Supplementary Materials

Emergence of coexisting ordered states in active matter systems

L. Huber, R. Suzuki, T. Krüger, E. Frey, A. R. Bausch

Materials/Methods, Supplementary Text, Tables, Figures, and/or References

Download Supplement
  • Materials and Methods
  • Figs. S1 to S7
  • Table S1
  • Captions for Movie S1 to S9
  • References

Images, Video, and Other Media

Movie S1
Large network of nematic lanes.
In this movie actin filaments form nematic high-density structures which constitute branches of a large network, surrounded by disordered regions. This movie is associated with figure 2B and has dimensions 605 μm times 461μm. Visible filaments are labelled with a GFP tracer and represent a fraction of 1:60 of all filaments.
Movie S2
Close-up of a nematic lane.
This movie shows the dynamics of single actin filaments, which are exchanged between nematic lanes and the disordered environment. Within a lane, reversal of filament orientations occurs. The movie is associated with figure 2D and has dimensions 212 μm times 161 μm (labelling ratio 1:60).
Movie S3
Nematic lanes merging.
Movie of close-by nematic lanes that merge and form a new branch, indicated by white arrows. This happens on the time scale of minutes. The movie dimensions are 328 μm times 246 μm (labelling ratio 1:30).
Movie S4
Nematic lanes shrinking.
In this movie, nematic lanes indicated by white arrows become depleted on the time scale of minutes. The movie dimensions are 295 μm times 222 μm (labelling ratio 1:50).
Movie S5
Simulation of polar density waves.
This movie (associated with figure 3C) shows a large system that produces polar density waves which coarsen over time. Left panel: density field. Upper right panel: local nematic order. Lower right panel: local polar order. Parameters: α = 3, ϕp = 2.1°, box size 650.2L (periodic boundaries, random initial conditions), ρ0 = 1.29/L2, simulation time 0-3175.
Movie S6
Simulation of nematic high-density lanes.
This movie (associated with figure 3D) shows the evolution of a large system, forming a network of nematic lanes. Left panel: density field. Upper right panel: local nematic order. Lower right panel: local polar order. Parameters: α = 6.25, ϕp = 2.1°, box size 650.2L (periodic boundaries, random initial conditions), ρ0 = 1.29/L2, simulation time 0-3175.
Movie S7
Simulation with simultaneously emerging polar and nematic structures.
This movie shows the emergence of both nematic and polar structures, which interact and coarsen over time. Left panel: density field. Upper right panel: local nematic order. Lower right panel: local polar order. Parameters: α =4.25, ϕp =2.1°, box size 650.2L (periodic boundaries, random initial conditions), ρ0 = 1.29/L2, simulation time 0-3175.
Movie S8
Coexisting polar and nematic structures.
Polar clusters are embedded between nematic lanes, which get spatially rearranged by interacting with the clusters. The movie has dimensions 605 μm times 461μm and is associated with figure 4D (labelling ratio 1:30).
Movie S9
Filament exchange processes between structures of different symmetry.
This movie shows exchange processes between polar and nematic structures within a single experiment in the coexistence regime. Left panel: polar clusters “eat up” nematic lanes by crossing them. Right panel: polar cluster “leaves” a nematic lane. The movie is associated with figures S6A,B (labelling ratio 1:30).