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Soft repulsive mixtures under gravity: brazil-nut effect, depletion bubbles, boundary layering, nonequilibrium shaking
Tobias Kruppa, Tim Neuhaus, René Messina +1
A binary mixture of particles interacting via long-ranged repulsive forces is studied in gravity by computer simulation and theory. The more repulsive A-particles create a depletio…
Crystallization in a dense suspension of self-propelled particles
Julian Bialké, Thomas Speck, Hartmut Löwen
Using Brownian dynamics computer simulations we show that a two-dimensional suspension of self-propelled ("active") colloidal particles crystallizes at sufficiently high densities.…
The self-propelled Brownian spinning top: dynamics of a biaxial swimmer at low Reynolds numbers
Raphael Wittkowski, Hartmut Löwen
Recently, the Brownian dynamics of self-propelled (active) rod-like particles was explored to model the motion of colloidal microswimmers, catalytically-driven nanorods, and bacter…
Microscopic and macroscopic theories for the dynamics of polar liquid crystals
Raphael Wittkowski, Hartmut Löwen, Helmut R. Brand
We derive and analyze the dynamic equations for polar liquid crystals in two spatial dimensions in the framework of classical dynamical density functional theory (DDFT). Translatio…
Huge broadening of the crystal-fluid interface for sedimenting colloids
Elshad Allahyarov, Hartmut Löwen
For sedimenting colloidal hard spheres, the propagation and broadening of the crystal-fluid interface is studied by Brownian dynamics computer simulations of an initially homogeneo…
Dynamical density functional theory for colloidal particles with arbitrary shape
Raphael Wittkowski, Hartmut Löwen
Starting from the many-particle Smoluchowski equation, we derive dynamical density functional theory for Brownian particles with an arbitrary shape. Both passive and active (self-p…