Effective temperatures from the fluctuation-dissipation measurements in soft glassy materials

S. Jabbari-Farouji, D. Mizuno, D. Derks, G. H. Wegdam, F.C. Mac Kintosh, C. Schmidt, D. Bonn

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Abstract

We have investigated the validity of the fluctuation-dissipation theorem (FDT) and the applicability of the concept of effective temperature in a number of non-equilibrium soft glassy materials. Using a combination of passive and active microrheology to measure displacement fluctuations and the mechanical response function of probe particles embedded in the materials, we have directly tested the validity of the FDT. Our results show no violation of the FDT over several decades in frequency (1-10
Original languageEnglish
Article number20006
Number of pages7
JournalEurophysics Letters
Volume84
Issue number2
DOIs
Publication statusPublished - 8 Oct 2008

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Effective temperatures from the fluctuation-dissipation measurements in soft glassy materials

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