Inertial self-propelled particles in anisotropic environments
arXiv:2309.04942 · doi:10.1038/s42005-023-01396-6
Abstract
Self-propelled particles in anisotropic environments can exhibit a motility that depends on their orientation. This dependence is relevant for a plethora of living organisms but difficult to study in controlled environments. Here, we present a macroscopic system of self-propelled vibrated granular particles on a striated substrate that displays orientation-dependent motility. An extension of the active Brownian motion model involving orientation-dependent motility and inertial effects reproduces and explains our experimental observations. The model can be applied to general -fold symmetric anisotropy and can be helpful for predictive optimization of the dynamics of active matter in complex environments.
arXiv comment14 pages, 9 figures, 1 table
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