Four-point susceptibility of a glass-forming binary mixture: Brownian dynamics

Abstract

We study the four-point dynamic susceptibility ${\chi }_4(t)$ obtained from Brownian dynamics computer simulations of the Kob-Andersen Lennard-Jones mixture. We compare the results of the simulations with qualitative predictions of the mode-coupling theory. In addition, we test an estimate of the four-point susceptibility recently proposed by Berthier \textit{et al.} [Science, \textbf{310}, 1797 (2005)].

Cited by in corpus (9)

• Theoretical perspective on the glass transition and amorphous materials
• Spontaneous and induced dynamic fluctuations in glass-formers I: General results and dependence on ensemble and dynamics
• Spontaneous and induced dynamic correlations in glass-formers II: Model calculations and comparison to numerical simulations
• Structural relaxation of polydisperse hard spheres: comparison of the mode-coupling theory to a Langevin dynamics simulation
• Lengthscale dependence of dynamic four-point susceptibilities in glass formers
• Multiple length and time scales of dynamic heterogeneities in model glass-forming liquids: A systematic analysis of multi-point and multi-time correlations
• Multi-time density correlation functions in glass-forming liquids: Probing dynamical heterogeneity and its lifetime
• Non-equilibrium dynamics of spin facilitated glass models
• Dynamical heterogeneity in a glass forming ideal gas