4 papers
Shear-induced Criticality in Glasses Shares Qualitative Similarities with the Gardner Phase
Norihiro Oyama, Hideyuki Mizuno, Atsushi Ikeda
Although glass phases are found in various soft matter systems ubiquitously, we are still far from a complete understanding of them. The concept of marginal stability predicted by…
Localized and extended dynamical correlation lengths in jammed packings of soft athermal disks under slow shear
Shoichi Takahata, Norihiro Oyama, Kuniyasu Saitoh
Dynamics of jammed packings of soft athermal disks under finite-rate shear are studied by means of molecular dynamics simulations. Particularly, we investigate the spatial structur…
Instantaneous Normal Modes Reveal Structural Signatures for the Herschel-Bulkley Rheology in Sheared Glasses
Norihiro Oyama, Hideyuki Mizuno, Atsushi Ikeda
The Herschel-Bulkley law, a universal constitutive relation, has been empirically known to be applicable to a vast range of soft materials, including sheared glasses. Although the…
Glassy dynamics of a model of bacterial cytoplasm with metabolic activities
Norihiro Oyama, Takeshi Kawasaki, Hideyuki Mizuno +1
Recent experiments have revealed that cytoplasms become glassy when their metabolism is suppressed, while they maintain fluidity in a living state. The mechanism of this active flu…