Fig. 5.

Equilibrium probability density of the (a) and (c) translational and (b) and (d) rotational velocities of the neutrally buoyant nanocarrier (a = 250 nm) trapped in a harmonic potential in a Newtonian fluid for bond constant k = 0.1 N/m (a) and (b) and k = 1.0 N/m (c) and (d). The nondimensionalized characteristic memory times are ${\tau }_1/{\tau }_{\nu }=0.12$ and ${\tau }_2/{\tau }_{\nu }=0.088$. The distributions agree within 6% error (see dotted line) with that of the analytical Maxwell–Boltzmann distribution.