When a system jams, it undergoes a transition from a flowing to a rigid state. Despite this
important change in the dynamics, the internal structure of the system remains disordered in …

In 1989, Sir Sam Edwards made the visionary proposition to treat jammed granular materials
using a volume ensemble of equiprobable jammed states in analogy to thermal equilibrium …

Recent simulations have predicted that near jamming for collections of spherical particles,
there will be a discontinuous increase in the mean contact number Z at a critical volume …

We carry out numerical simulations to study transport behavior about the jamming transition
of a<? format?> model granular material in two dimensions at zero temperature. Shear …

At the core of equilibrium statistical mechanics lies the notion of statistical ensembles: a
collection of microstates, each occurring with a given a priori probability that depends on …

We combine hydrodynamic and field theoretic methods to develop a general theory of
phonons as Goldstone bosons in crystals, glasses, and liquids based on nonaffine …

We study the rheology of amorphous packings of soft, frictionless particles close to jamming.
Implementing a quasistatic simulation method we generate a well-defined ensemble of …

We describe experiments that probe the evolution of shear jammed states, occurring for
packing fractions ϕ S≤ ϕ≤ ϕ J, for frictional granular disks, where above ϕ J there are no …

The physical properties of granular materials have been extensively studied in recent years.
So far, however, there exists no theoretical framework which can explain the observations in …

This work focuses on the evolution of structure and stress for an experimental system of 2D
photoelastic particles that is subjected to multiple cycles of pure shear. Throughout this …