activity
20222026
collaborators

10 papers

math.PR2026

Walk/Zeta correspondence for quantum walks on path graphs: a pre-geometric structure implied by a generalized reflection principle

Jiro Akahori, Riki Kitano, Norio Konno +1

We establish a local Konno-Sato correspondence for reflected random and Szegedy walks on a finite path graph. A generalized reflection principle, using explicit involutions rather…

quant-ph2025

Spectral analysis of hierarchical continuous-time quantum walks

Jirô Akahori, Yusuke Ide, Tomoki Kato +3

In this paper, we introduce hierarchical random walks at first. In this model, we use two types of random walkers, {global and local} walkers. The global walker chooses a local wal…

quant-ph2025

Grover algorithm and absolute zeta functions

Jirô Akahori, Kazuki Horita, Norio Konno +3

The Grover algorithm is one of the most famous quantum algorithms. On the other hand, the absolute zeta function can be regarded as a zeta function over defined by…

quant-ph2025

Periodicity and absolute zeta functions of multi-state Grover walks on cycles

Jirô Akahori, Norio Konno, Iwao Sato +1

Quantum walks, the quantum counterpart of classical random walks, are extensively studied for their applications in mathematics, quantum physics, and quantum information science. T…

quant-ph2024

Absolute zeta functions for zeta functions of quantum walks

Jirô Akahori, Norio Konno, Rikuki Okamoto +1

This paper presents a connection between the quantum walk and the absolute mathematics. The quantum walk is a quantum counterpart of the classical random walk. We especially deal w…

quant-ph2024

Multi-dimensional continuous time quantum walks related to the birth and death chains

Yusuke Ide, Norio Konno, Akihiro Narimatsu

In this paper, we consider multi-dimensional birth and death chains and continuous time quantum walks (CTQW) related to them. For CTQW related to our forms of multi-dimensional bir…

quant-ph2024

Absolute zeta functions and periodicity of quantum walks on cycles

Jirô Akahori, Norio Konno, Iwao Sato +1

The quantum walk is a quantum counterpart of the classical random walk. On the other hand, absolute zeta functions can be considered as zeta functions over . This stu…

quant-ph2024

A quantization of interacting particle systems

Jirô Akahori, Norio Konno, Rikuki Okamoto +1

Interacting particle systems studied in this paper are probabilistic cellular automata with nearest-neighbor interaction including the Domany-Kinzel model. A special case of the Do…

quant-ph2023

Spectral analysis of three-state quantum walks with general coin matrices

Chusei Kiumi, Jirô Akahori, Takuya Watanabe +1

Mathematical analysis of the spectral properties of the time evolution operator in quantum walks is essential for understanding key dynamical behaviors such as localization and lon…

math.CO2022

Metzler/Zeta Correspondence

Yusuke Ide, Takashi Komatsu, Norio Konno +1

We present an explicit formula for the determinant on the Metzler matrix of a digraph . Furthermore, we introduce a walk-type zeta function with respect to this Metzler matrix o…