Perfect state transfer on distance-regular graphs and association schemes
Perfect state transfer on distance-regular graphs and association schemes
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DOI:
10.1016/j.laa.2015.03.024
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发表时间:
2014-01
影响因子:
1.1
通讯作者:
G. Coutinho;C. Godsil;Krystal Guo;F. Vanhove
中科院分区:
文献类型:
--
作者:
G. Coutinho;C. Godsil;Krystal Guo;F. Vanhove
We consider the representation of a continuous-time quantum walk in a graph X by the matrix exp(− i t A (X)). We provide necessary and sufficient criteria for distance-regular graphs and, more generally, for graphs in association schemes to have perfect state transfer. Using these conditions, we provide several new examples of perfect state transfer in simple graphs.