Soutenance de Romane Braun
Order, coherence, and disorder-induced waves in self-organizing micromotor networks
| When |
Dec 12, 2025
from 02:00 to 04:00 |
|---|---|
| Where | Salle Condorcet |
| Attendees |
Romane Braun |
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In this thesis, we studied the emergent collective behaviors of metamachines composed of hundreds of interacting rotary micromotors. We demonstrate that these metamachines are capable of self-organizing their dynamics through purely local interactions between motors, without any preprogrammed instructions. First, we show that frictional interactions lead to the self-organization of rotation directions, giving rise to an antiferromagnetic order. In this ordered state, dipolar interactions spatially structure the phases, allowing the metamachine to reach a high level of coherence. Finally, we show that disorder in the motors’ precession frequencies disrupts this coherence, inducing the emergence of metachronal waves within the system.