Optimal Control of Active Nematics.

  title={Optimal Control of Active Nematics.},
  author={Michael M. Norton and Piyush Grover and Michael F. Hagan and Seth Fraden},
  journal={Physical review letters},
  volume={125 17},
In this work we present the first systematic framework to sculpt active nematic systems, using optimal control theory and a hydrodynamic model of active nematics. We demonstrate the use of two different control fields, (i) applied vorticity and (ii) activity strength, to shape the dynamics of an extensile active nematic that is confined to a disk. In the absence of control inputs, the system exhibits two attractors, clockwise and counterclockwise circulating states characterized by two co… 

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