Dynamical fluctuation effects in glassy colloidal suspensions

Research output: Contribution to journalReview article

Abstract

Fundamental understanding of heterogeneous dynamics in concentrated glassy hard sphere fluids and colloidal suspensions, even at the single particle level, requires major theoretical advances. Recent simulations and confocal microscopy experiments suggest strong nongaussian dynamical fluctuation effects and activated transport emerge well before an apparent kinetic glass transition is reached. New theoretical approaches that can predict the observable signatures of intermittent large amplitude motions and the associated fluctuation phenomena are discussed. Comparisons are made with experiments, computer simulations, and prior theory for average dynamical properties.

Original languageEnglish (US)
Pages (from-to)297-306
Number of pages10
JournalCurrent Opinion in Colloid and Interface Science
Volume12
Issue number6
DOIs
StatePublished - Dec 1 2007

Keywords

  • Activated barrier hopping
  • Caging
  • Colloidal suspensions
  • Dynamic heterogeneity
  • Glassy dynamics
  • Hard spheres
  • Nongaussian fluctuations

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces and Interfaces

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