Spontaneous Micro Flocking of Active Inertial Particles without Alignment Interaction
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866917584059760640 |
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| author | Paul, Subhajit Majumder, Suman Janke, Wolfhard |
| author_facet | Paul, Subhajit Majumder, Suman Janke, Wolfhard |
| contents | Observing spontaneous velocity ordering or flocking during motility induced phase separation (MIPS) in a system of spherical active Brownian particles without alignment interaction is challenging. We take up this problem by performing simulations of spherical active inertial particles with purely repulsive potential in presence of thermal noise and absence of any explicit alignment interaction. Our results not only show the presence of MIPS, but also reveal a micro-flocking transition. We characterize this transition in terms of a velocity order parameter as well as a characteristic length scale derived from the spatial correlation of the velocities. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2402_04397 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Spontaneous Micro Flocking of Active Inertial Particles without Alignment Interaction Paul, Subhajit Majumder, Suman Janke, Wolfhard Soft Condensed Matter Observing spontaneous velocity ordering or flocking during motility induced phase separation (MIPS) in a system of spherical active Brownian particles without alignment interaction is challenging. We take up this problem by performing simulations of spherical active inertial particles with purely repulsive potential in presence of thermal noise and absence of any explicit alignment interaction. Our results not only show the presence of MIPS, but also reveal a micro-flocking transition. We characterize this transition in terms of a velocity order parameter as well as a characteristic length scale derived from the spatial correlation of the velocities. |
| title | Spontaneous Micro Flocking of Active Inertial Particles without Alignment Interaction |
| topic | Soft Condensed Matter |
| url | https://arxiv.org/abs/2402.04397 |