Fluctuation-dissipation theorem in an aging colloidal glass.

Published

Journal Article

We provide a direct experimental test of the fluctuation-dissipation theorem (FDT) in an aging colloidal glass. The use of combined active and passive microrheology allows us to independently measure both the correlation and response functions in this nonequilibrium situation. Contrary to previous reports, we find no deviations from the FDT over several decades in frequency (1 Hz-10 kHz) and for all aging times. In addition, we find two distinct viscoelastic contributions in the aging glass, including a nearly elastic response at low frequencies that grows during aging.

Full Text

Duke Authors

Cited Authors

  • Jabbari-Farouji, S; Mizuno, D; Atakhorrami, M; MacKintosh, FC; Schmidt, CF; Eiser, E; Wegdam, GH; Bonn, D

Published Date

  • March 9, 2007

Published In

Volume / Issue

  • 98 / 10

Start / End Page

  • 108302 -

PubMed ID

  • 17358575

Pubmed Central ID

  • 17358575

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.98.108302

Language

  • eng