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Random walk centrality is a fundamental metric in graph mining for quantifying node importance and influence, defined as the weighted average of hitting times to a node from all other nodes. Despite its ability to capture rich graph…

人工智能 · 计算机科学 2025-10-24 Changan Liu , Zixuan Xie , Ahad N. Zehmakan , Zhongzhi Zhang

Diverse facets Of the Theory of Quantum Walks on Graph are reviewed Till now .In specific, Quantum network routing, Quantum Walk Search Algorithm, Element distinctness associated to the eigenvalues of Graphs and the use of these relation…

数据结构与算法 · 计算机科学 2018-02-01 Tewabe Chekole

Large scale complex systems, such as social networks, electrical power grid, database structure, consumption pattern or brain connectivity, are often modeled using network graphs. Valuable insight can be gained by measuring the similarity…

量子物理 · 物理学 2019-03-01 Callum Schofield , Jingbo B. Wang , Yuying Li

In papers\cite{js,jsa}, the amplitudes of continuous-time quantum walk on graphs possessing quantum decomposition (QD graphs) have been calculated by a new method based on spectral distribution associated to their adjacency matrix. Here in…

量子物理 · 物理学 2009-11-13 M. A. Jafarizadeh , S. Salimi , R. Sufiani

We investigate the stability of continuous-time quantum walks (CTQW) across cycle, complete, star, Erd\H{o}s-R\'enyi, small-world, and scale-free topologies under energy-based intrinsic decoherence, node-based Haken-Strobl noise, and…

量子物理 · 物理学 2026-03-20 Adithya L J , Johannes Nokkala , Jyrki Piilo , Chandrakala Meena

The defining feature of memoryless quantum walks is that they operate on the vertex space of a graph, and therefore can be used to produce search algorithms with minimal memory. We present a memoryless walk that can find a unique marked…

量子物理 · 物理学 2022-04-21 Peter Høyer , Janet Leahy

In heterogeneous network systems such as ecological and social networks, structural stability depends on how connectivity changes under node removal, as different removal sequences can trigger distinct modes of systemic collapse. While…

物理与社会 · 物理学 2026-05-01 Yeonsu Jeong , Deok-Sun Lee , Mi Jin Lee , Seung-Woo Son

We explore the use of machine-learning techniques to detect quantum speedup in random walks on graphs. Specifically, we investigate the performance of three different neural-network architectures (variations on fully connected and…

量子物理 · 物理学 2023-09-06 Hanna Linn , Yu Zheng , Anton Frisk Kockum

Quantum walks on networks are a paradigmatic model in quantum information theory. Quantum-walk algorithms have been developed for various applications, including spatial-search problems, element-distinctness problems, and node centrality…

量子物理 · 物理学 2025-12-04 Lucas Böttcher , Mason A. Porter

We study the random walk problem on a deterministic scale-free network, in the presence of a set of static, identical targets; due to the strong inhomogeneity of the underlying structure the mean first-passage time (MFPT), meant as a…

统计力学 · 物理学 2014-09-04 Elena Agliari , Raffaella Burioni , Alessandro Manzotti

We present a quantum-dynamical framework for identifying structurally important residues in proteins based on continuous time quantum walks (CTQWs) on weighted residue interaction networks constructed from experimentally resolved…

量子物理 · 物理学 2026-04-21 Shah Ishmam Mohtashim , Manas Sajjan , Sabre Kais

This paper deals with the problem of the requirements for quantum systems that enable one to design efficient quantum algorithms. We rise the issue of the possibility to utilise the non-complete networks for algorithmic purposes. In…

量子物理 · 物理学 2015-06-15 Przemysław Sadowski

Quantum walks play an important role in the area of quantum algorithms. Many interesting problems can be reduced to searching marked states in a quantum Markov chain. In this context, the notion of quantum hitting time is very important,…

量子物理 · 物理学 2009-12-08 R. A. M. Santos , R. Portugal

We investigate the behavior of coherence in scattering quantum walk search on complete graph under the condition that the total number of vertices of the graph is greatly larger than the marked number of vertices we are searching, $N \gg…

量子物理 · 物理学 2020-03-19 Yun-Long Su , Si-Yuan Liu , Xiao-Hui Wang , Heng Fan , Wen-Li Yang

We show how a quantum walk can be used to find a marked edge or a marked complete subgraph of a complete graph. We employ a version of a quantum walk, the scattering walk, which lends itself to experimental implementation. The edges are…

量子物理 · 物理学 2015-05-14 Mark Hillery , Daniel Reitzner , Vladimir Buzek

Network centrality has important implications well beyond its role in physical and information transport analysis; as such, various quantum walk-based algorithms have been proposed for measuring network vertex centrality. In this work, we…

量子物理 · 物理学 2017-04-03 Josh A. Izaac , Xiang Zhan , Zhihao Bian , Kunkun Wang , ian Li , Jingbo B. Wang , Peng Xue

In this paper, we propose QWalkVec, a quantum walk-based node embedding method. A quantum walk is a quantum version of a random walk that demonstrates a faster propagation than a random walk on a graph. We focus on the fact that the effect…

量子物理 · 物理学 2024-08-19 Rei Sato , Shuichiro Haruta , Kazuhiro Saito , Mori Kurokawa

We examine the effect of network heterogeneity on the performance of quantum search algorithms. To this end, we study quantum search on a tree for the oracle Hamiltonian formulation employed by continuous-time quantum walks. We use…

量子物理 · 物理学 2016-03-09 Pascal Philipp , Luís Tarrataca , Stefan Boettcher

The Grover walk, which is related to the Grover's search algorithm on a quantum computer, is one of the typical discrete time quantum walks. However, a localization of the two-dimensional Grover walk starting from a fixed point is striking…

量子物理 · 物理学 2009-11-10 Norio Inui , Yoshinao Konishi , Norio Konno

Using Memory Tabu Search(MTS) algorithm, we investigate the relationship between structural characters and synchronizability of scale-free networks by maximizing and minimizing the ratio $Q$ of the eigenvalues of the coupling matrix by…

数据分析、统计与概率 · 物理学 2007-05-23 Jian-Guo Liu , Yan-Zhong Dang , Qiang Guo , Zhong-Tuo Wang