65 citations · 703 across the 31 of their papers we have counts for
5 papers · 1 filter
Dynamics of active particles with space-dependent swim velocity
Lorenzo Caprini, Umberto Marini Bettolo Marconi, René Wittmann +1
We study the dynamical properties of an active particle subject to a swimming speed explicitly depending on the particle position. The oscillating spatial profile of the swim veloc…
Brownian magneto-gyrator as a tunable microengine
Iman Abdoli, René Wittmann, Joseph Michael Brader +3
A Brownian particle performs gyrating motion around a potential energy minimum when subjected to thermal noises from two different heat baths. Here, we propose a magneto-gyrator ma…
Topology of orientational defects in confined smectic liquid crystals
Paul A. Monderkamp, René Wittmann, Louis B. G. Cortes +3
We propose a general formalism to characterize orientational frustration of smectic liquid crystals in confinement by interpreting the emerging networks of grain boundaries as obje…
Active Ornstein-Uhlenbeck model for self-propelled particles with inertia
G. H. Philipp Nguyen, René Wittmann, Hartmut Löwen
Self-propelled particles, which convert energy into mechanical motion, exhibit inertia if they have a macroscopic size or move inside a gaseous medium, in contrast to micron-sized…
Particle-resolved topological defects of smectic colloidal liquid crystals in extreme confinement
René Wittmann, Louis B. G. Cortes, Hartmut Löwen +1
Confined samples of liquid crystals are characterized by a variety of topological defects and can be exposed to external constraints such as extreme confinements with nontrivial to…