Effects of direction reversals on patterns of active filaments
Active matter systems provide fascinating examples of pattern formation and collective motility without counterpart in equilibrium systems. Here, we employ Brownian dynamics simulations to study the collective motion and self-organization in systems of self-propelled semiflexible filaments, inspired...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2023-03-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.5.013171 |
| _version_ | 1797210546902138880 |
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| author | Leila Abbaspour Ali Malek Stefan Karpitschka Stefan Klumpp |
| author_facet | Leila Abbaspour Ali Malek Stefan Karpitschka Stefan Klumpp |
| author_sort | Leila Abbaspour |
| collection | DOAJ |
| description | Active matter systems provide fascinating examples of pattern formation and collective motility without counterpart in equilibrium systems. Here, we employ Brownian dynamics simulations to 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. We explore 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. |
| first_indexed | 2024-04-24T10:12:19Z |
| format | Article |
| id | doaj.art-ee85772c6b93406e989eaa769934c9da |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:12:19Z |
| publishDate | 2023-03-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-ee85772c6b93406e989eaa769934c9da2024-04-12T17:29:10ZengAmerican Physical SocietyPhysical Review Research2643-15642023-03-015101317110.1103/PhysRevResearch.5.013171Effects of direction reversals on patterns of active filamentsLeila AbbaspourAli MalekStefan KarpitschkaStefan KlumppActive matter systems provide fascinating examples of pattern formation and collective motility without counterpart in equilibrium systems. Here, we employ Brownian dynamics simulations to 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. We explore 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.http://doi.org/10.1103/PhysRevResearch.5.013171 |
| spellingShingle | Leila Abbaspour Ali Malek Stefan Karpitschka Stefan Klumpp Effects of direction reversals on patterns of active filaments Physical Review Research |
| title | Effects of direction reversals on patterns of active filaments |
| title_full | Effects of direction reversals on patterns of active filaments |
| title_fullStr | Effects of direction reversals on patterns of active filaments |
| title_full_unstemmed | Effects of direction reversals on patterns of active filaments |
| title_short | Effects of direction reversals on patterns of active filaments |
| title_sort | effects of direction reversals on patterns of active filaments |
| url | http://doi.org/10.1103/PhysRevResearch.5.013171 |
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