Orientation-dependent propulsion of active Brownian spheres: from self-advection to programmable cluster shapes

Stephan Bröker; Jens Bickmann; Michael te Vrugt; Michael E. Cates; Raphael Wittkowski

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arXiv · 2210.13357

Orientation-dependent propulsion of active Brownian spheres: from self-advection to programmable cluster shapes

Stephan Bröker·Jens Bickmann·Michael te Vrugt·Michael E. Cates·Raphael Wittkowski

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Abstract

Applications of active particles require a method for controlling their dynamics. While this is typically achieved via direct interventions, indirect interventions based, e.g., on an orientation-dependent self-propulsion speed of the particles, become increasingly popular. In this work, we investigate systems of interacting active Brownian spheres in two spatial dimensions with orientation-dependent propulsion using analytical modeling and Brownian dynamics simulations. It is found that the orientation-dependence leads to self-advection, circulating currents, and programmable cluster shapes.

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cond-mat.soft cond-mat.mtrl-sci cond-mat.stat-mech nlin.AO physics.comp-ph

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Stephan Bröker, Jens Bickmann, Michael te Vrugt, Michael E. Cates, Raphael Wittkowski. 2022-10-24. Orientation-dependent propulsion of active Brownian spheres: from self-advection to programmable cluster shapes. https://arxiv.org/abs/2210.13357

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