2 citations · 3 across the 7 of their papers we have counts for
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Linear stability and viscoelastic response in weakly jammed frictional granular systems
Masanari Shimada, Yusuke Hara, Shihori Koyama +2
Granular particles typically feature contact friction, which gives rise to various nontrivial properties of granular materials. In this work, we investigate the linear stability of…
Potential energy landscape picture of zero-temperature avalanche criticality governing dynamics in supercooled liquids
Norihiro Oyama, Yusuke Hara, Takeshi Kawasaki +1
Supercooled liquids are metastable states realized by suppressing crystallization below the melting temperature. While it is well established that their dynamics slow down dramatic…
Zero-temperature Avalanche Criticality Governing Dynamical Heterogeneity in Supercooled Liquids
Norihiro Oyama, Yusuke Hara, Takeshi Kawasaki +1
In supercooled liquids, mesoscale mobile and immobile domains are ubiquitously observed, a phenomenon known as dynamical heterogeneity. Extensive studies have established that the…
Unified study of viscoelasticity and sound damping in hard and soft amorphous solids
Hideyuki Mizuno, Kuniyasu Saitoh, Yusuke Hara +1
Recent research has made significant progress in understanding the non-phonon vibrational states present in amorphous materials. It has been established that their vibrational dens…
A link between anomalous viscous loss and boson peak in soft jammed solids
Yusuke Hara, Ryosuke Matsuoka, Hiroyuki Ebata +2
Soft jammed solids exhibit intriguing mechanical properties, while their linear response is elusive. In particular, foams and emulsions generally reveal anomalous viscous loss with…
Heterogeneity and Low-Frequency Vibrations in Bidisperse Sphere Packings
Yusuke Hara, Hideyuki Mizuno, Atsushi Ikeda
In the jamming transition of monodisperse packings, spatial heterogeneity is irrelevant as the transition is described by mean-field theories. Here, we show that this situation dra…
Particle pinning as a method to manipulate marginal stability
Kumpei Shiraishi, Yusuke Hara
We study the critical behavior of low-frequency vibrations of packings with pinned particles near the jamming point. Soft modes form a plateau in the density of states and its freq…