Solitonic-like interactions of counter-propagating clusters of active particles
| dc.coverage | DOI: 10.1063/5.0104579 | |
| dc.creator | Escaff, Daniel | |
| dc.date | 2023 | |
| dc.date.accessioned | 2025-11-18T19:42:32Z | |
| dc.date.available | 2025-11-18T19:42:32Z | |
| dc.description | <p>This report considers a set of interacting self-propelled particles immersed in a viscous and noisy environment. The explored particle interaction does not distinguish between alignments and anti-alignments of the self-propulsion forces. More specifically, we considered a set of self-propelled apolar aligning attractive particles. Consequently, there is no genuine flocking transition because the system has no global velocity polarization. Instead, another self-organized motion emerges, where the system forms two counter-propagating flocks. This tendency leads to the formation of two counter-propagating clusters for short-range interaction. Depending on the parameters, these clusters interact, exhibiting two of the four classical behaviors of counter-propagating dissipative solitons (which does not imply that a single cluster must be recognized as a soliton). They interpenetrate and continue their movement after colliding or forming a bound state where the clusters remain together. This phenomenon is analyzed using two mean-field strategies: an all-to-all interaction that predicts the formation of the two counter-propagating flocks and a noiseless approximation for cluster-to-cluster interaction, which explains the solitonic-like behaviors. Furthermore, the last approach shows that the bound states are metastables. Both approaches agree with direct numerical simulations of the active-particle ensemble.</p> | eng |
| dc.identifier | https://investigadores.uandes.cl/en/publications/5f5069ed-a60b-40c6-bc65-838f22b27ec4 | |
| dc.identifier.uri | https://repositorio.uandes.cl/handle/uandes/52397 | |
| dc.language | eng | |
| dc.rights | info:eu-repo/semantics/restrictedAccess | |
| dc.source | vol.33 (2023) date: 2023-04-01 nr.4 | |
| dc.subject | Kuramoto models | |
| dc.subject | Soft matter | |
| dc.subject | Phase transitions | |
| dc.subject | Computer simulation | |
| dc.subject | Mathematical modeling | |
| dc.subject | Self assembly | |
| dc.subject | Random walks | |
| dc.subject | Stochastic processes | |
| dc.title | Solitonic-like interactions of counter-propagating clusters of active particles | eng |
| dc.type | Article | eng |
| dc.type | Artículo | spa |