Figure 2.

Transient distribution. Simulation of ρ(t,x) for t ∈ [0:5] and x ∈ [–1:1]. Setting ρ(0,x) = δ(x–0.5) as the initial condition. The diffusion profile is as in Figure 1 and therefore the distribution obtained near t = 5 is the same as the one at equilibrium described in Figure 1.