Regensburg 2013 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 17: Soft matter

DY 17.5: Vortrag

Mittwoch, 13. März 2013, 11:00–11:15, H47

Glassy dynamics of Brownian particles close to walls — •Matthias Kohl — Institut für Theoretische Physik II: Weiche Materie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, D-40225 Düsseldorf, Germany

By using Brownian dynamics simulations, we study the slowdown of the dynamics of spherical particles at small temperatures or high densities. In our model system, the particles interact via finite-ranged repulsive interactions. In the limit of small overlaps the dynamics of the soft spheres corresponds to the overdamped dynamics of hard spheres. We determine the relaxation time as a function of temperature and pressure. The dynamics in the vicinity of a wall is compared to the dynamics in bulk.