Out-of-equilibrium relaxation of a time-dependent effective temperature

Details Out-of-equilibrium relaxation of a time-dependent effective temperature Out-of-equilibrium relaxation of a time-dependent effective temperature

2003-07-09

arxiv.org/abs/cond-mat/0307216v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

Scientific paper

Constitutive equations are proposed for the relaxation of a glassy material in contact with a thermal reservoir. The dynamics of a single state variable, identified as an effective temperature accounts for the emergence of glassy behavior at low bath temperature. Memory effect in cooling/reheating experiments are discussed along with several aspects of the response to shear: aging of the response to step strains, response to oscillatory forcing, and steady rheology.

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