TY  - JOUR
A1  - Cherstvy, Andrey G.
A1  - Metzler, Ralf
T1  - Anomalous diffusion in time-fluctuating non-stationary diffusivity landscapes
T2  - Physical chemistry, chemical physics : PCCP ; a journal of European chemical societies
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.
Y1  - 2016
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/9589
SN  - 1463-9084
SN  - 1463-9076
VL  - 18
SP  - 23840
EP  - 23852
PB  - RSC Publ.
CY  - Cambridge
ER  -