Figure 9.

Translational (a) and (c), and rotational (b) and (d) VACFs of the Brownian particle of radius a = 50 nm through a circular vessel of radius R = 2.5 μm obtained using colored noise (a) and (b) and Iwashita's model (c) and (d). The legends are OUP: Ornstein-Uhlenbeck process; MLN: Mittag-Leffler noise for λ = 0.5; IT: Iwashita's thermostat. Solid lines in (a)–(d) and dotted line in (a) are present numerical simulation results. The error bars have been plotted from standard deviations of the decay at particular time instants obtained with 45 different realizations. The values of constants a₀ and b₀ are provided in Table 2.