arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.08992quant-ph
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二面体群Cayley图上的三态量子行走

Three-state quantum walk on the Cayley Graph of the Dihedral Group

Ying Liu, Jiabin Yuan, Wenjing Dai, Dan Li

摘要:

由一次旋转和一次反射生成的有限二面体群是非阿贝尔群的最简单情况。凯莱图是群的图形对应。本文主要研究二面体群的Cayley图。考虑到二面体群中元素的特性,提出了一种在Grover币二面体群的Caylay图上的三态离散时间量子行走模型。我们从原点出发,推导出位置概率分布和收益概率长时限的解析表达式。结果表明,局域化效应取决于潜在的二面角群的大小,硬币运营商和初始状态。我们还通过概率分布和指定位置的时间平均概率数值研究了所提出的模型的属性。二面体群的Caylay图上的三态Grover DTQW现象的丰富性可以帮助人们更好地理解和开发新的量子算法。

英文摘要:

The finite dihedral group generated by one rotation and one reflection is the simplest case of the non-abelian group. Cayley graphs are diagrammatic counterparts of groups. In this paper, much attention is given to the Cayley graph of the dihedral group. Considering the characteristics of the elements in the dihedral group, we propose a model of three-state discrete-time quantum walk (DTQW) on the Caylay graph of the dihedral group with Grover coin. We derive analytic expressions for the the position probability distribution and the long-time limit of the return probability starting from the origin. It is shown that the localization effect is governed by the size of the underlying dihedral group, coin operator and initial state. We also numerically investigate the properties of the proposed model via the probability distribution and the time-averaged probability at the designated position. The abundant phenomena of three-state Grover DTQW on the Caylay graph of the dihedral group can help the community to better understand and to develop new quantum algorithms.

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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