Event
Collective Dynamics of Active Filaments| Title of the event | Collective Dynamics of Active Filaments |
| Series | LMP Seminar |
| Organizer | Physik lebender Materie |
| Speaker | Dr. Leila Abbaspour |
| Speaker institution | Dept. of Living Matter Physics, MPI for Dynamics and Self-Organization, Göttingen |
| Type of event | Seminar |
| Category | Forschung |
| Registration required | Nein |
| Details | Active matter systems provide fascinating examples of pattern formation and collective motility without counterpart in equilibrium systems. We combine simulations and experiments of Cyanobacteria in quasi-2D confinement. We study the collective motion and self-organization in systems of self-propelled semiflexible filaments, inspired by the gliding motility of filamentous Cyanobacteria. Specifically, we investigate the influence of stochastic direction reversals on the patterns. In this seminar, I will talk about pattern formation and dynamics by modulating three relevant physical parameters, the bending stiffness, the activity, and the reversal rate. In the absence of reversals, our results show rich dynamical behavior including spiral formation and collective motion of aligned clusters of various sizes, depending on the bending stiffness and self-propulsion force. The presence of reversals diminishes spiral formation and reduces the sizes of clusters or suppresses clustering entirely. This homogenizing effect of direction reversals can be understood as reversals providing an additional mechanism to either unwind spirals or to resolve clusters. |
| Date | Start: 22.02.2022, 14:00 Uhr Ende: 22.02.2022 , 15:30 Uhr |
| Location |
Max-Planck-Institut für Dynamik und Selbstorganisation (MPIDS) (Am Faßberg 17) Video conference at www.zoom.us Meeting ID: 997 1155 2453 Passcode: 771001 |
| Contact |
Prof. Dr. Ramin Golestanian golestanian-office@ds.mpg.de |