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Decoupling of exchange and persistence times in atomistic models of glass formers
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View: Figures


Image of FIG. 1.
FIG. 1.

(Color) Decoupling of exchange and persistence times in the WCA mixture. A local event is defined as a particle moving at a distance larger than . We show results for . (Top) The distributions of exchange times and of persistence times for particle species and for various temperatures . (Bottom) Ratio of the average persistence time to the average exchange time as a function of . The inset shows and for both species as a function of .

Image of FIG. 2.
FIG. 2.

(Color) (Top) Mean-squared displacement for both particle species and as a function of time for various temperatures . (Center) Incoherent scattering function , evaluated at the wave vector of the first peak in the partial structure factors, for both species at the same temperatures as above. (Bottom) Violation of the Stokes-Einstein relation (dashed line) for decreasing temperatures. The inset shows the corresponding relaxation times , defined by the relation , for each species as a function of inverse temperature .


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Decoupling of exchange and persistence times in atomistic models of glass formers