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arXiv 2311.16366quant-ph
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一维连续时间开放量子行走:矩阵值正交多项式与Lindblad生成元

Continuous-time open quantum walks in one dimension: matrix-valued orthogonal polynomials and Lindblad generators

Newton Loebens

AI总结:

该研究通过矩阵表示探究一维连续时间开放量子行走,结合矩阵值正交多项式分析统计量,推导量子生灭过程类Lindblad生成元的显式结果,区分顶点数有限与无限的技术差异,适配结果将折叠技巧用于整数生灭链,还研究了关联矩阵值Stieltjes变换。

摘要:

我们通过矩阵表示研究一维连续时间开放量子行走,重点关注存在关联权重矩阵的最近邻跃迁情形。我们借助矩阵值正交多项式研究位点 recurrence 等统计量,并针对模拟量子版生灭过程的几类Lindblad生成元得到了显式计算结果。我们着重区分了顶点数目有限与无限情形的技术差异。我们改写了开放量子行走的最新结果,以便将折叠技巧应用于整数集上的连续时间生灭链。最后,我们研究了与这些权重相关联的矩阵值Stieltjes变换。

英文摘要:

We study continuous-time open quantum walks in one dimension through a matrix representation, focusing on nearest-neighbor transitions for which an associated weight matrix exists. Statistics such as site recurrence are studied in terms of matrix-valued orthogonal polynomials and explicit calculations are obtained for classes of Lindblad generators that model quantum versions of birth-death processes. Emphasis is given to the technical distinction between the cases of a finite or infinite number of vertices. Recent results for open quantum walks are adapted in order to apply the folding trick to continuous-time birth-death chains on the integers. Finally, we investigate the matrix-valued Stieltjes transform associated to the weights.

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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