180 citations · 873 across the 14 of their papers we have counts for
14 papers
Nutrient transport driven by microbial active carpets
Arnold J. T. M. Mathijssen, Francisca Guzmán-Lastra, Andreas Kaiser +1
We demonstrate that active carpets of bacteria or self-propelled colloids generate coherent flows towards the substrate, and propose that these currents provide efficient pathways…
Focusing of Active Particles in a Converging Flow
Mykhailo Potomkin, Andreas Kaiser, Leonid Berlyand +1
We consider active particles swimming in a convergent fluid flow in a trapezoid nozzle with no-slip walls. We use mathematical modeling to analyze trajectories of these particles i…
Fission and fusion scenarios for magnetic microswimmer clusters
Francisca Guzmán-Lastra, Andreas Kaiser, Hartmut Löwen
Fission and fusion processes of particles clusters occur in many areas of physics and chemistry from subnuclear to astronomic length scales. Here we study fission and fusion of mag…
Aging and rejuvenation of active matter under topological constraints
Liesbeth M. C. Janssen, Andreas Kaiser, Hartmut Löwen
The coupling of active, self-motile particles to topological constraints can give rise to novel non-equilibrium dynamical patterns that lack any passive counterpart. Here we study…
Emerging activity in bilayered dispersions with wake-mediated interactions
Jörg Bartnick, Andreas Kaiser, Hartmut Löwen +1
In a bilayered system of particles with wake-mediated interactions, the action-reaction symmetry for the effective forces between particles of different layers is broken. Under qui…
Active dipole clusters: from helical motion to fission
Andreas Kaiser, Katarina Popowa, Hartmut Löwen
The structure of a finite particle cluster is typically determined by total energy minimization. Here we consider the case where a cluster of soft sphere dipoles becomes active, i.…