Fluctuation dissipation relations in stationary states of interacting Brownian particles under shear

Details Fluctuation dissipation relations in stationary states of interacting Brownian particles under shear Fluctuation dissipation relations in stationary states of interacting Brownian particles under shear

2009-03-03

arxiv.org/abs/0903.0558v1

Phys. Rev. Lett 102, 135701 (2009)

Physics

Condensed Matter

Soft Condensed Matter

accepted to Phys. Rev. Lett.

Scientific paper

10.1103/PhysRevLett.102.135701

The fluctuation dissipation theorem (FDT) 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 FDT. During the final shear-driven decay, an asymptotically constant relation connects response and fluctuations, restoring the form of the FDT with, however, a ratio different from the equilibrium one.

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