Fig. 2: Simulated trajectories of our hybrid comb model.
From: Interplay between particle trapping and heterogeneity in anomalous diffusion
a–c These trajectories are obtained by iterating Eq. (23) for 106 steps with three distinct values of the diffusion coefficient exponent η (displayed in the panels). The color code illustrates the progression of time. The case η = 0 corresponds to the original comb model. When η < 0, the diffusion coefficient increases as the walker moves away from the origin (x = 0). For η > 0, the diffusion coefficient decreases with the distance from the origin. Consequently, the space covered by the walker along the backbone is significantly broader for negative values of η compared to positive values. This observation alludes to the fact that diffusion is enhanced as η decreases.
