Anomalous elasticity and plastic screening in amorphous solids
Amorphous solids appear to react elastically to small external strains, but in contrast to ideal
elastic media, plastic responses abound immediately at any value of the strain. Such plastic …
elastic media, plastic responses abound immediately at any value of the strain. Such plastic …
Inertial active matter with Coulomb friction
Friction is central to the motion of active (self-propelled) objects such as bacteria, animals,
and robots. While in a viscous fluid friction is described by Stokes's law, objects in contact …
and robots. While in a viscous fluid friction is described by Stokes's law, objects in contact …
Dipole screening in pure shear strain protocols of amorphous solids
When amorphous solids are subjected to simple or pure strain, they exhibit elastic increase
in stress, punctuated by plastic events that become denser (in strain) upon increasing the …
in stress, punctuated by plastic events that become denser (in strain) upon increasing the …
Experimental and numerical verification of anomalous screening theory in granular matter
The concept of mechanical screening is widely applied in solid-state systems. Examples
include nucleation of defects in crystalline materials, scars and pleats in curved crystals …
include nucleation of defects in crystalline materials, scars and pleats in curved crystals …
Universal stress correlations in crystalline and amorphous packings
We present a universal characterization of stress correlations in athermal systems, across
crystalline to amorphous packings. Via numerical analysis of static configurations of particles …
crystalline to amorphous packings. Via numerical analysis of static configurations of particles …
Direct measurement of dipoles in anomalous elasticity of amorphous solids
Recent progress in studying the physics of amorphous solids has revealed that mechanical
strains can be strongly screened by the formation of plastic events that are typically …
strains can be strongly screened by the formation of plastic events that are typically …
Anomalous elasticity in classical glass formers
Amorphous solids under mechanical strains are prone to plastic responses. Recent work
showed that in amorphous granular systems these plastic events, that are typically …
showed that in amorphous granular systems these plastic events, that are typically …
Frictional granular matter: Protocol dependence of mechanical properties
Theoretical treatments of frictional granular matter often assume that it is legitimate to invoke
classical elastic theory to describe its coarse-grained mechanical properties. Here, we show …
classical elastic theory to describe its coarse-grained mechanical properties. Here, we show …
Spatial stress correlations in strong colloidal gel systems
Colloidal gel systems exhibit increasingly slow relaxation and ultra-long-ranged spatial
correlations of the dynamics similar to other jammed materials. These cooperative dynamics …
correlations of the dynamics similar to other jammed materials. These cooperative dynamics …
Universal power-law scaling in the packing structure of frictional granular materials
Friction-induced energy dissipation is one of the key factors contributing to the unique
properties of granular materials, such as the preparation history dependence of the packing …
properties of granular materials, such as the preparation history dependence of the packing …