Figure 5
From: Experimental evolution of active Brownian grains driven by quantum effects in superfluid helium
Mean-square displacements of grains in the structure under the action of laser illumination of various power densities \(\dot{{Q}_{p}}\): (a) single grain at \(\dot{{Q}_{p}}\) = 0.3 W/cm2 (THe = 1.72 K); (b) single grain at \(\dot{{Q}_{p}}\) = 1.9 W/cm2 (THe = 1.87 K) and (c) grains within chain at \(\dot{{Q}_{p}}\) = 1.9 W/cm2 (THe = 1.87 K). The inset shows the characteristic trajectories of grains.
