期刊
EPL
卷 124, 期 3, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1209/0295-5075/124/30004
关键词
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资金
- European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie (IF) [657517]
- MINECO [FIS2015-67837-P]
- DURSI [2017SGR-884]
- COST Action [MP1305]
- Marie Curie Actions (MSCA) [657517] Funding Source: Marie Curie Actions (MSCA)
We study the phase behavior of polar active Brownian particles moving in two-spatial dimensions and interacting through volume exclusion and velocity alignment. We combine particle-based simulations of the microscopic model with a simple mean-field kinetic model to understand the impact of velocity alignment on the motility-induced phase separation of self-propelled disks. We show that, as the alignment strength is increased, approaching the onset of collective motion from below, orientational correlations grow, rendering the diffusive reorientation dynamics slower. As a consequence, the tendency of particles to aggregate into isotropic clusters is enhanced, favoring the complete de-mixing of the system into a low and high-density phase. Copyright (C) EPLA, 2018
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