4 papers
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…
Anomalous phonon dispersion near yielding in athermal crystals
Fumiaki Nakai, Michio Otsuki, Kuniyasu Saitoh +1
Vibrational properties of ordered athermal solids near yielding remain poorly understood. We show that yielding in a sheared crystal is governed not by a single localized instabili…
Relaxation dynamics and long-time tails explain shear-induced diffusion of soft athermal particles near jamming
Kuniyasu Saitoh, Takeshi Kawasaki
We numerically study shear-induced diffusion of soft athermal particles in two dimensions. The Green-Kubo (GK) formula is applicable to the shear-induced diffusion coefficient, whe…
Jamming transition and normal modes of polydispersed soft particle packing
Kuniyasu Saitoh, Brian P. Tighe
The jamming transition of soft particles characterized by narrow size distributions has been well studied by physicists. However, polydispersed systems are more relevant to enginee…