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arXiv 2602.13686quant-phcs.DMmath-phmath.GRmath.MP
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来自带有自环的完全图上Grover行走的群结构及其应用

A group structure arising from Grover walks on complete graphs with self-loops and its application

Tokyo University of Information Sciences(东京都信息科学大学);Nara University of Education(奈良教育大学)

Tatsuya Tsurii, Naoharu Ito

AI总结:

本文通过群论方法分析带有自环的完全图上Grover行走的代数结构,揭示其周期行为的内在对称性。

摘要:

本文介绍了一个群论框架,用于分析带有自环的完全图上Grover行走的代数结构。我们构造了一个由Grover矩阵和一个其条目是复单位根幂的对角矩阵生成的群。然后我们刻画了由此得到的商群,该商群由涉及这些矩阵的交换子群所定义。我们证明该商群与一个有限循环群同构,其结构取决于顶点数的奇偶性。该群论刻画揭示了Grover行走时间演化的内在对称性,并提供了理解其周期行为的代数框架。

英文摘要:

This paper introduces a group-theoretic framework to analyze the algebraic structure of the Grover walk on a complete graph with self-loops. We construct a group generated by the Grover matrix and a diagonal matrix whose entries are powers of a complex root of unity. We then characterize the resulting quotient group, which is defined using a subgroup formed by commutators involving these matrices. We show that this quotient group is isomorphic to a finite cyclic group whose structure depends on the parity of the number of vertices. This group-theoretic characterization reveals underlying symmetries in the time evolution of the Grover walk and provides an algebraic framework for understanding its periodic behavior.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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