Dynamics of Vibrated Grains

TL;DR

This paper investigates how vibrated grains behave at different densities, revealing gas-like behavior at low densities and glass-like cage formation at higher densities in a quasi-two-dimensional system.

Contribution

It provides a detailed analysis of density distributions and correlation functions across various packing fractions, highlighting the transition from gas-like to glass-like behavior.

Findings

Poissonian density distribution at low densities

Cage formation observed at high densities

Transition from gas to glass-like behavior

Abstract

We study number density distribution and the behavior of time correlation functions in the density of grains for a quasi-two dimensional system of vibrated grains. We study the system at various packing fractions, from low to high. At low densities we recover usual gas like behavior, reflected in a Poissonian statistics for the number density distribution. At higher densities we notice effects like formation of cages of the kind that are seen in glass transition.