Biomimetic Swarm of Active Particles with Coupled Passive-Active Interactions
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arXiv
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866912064752058368 |
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| author | Nourhani, Amir |
| author_facet | Nourhani, Amir |
| contents | We study the universal behavior of a class of active colloids whose design is inspired by the collective dynamics of natural systems like schools of fish and flocks of birds. These colloids, with off-center repulsive interaction sites, self-organize into polar swarms exhibiting long-range order and directional motion without significant hydrodynamic interactions. Our simulations show that the system transitions from motile perfect crystals to solid-like, liquid-like and gas-like states depending on noise levels, repulsive interaction strength, and particle density. By analyzing swarm polarity and hexatic bond order parameters, we demonstrate that effective volume fractions based on force-range and torque-range interactions explain the system's universal behavior. This work lays a groundwork for biomimetic applications utilizing the cooperative dynamics of active colloids. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_06274 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Biomimetic Swarm of Active Particles with Coupled Passive-Active Interactions Nourhani, Amir Soft Condensed Matter We study the universal behavior of a class of active colloids whose design is inspired by the collective dynamics of natural systems like schools of fish and flocks of birds. These colloids, with off-center repulsive interaction sites, self-organize into polar swarms exhibiting long-range order and directional motion without significant hydrodynamic interactions. Our simulations show that the system transitions from motile perfect crystals to solid-like, liquid-like and gas-like states depending on noise levels, repulsive interaction strength, and particle density. By analyzing swarm polarity and hexatic bond order parameters, we demonstrate that effective volume fractions based on force-range and torque-range interactions explain the system's universal behavior. This work lays a groundwork for biomimetic applications utilizing the cooperative dynamics of active colloids. |
| title | Biomimetic Swarm of Active Particles with Coupled Passive-Active Interactions |
| topic | Soft Condensed Matter |
| url | https://arxiv.org/abs/2410.06274 |