On the slow dynamics of density fluctuations near the colloidal glass transition

M. Tokuyama, Yayoi Terada, I. Oppenheim

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Slow dynamics of density fluctuations near the colloidal glass transition is discussed from a new viewpoint by numerically solving a nonlinear stochastic diffusion equation for the density fluctuations recently proposed by one of the present authors (MT). The effects of spatial heterogeneities on the dynamics of density fluctuations are then investigated in an equilibrium system. The spatial heterogeneities are generated by the nonlinear density fluctuations, while in a nonequilibrium system they are described by a nonlinear deterministic equation for the average number density. The dynamics of equilibrium density fluctuations is thus shown to be quite different from that of nonequilibrium ones, leading to a logarithmic decay followed by less distinct α- and β-relaxation processes.

Original languageEnglish
Pages (from-to)271-275
Number of pages5
JournalEuropean Physical Journal E
Volume9
Issue number3
DOIs
Publication statusPublished - 2002 Nov 1

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy (miscellaneous)

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