activity
20242026
most citedAnomalous statistics in the Langevin equation with fluctuating diffusivity: from Brownian yet non-Gaussian diffusion to anomalous diffusion and ergodicity breaking

8 citations · 16 across the 7 of their papers we have counts for

collaborators

7 papers

cond-mat.soft2026

A unified description of flow-induced scission of wormlike micelles under shear and extensional flows

Yusuke Koide, Takato Ishida, Takashi Uneyama +1

We investigate flow-induced scission of wormlike micelles under different flow kinematics using dissipative particle dynamics simulations of surfactant solutions in shear, uniaxial…

cond-mat.soft2026

Effect of flow kinematics on extensional viscosity of dilute polymer solutions

Yusuke Koide, Takato Ishida, Takashi Uneyama +1

We investigate the effect of flow kinematics on the extensional viscosity of dilute polymer solutions by conducting dissipative particle dynamics simulations under uniaxial, planar…

cond-mat.soft2025

Information-Theoretical Approach to Relaxation Time Distribution in Rheology: Log-Normal Relaxation Spectrum Model

Takashi Uneyama

The relaxation modulus of a viscoelastic fluid can be decomposed into multiple Maxwell models and characterized by the relaxation spectrum for the relaxation time. It is empiricall…

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★ 3 cited

Radius of Gyration in Shear Gradient Direction Governs Steady Shear Viscosity of Rouse-Type Model

Takashi Uneyama

We analyze the stress tensor and the gyration tensor of an unentangled polymer melt under flow by using a Rouse-type single chain model. We employ the bead-spring type single chain…

cond-mat.soft2024★ 5 cited

Coarse-Grained Simulation Model for Crystalline Polymer Solids by using Breakable Bonds

Takashi Uneyama

We propose a highly coarse-grained simulation model for crystalline polymer solids with crystalline lamellar structures. The mechanical properties of a crystalline polymer solid ar…

cond-mat.soft2024

Normal Modes of Rouse-Ham Symmetric Star Polymer Model

Takashi Uneyama

The Rouse-Ham model is a simple yet useful dynamics model for an unentangled branched polymer. In this work, we study the normal modes of the Rouse-Ham type coarse-grained symmetri…