Aging in short-ranged attractive colloids: A numerical study
arXiv:cond-mat/0311621 · doi:10.1063/1.1695326
Abstract
We study the aging dynamics in a model for dense simple liquids, in which particles interact through a hard-core repulsion complemented by a short-ranged attractive potential, of the kind found in colloidal suspensions. In this system, at large packing fractions, kinetically arrested disordered states can be created both on cooling (attractive glass) and on heating (repulsive glass). The possibility of having two distinct glasses, at the same packing fraction, with two different dynamics offers the unique possibility of comparing -- within the same model -- the differences in aging dynamics. We find that, while the aging dynamics of the repulsive glass is similar to the one observed in atomic and molecular systems, the aging dynamics of the attractive glass shows novel unexpected features.
8 pages, 11 figures, submited to Journal of Chemical Physics
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- Direct tests of single-parameter aging
- Aging in thermal active glasses
- Aging in attraction-driven colloidal glasses
- Distance-as-time in physical aging
- Aging to Equilibrium Dynamics of SiO2
- Glassy behaviour of sticky spheres: What lies beyond experimental timescales?
- Self diffusion of reversibly aggregating spheres
- Classifying the age of a glass based on structural properties: A machine learning approach
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