activity
19972026
most citedSize distribution of particles in Saturn's rings from aggregation and fragmentation

146 citations · 2.6k across the 147 of their papers we have counts for

collaborators

147 papers

cond-mat.stat-mech2026

Weakly Nonlinear Dynamics of Unstable Modes in Jammed Amorphous Solids

Kota Noto, Harukuni Ikeda, Kuniyasu Saitoh +1

We investigate the structural evolution in jammed amorphous solids by analyzing the eigenmodes of a generalized Hessian matrix that incorporates spatial modulation via wave numbers…

cond-mat.stat-mech2023★ 110 cited

Quantum Mpemba effect in a quantum dot with reservoirs

Amit Kumar Chatterjee, Satoshi Takada, Hisao Hayakawa

We demonstrate the quantum Mpemba effect in a quantum dot coupled to two reservoirs, described by the Anderson model. We show that the system temperatures starting from two differe…

cond-mat.soft2022★ 9 cited

Eigenvalue analysis of stress-strain curve of two-dimensional amorphous solids of dispersed frictional grains with finite shear strain

Daisuke Ishima, Kuniyasu Saitoh, Michio Otsuki +1

The stress-strain curve of two-dimensional frictional dispersed grains interacting with a harmonic potential without considering the dynamical slip under a finite strain is determi…

cond-mat.soft2022★ 3 cited

An exact expression of three-body system for the complex shear modulus of frictional granular materials

Michio Otsuki, Hisao Hayakawa

We propose a simple model comprising three particles to study the nonlinear mechanical response of jammed frictional granular materials under oscillatory shear. Owing to the introd…

cond-mat.stat-mech2022★ 3 cited

Counter-flow induced clustering: Exact results

Amit Kumar Chatterjee, Hisao Hayakawa

We analyze the cluster formation in a non-ergodic stochastic system as a result of counter-flow, with the aid of an exactly solvable model. To illustrate the clustering, a two spec…

cond-mat.soft2022★ 3 cited

Theory of rigidity and numerical analysis of density of states of two-dimensional amorphous solids with dispersed frictional grains in the linear response regime

Daisuke Ishima, Kuniyasu Saitoh, Michio Otsuki +1

Using the Jacobian matrix, we obtain theoretical expression of rigidity and the density of states of two-dimensional amorphous solids consisting of frictional grains in the linear…