115 citations · 409 across the 12 of their papers we have counts for
12 papers
Jammed solids with pins: Thresholds, Force networks and Elasticity
Andy L. Zhang, Sean A. Ridout, Celia Parts +6
The role of fixed degrees of freedom in soft/granular matter systems has broad applicability and theoretical interest. Here we address questions of the geometrical role that a scaf…
Introduction to molecular dynamics simulations
K. Vollmayr-Lee
We provide an introduction to molecular dynamics simulations in the context of the Kob-Andersen model of a glass. We introduce a complete set of tools for doing and analyzing the r…
Slow and Long-ranged Dynamical Heterogeneities in Dissipative Fluids
Karina E. Avila, Horacio E. Castillo, Katharina Vollmayr-Lee +1
A two-dimensional bidisperse granular fluid is shown to exhibit pronounced long-ranged dynamical heterogeneities as dynamical arrest is approached. Here we focus on the most direct…
Universal Scaling in the Aging of the Strong Glass Former SiO
Katharina Vollmayr-Lee, Christopher H. Gorman, Horacio E. Castillo
We show that the aging dynamics of a strong glass former displays a strikingly simple scaling behavior, connecting the average dynamics with its fluctuations, namely the dynamical…
Strong Dynamical Heterogeneity and Universal Scaling in Driven Granular Fluids
Karina E. Avila, Horacio E. Castillo, Andrea Fiege +2
Large scale simulations of two-dimensional bidisperse granular fluids allow us to determine spatial correlations of slow particles via the four-point structure factor . B…
Temperature-Dependent Defect Dynamics in the Network Glass SiO2
Katharina Vollmayr-Lee, Annette Zippelius
We investigate the long time dynamics of a strong glass former, SiO2, below the glass transition temperature by averaging single particle trajectories over time windows which compr…
Microscopic picture of aging in SiO2
K. Vollmayr-Lee, R. Bjorkquist, L. M. Chambers
We investigate the aging dynamics of amorphous SiO2 via molecular dynamics simulations of a quench from a high temperature T_i to a lower temperature T_f. We obtain a microscopic p…
Self-Organized Criticality Below The Glass Transition
Katharina Vollmayr-Lee, Elizabeth A. Baker
We obtain evidence that the dynamics of glassy systems below the glass transition is characterized by self-organized criticality. Using molecular dynamics simulations of a model gl…
Heterogeneities in the Glassy State
Katharina Vollmayr-Lee, Annette Zippelius
We study heterogeneities in a binary Lennard-Jones system below the glass transition using molecular dynamics simulations. We identify mobile and immobile particles and measure the…
Single Particle Jumps in a Binary Lennard-Jones System Below The Glass Transition
K. Vollmayr-Lee
We study a binary Lennard-Jones system below the glass transition with molecular dynamics simulations. To investigate the dynamics we focus on events ("jumps") where a particle esc…
Dynamical Heterogeneities Below the Glass Transition
Katharina Vollmayr-Lee, Walter Kob, Kurt Binder +1
We present molecular dynamics simulations of a binary Lennard-Jones mixture at temperatures below the kinetic glass transition. The ``mobility'' of a particle is characterized by t…
Using mean field theory to determine the structure of uniform fluids
Katharina Vollmayr-Lee, Kirill Katsov, John D. Weeks
The structure of a uniform simple liquid is related to that of a reference fluid with purely repulsive intermolecular forces in a self-consistently determined external reference fi…