Fluctuation-dissipation theorem in an aging colloidal glass.

Journal Article (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.

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Duke Authors

Schmidt, Christoph F.

Cited Authors

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

Published Date

March 2007

Published In

Physical Review Letters

Volume / Issue

98 / 10

Start / End Page

108302 -

PubMed 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

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