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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2404.10932 |
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| _version_ | 1866929579945361408 |
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| author | Saavedra, Rodrigo Peruani, Fernando |
| author_facet | Saavedra, Rodrigo Peruani, Fernando |
| contents | We study systems of active particles, whose perception is constrained by a vision cone, that are attracted to other particles and repelled from static obstacles. We report a novel self-trapping mechanism: active particles with non-reciprocal attraction form particle chains, which eventually become closed loops that shrink around one or many obstacles. These closed loops act as effective aggregation centers. Long-lived, self-organized closed loops require to enclose obstacles to exist. Furthermore, we find that closed loops that initially exhibit local polar order, transition to a nematic state as they absorb more particles. The unveiled mechanism corresponds to a pinning behavior that strongly hinders particle diffusion. In short, closed loops dominate the large-scale properties of active systems with non-reciprocal attraction in disordered media. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_10932 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Self-trapping of active particles with non-reciprocal interactions in disordered media Saavedra, Rodrigo Peruani, Fernando Statistical Mechanics We study systems of active particles, whose perception is constrained by a vision cone, that are attracted to other particles and repelled from static obstacles. We report a novel self-trapping mechanism: active particles with non-reciprocal attraction form particle chains, which eventually become closed loops that shrink around one or many obstacles. These closed loops act as effective aggregation centers. Long-lived, self-organized closed loops require to enclose obstacles to exist. Furthermore, we find that closed loops that initially exhibit local polar order, transition to a nematic state as they absorb more particles. The unveiled mechanism corresponds to a pinning behavior that strongly hinders particle diffusion. In short, closed loops dominate the large-scale properties of active systems with non-reciprocal attraction in disordered media. |
| title | Self-trapping of active particles with non-reciprocal interactions in disordered media |
| topic | Statistical Mechanics |
| url | https://arxiv.org/abs/2404.10932 |