Fluctuation Dissipation Relations in Stationary States of Interacting Brownian Particles under Shear

Matthias Krüger and Matthias Fuchs
Phys. Rev. Lett. 102, 135701 – Published 31 March 2009
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Abstract

The fluctuation dissipation theorem is studied close to the glass transition in colloidal suspensions under steady shear. Shear breaks detailed balance in the many-particle Smoluchowski equation and gives response functions in the stationary state which are smaller at long times than estimated from the equilibrium fluctuation dissipation theorem. During the final shear-driven decay, an asymptotically constant relation connects response and fluctuations, restoring the form of the fluctuation dissipation theorem with, however, a ratio different from the equilibrium one.

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  • Received 11 July 2008

DOI:https://doi.org/10.1103/PhysRevLett.102.135701

©2009 American Physical Society

Authors & Affiliations

Matthias Krüger and Matthias Fuchs

  • Fachbereich Physik, Universität Konstanz, 78467 Konstanz, Germany

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Issue

Vol. 102, Iss. 13 — 3 April 2009

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