Fig. 1: The reentrant MIPS.
a Phase diagram in the Pe − ϕ plane. The colored background is obtained by the kinetics model with λ = 2.8 × 10−4 and κ = 0.9. fl is the fraction of dense phase. The red and green lines respectively represent the binodal and spinodal curves from simulations. b Dependence of the ensemble-averaged waiting time 〈tw〉 for the nucleation on Pe for active systems at ϕ = 0.35 inside the gray dashed box in a. Curves are the exponential fitting for the simulation data. The inset is the dependence of \({N}_{\max }/N\) with \({N}_{\max }\) the particle number of the largest cluster on t for ten independent ensembles at ϕ = 0.35 and Pe = 900. c Hysteresis at ϕ = 0.35 including the gray dashed box in a. Simulation data are reached from two initial conditions: the final configurations of systems at slightly smaller Pe (red line and symbols) and the ones at slightly larger Pe (blue line and symbols).
