Xian 710129, Shaanxi, Peoples R China
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
Perfect state transfer; NEPS of graphs; badly decomposed graph; cube;
D O I
10.1080/03081087.2018.1548555
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let G be a graph with adjacency matrix AG. The transition matrix of G corresponding to A(G) is denoted as H-AC (t) :-= exp(-it(AG) (t is an element of R, i = root-1). If there is some time t is an element of Rsuch that H-AG (tau)(u,v) has unit modulus, where u and v are distinct vertices in G, then we say that G admits perfect state transfer from u to v. In this paper, we first show that a non-complete extended p-sum (NEPS) with badly decomposed factors has no perfect state transfer. And then, we prove that NEPS of a cube with odd distance has perfect state transfer when the sum of elements in its basis is not zero and that NEPS of a cube with even distance exhibits perfect state transfer if and only if there is a tuple in the basis such that it has exact one coordinate which is valued 1.
引用
收藏
页码:1518 / 1533
页数:16
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