activity
20062026
most citedFluctuation Analysis of Time-Averaged Mean-Square Displacement for Langevin Equation with Time-Dependent and Fluctuating Diffusivity

78 citations · 499 across the 18 of their papers we have counts for

collaborators

18 papers

cond-mat.soft2026

Exact Generalized Langevin Dynamics of Pair Coordinates in Elastic Networks

Shunsuke Ando, Tomoya Urashita, Soya Shinkai +1

Generalized Langevin equations (GLEs) provide a powerful framework for describing slow dynamics in soft-matter systems, but deriving an exact homogeneous GLE (hGLE) for a reaction…

cond-mat.stat-mech2025★ 8 cited

Anomalous statistics in the Langevin equation with fluctuating diffusivity: from Brownian yet non-Gaussian diffusion to anomalous diffusion and ergodicity breaking

Takuma Akimoto, Jae-Hyung Jeon, Ralf Metzler +3

Diffusive motion is a fundamental transport mechanism in physical and biological systems, governing dynamics across a wide range of scales -- from molecular transport to animal for…

cond-mat.soft2024

Generalized Langevin dynamics for single beads in linear elastic network

Soya Shinkai, Shuichi Onami, Tomoshige Miyaguchi

We derive generalized Langevin equations (GLEs) for single beads in linear elastic networks. In particular, the derivations of the GLEs are conducted without employing normal modes…

cond-mat.stat-mech2022

Generalized Langevin equation with fluctuating diffusivity

Tomoshige Miyaguchi

A generalized Langevin equation with fluctuating diffusivity (GLEFD) is proposed, and it is shown that the GLEFD satisfies a generalized fluctuation-dissipation relation. If the me…

physics.data-an2021★ 4 cited

Detrended fluctuation analysis of earthquake data

Takumi Kataoka, Tomoshige Miyaguchi, Takuma Akimoto

The detrended fluctuation analysis (DFA) is extensively useful in stochastic processes to unveil the long-term correlation. Here, we apply the DFA to point processes that mimick ea…

cond-mat.stat-mech2019★ 39 cited

Brownian motion with alternately fluctuating diffusivity: Stretched-exponential and power-law relaxation

Tomoshige Miyaguchi, Takashi Uneyama, Takuma Akimoto

We investigate Brownian motion with diffusivity alternately fluctuating between fast and slow states. We assume that sojourn-time distributions of these two states are given by exp…