Fluctuation-dissipation theorem in an aging colloidal glass

S. Jabbari-Farouji; D. Mizuno; M. Atakhorrami; F.C. MacKintosh; C.F. Schmidt; E. Eiser; G.H. Wegdam; D. Bonn

doi:10.1103/PhysRevLett.98.108302

Fluctuation-dissipation theorem in an aging colloidal glass

S. Jabbari-Farouji, D. Mizuno, M. Atakhorrami, F.C. MacKintosh, C.F. Schmidt, E. Eiser, G.H. Wegdam, D. Bonn

Soft Matter and Biological Physics

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Abstract

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. © 2007 The American Physical Society.

Original language	English
Article number	108302
Pages (from-to)	108302-1/4
Journal	Physical Review Letters
Volume	98
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.98.108302
Publication status	Published - 2007

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title = "Fluctuation-dissipation theorem in an aging colloidal glass",

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AU - Schmidt, C.F.

AU - Eiser, E.

AU - Wegdam, G.H.

AU - Bonn, D.

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Fluctuation-dissipation theorem in an aging colloidal glass

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