Figure 2

Time dependent MSD from the simulation data for selected channel widths in a log-log plot.

The diffusion exponent is given by the slope of the curves. The colored solid lines serve as a guideline for the different diffusion exponents and are explained in the legend of the graph. Full rectangles, channel width , the system is ordered in three layers. Full triangles, channel width , the system is disordered. In both cases the short and long time diffusion is normal. The intermediate time regime is dominated by the structure inside channel and is single-file like in the ordered case and sub-diffusive in the disordered state. Inset: Time dependent MSD from simulation data (log-log plot) for a channel width , the ideal case of single-file diffusion. The diffusion behavior is separated in two regimes, normal diffusion behavior for short times and single-file diffusion in the long time limit.