Fig. 2

Plot of the variation of mean squared displacement and corresponding local exponent of passive tracer particle (top row) and self-propelled tracer particle (bottom row) with packing fraction (\(\phi\)) of the system. (a,b) is at attraction strength (\(\varepsilon _a = 0, 9 k_BT\)) respectively, and (c,d) is the corresponding local exponent. (e,f) shows the variation of MSD, and (g,h) show the variation of the local exponent with packing fraction at propulsion \(Pe=1, 10\) at a fixed adhesion strength (\(\varepsilon _a = 9 k_BT\)), respectively. Here, the parameters used are in non-dimensional LJ units, the length and energy measured in terms of \(\sigma\) and \(k_B T\) respectively.