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Aspects of the density field in an active nematic
Shradha Mishra, Sanjay Puri, Sriram Ramaswamy
Active nematics are conceptually the simplest orientationally ordered phase of self-driven particles, but have proved to be a perennial source of surprises. We show here through nu…
Silent Flocks
Andrea Cavagna, Irene Giardina, Tomas S. Grigera +4
Experiments find coherent information transfer through biological groups on length and time scales distinctly below those on which asymptotically correct hydrodynamic theories appl…
Flocking at a distance in active granular matter
Nitin Kumar, Harsh Soni, Sriram Ramaswamy +1
The self-organised motion of vast numbers of creatures in a single direction is a spectacular example of emergent order. We recreate this phenomenon using actuated non-living compo…