title: Microrheology of supercooled liquids in terms of a continuous time random walk.
abstract: Molecular dynamics simulations of a glass-forming model system are performed under application of a microrheological perturbation on a tagged particle. The trajectory of that particle is studied in its underlying potential energy landscape. Discretization of the configuration space is achieved via a metabasin analysis. The linear and nonlinear responses of drift and diffusive behavior can be interpreted and analyzed in terms of a continuous time random walk. In this way, the physical origin of linear and nonlinear response can be identified. Critical forces are determined and compared with predictions from literature.
authors.affiliation: Westfälische Wilhelms-Universität Münster, Institut für Physikalische Chemie, Corrensstraße 28/30, 48149 Münster, Germany. c.schroer@uni-muenster.de
authors.forename: Carsten F E
authors.initials: CF
authors.lastname: Schroer
authors.forename: Andreas
authors.initials: A
authors.lastname: Heuer