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DY: Fachverband Dynamik und Statistische Physik

DY 31: Anomalous Diffusion

DY 31.4: Vortrag

Donnerstag, 14. März 2013, 15:45–16:00, H48

Distinguishing Between Different Subdiffusive Scenarios. — •Felix Thiel and Igor Sokolov — Institut für Physik der Humboldt-Universität zu Berlin, Deutschland

Subdiffusion can be observed in many theoretical and experimental situations, for instance with proteins diffusing in biological cells or with ion channels moving on the cell membrane. Although one may often be sure, that the process is truly subdiffusive, it is not always clear which physical mechanisms give rise to this behaviour. In particular it is necessary to develop techniques that seperate ergodic and non-ergodic (f.e. ageing) parts of such a process. In this talk, we want to present a quantity, suitable for disorder induced subdiffusion, which is sensitive on the kind of disorder, i.e. structural or energetic disorder. We will present some easy theoretical predictions for this so called fundamental exponent and apply it to some pet models.