TY  - GEN
A1  - Cherstvy, Andrey G.
A1  - Metzler, Ralf
T1  - Anomalous diffusion in time-fluctuating non-stationary diffusivity landscapes
N2  - We investigate the ensemble and time averaged mean squared displacements for particle diffusion in a simple model for disordered media by assuming that the local diffusivity is both fluctuating in time and has a deterministic average growth or decay in time. In this study we compare computer simulations of the stochastic Langevin equation for this random diffusion process with analytical results. We explore the regimes of normal Brownian motion as well as anomalous diffusion in the sub- and superdiffusive regimes. We also consider effects of the inertial term on the particle motion. The investigation of the resulting diffusion is performed for unconfined and confined motion.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 257 
Y1  - 2016
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/9590
UR  - https://nbn-resolving.org/urn:nbn:de:kobv:517-opus4-95901
SP  - 23840
EP  - 23852
ER  -