Fig. 5: Impact of surface tension on the stability of active-DIPS.
From: Activity drives self-assembly of passive soft inclusions in active nematics
a Average pressure gradient \(\langle | \nabla {P}_{{\rm{h}}}| \rangle {R}_{{\rm{d}}}^{3}/{\kappa }_{{\rm{F}}}\) as a function of normalized surface tension σRd/κF, highlighting regimes with active-DIPS (yellow) and melted states (purple). Measurements are taken at steady state after thermalization (t/τ > 25) from an initially clustered configuration. The error bars represent the standard deviation. For the melted states, the error bars are contained within the marker size. The inset shows the time evolution of the pressure gradient for two representative surface tension values. b Phase diagram showing the stability of clustered configurations as a function of surface tension and activity. For large enough values of surface tension, clusters melt, and the system settles into an active turbulent state. The boundary separating active-DIPS and melted states scales approximately as ~A1/2.
