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
G. Coutinho;C. Godsil;Krystal Guo;F. Vanhove
中科院分区:
数学3区
文献类型:
--
作者:
G. Coutinho;C. Godsil;Krystal Guo;F. Vanhove

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我们考虑图X中的连续时间量子行走的矩阵exp <$(− i t A(X))表示。我们提供了必要和充分的标准,距离正则图,更一般地说,在关联计划的图形有完美的状态转移。利用这些条件,我们提供了几个新的例子,完美的状态转移简单的图形。
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.