Achieving designed texture and flows in bulk active nematics using optimal control theory DOI
Saptorshi Ghosh, Aparna Baskaran, Michael F. Hagan

et al.

The Journal of Chemical Physics, Journal Year: 2025, Volume and Issue: 162(13)

Published: April 1, 2025

Being intrinsically nonequilibrium, active materials can potentially perform functions that would be thermodynamically forbidden in passive materials. However, systems have diverse local attractors correspond to distinct dynamical states, many of which exhibit chaotic turbulent-like dynamics and thus cannot work or useful functions. Designing such a system choose specific state is formidable challenge. Motivated by recent advances enabling optogenetic control experimental materials, we describe an optimal theory framework identifies spatiotemporal sequence light-generated activity drives nematic toward prescribed steady state. Active nematics are unstable spontaneous defect proliferation streaming the absence control. We demonstrate compute fields redirect into variety alternative programs This includes dynamically reconfiguring between selecting stabilizing emergent behaviors do not attractors, hence uncontrolled system. Our results provide roadmap leverage optical methods rationally design structure, dynamics, function wide

Language: Английский

Achieving designed texture and flows in bulk active nematics using optimal control theory DOI
Saptorshi Ghosh, Aparna Baskaran, Michael F. Hagan

et al.

The Journal of Chemical Physics, Journal Year: 2025, Volume and Issue: 162(13)

Published: April 1, 2025

Being intrinsically nonequilibrium, active materials can potentially perform functions that would be thermodynamically forbidden in passive materials. However, systems have diverse local attractors correspond to distinct dynamical states, many of which exhibit chaotic turbulent-like dynamics and thus cannot work or useful functions. Designing such a system choose specific state is formidable challenge. Motivated by recent advances enabling optogenetic control experimental materials, we describe an optimal theory framework identifies spatiotemporal sequence light-generated activity drives nematic toward prescribed steady state. Active nematics are unstable spontaneous defect proliferation streaming the absence control. We demonstrate compute fields redirect into variety alternative programs This includes dynamically reconfiguring between selecting stabilizing emergent behaviors do not attractors, hence uncontrolled system. Our results provide roadmap leverage optical methods rationally design structure, dynamics, function wide

Language: Английский

Citations

0