289 citations · 928 across the 19 of their papers we have counts for
19 papers
Deciphering the dual chemotaxis strategy of bacteria in porous media
Sönke Beier, Veronika Pfeifer, Agniva Datta +2
Chemotaxis of bacterial swimmers that move in a run-and-turn pattern is well studied in uniform bulk fluid. It is primarily based on modulating the run time in dependence on the sw…
Intermittent Run Motility of Bacteria in Gels Exhibits Power-Law Distributed Dwell Times
Agniva Datta, Sönke Beier, Veronika Pfeifer +2
While bacterial swimming has been well characterized in uniform liquid environments, only little is known about how bacteria propagate through complex environments, such as gel-lik…
The random walk of intermittently self-propelled particles
Agniva Datta, Carsten Beta, Robert Großmann
Motivated by various recent experimental findings, we propose a dynamical model of intermittently self-propelled particles: active particles that recurrently switch between two mod…
Non-Gaussian displacements in active transport on a carpet of motile cells
Robert Großmann, Lara S. Bort, Ted Moldenhawer +3
We study the dynamics of micron-sized particles on a layer of motile cells. This cell carpet acts as an active bath that propels passive tracer particles via direct mechanical cont…
Cargo size limits and forces of cell-driven microtransport
Setareh Sharifi Panah, Robert Großmann, Valentino Lepro +1
The integration of motile cells into biohybrid microrobots offers unique properties such as sensitive responses to external stimuli, resilience, and intrinsic energy supply. Here w…
From single to collective motion of social amoebae: a computational study of interacting cells
Eduardo Moreno, Robert Großmann, Carsten Beta +1
The coupling of the internal mechanisms of cell polarization to cell shape deformations and subsequent cell crawling poses many interdisciplinary scientific challenges. Several mat…
Biohybrid active matter -- the emergent properties of cell-mediated microtransport
Valentino Lepro, Robert Großmann, Oliver Nagel +4
As society paves its way towards device miniaturization and precision medicine, micro-scale actuation and guided transport become increasingly prominent research fields with high i…
A novel approach to chemotaxis: active particles guided by internal clocks
Luis Gómez Nava, Robert Großmann, Marius Hintsche +2
Motivated by the observation of non-exponential run-time distributions of bacterial swimmers, we propose a minimal phenomenological model for taxis of active particles whose motion…
Self-Propelled Rods: Insights and Perspectives for Active Matter
Markus Bär, Robert Großmann, Sebastian Heidenreich +1
A wide range of experimental systems including gliding, swarming and swimming bacteria, in-vitro motility assays as well as shaken granular media are commonly described as self-pro…
A particle-field representation unifies paradigms in active matter
Robert Großmann, Igor S. Aranson, Fernando Peruani
Active matter research focuses on the emergent behavior among interacting self-propelled particles. Unification of seemingly disconnected paradigms -- active phase-separation of re…
Markovian robots: minimal navigation strategies for active particles
Luis Gómez Nava, Robert Großmann, Fernando Peruani
We explore minimal navigation strategies for active particles in complex, dynamical, external fields, introducing a class of autonomous, self-propelled particles which we call Mark…
Mesoscale pattern formation of self-propelled rods with velocity reversal
Robert Großmann, Fernando Peruani, Markus Bär
We study self-propelled particles with velocity reversal interacting by uniaxial (nematic) alignment within a coarse-grained hydrodynamic theory. Combining analytical and numerical…
Diffusion properties of active particles with directional reversal
Robert Großmann, Fernando Peruani, Markus Bär
The diffusion properties of self-propelled particles which move at constant speed and, in addition, reverse their direction of motion repeatedly are investigated. The internal dyna…
Superdiffusion, large-scale synchronization and topological defects
Robert Großmann, Fernando Peruani, Markus Bär
We study an ensemble of random walkers carrying internal noisy phase oscillators which are synchronized among the walkers by local interactions. Due to individual mobility, the int…
Pattern formation in active particle systems due to competing alignment interactions
Robert Großmann, Pawel Romanczuk, Markus Bär +1
Recently, we proposed a self-propelled particle model with competing alignment interactions: nearby particles tend to align their velocities whereas they anti-align their direction…
A geometric approach to self-propelled motion in isotropic and anisotropic environments
Robert Großmann, Fernando Peruani, Markus Bär
We propose a geometric perspective to describe the motion of self-propelled particles moving at constant speed in d dimensions. We exploit the fact that the vector that conveys the…
Vortex arrays and meso-scale turbulence of self-propelled particles
Robert Grossmann, Pawel Romanczuk, Markus Bär +1
Inspired by the Turing mechanism for pattern formation, we propose a simple self-propelled particle model with short-ranged alignment and anti-alignment at larger distances. It is…
Self-propelled particles with selective attraction-repulsion interaction - From microscopic dynamics to coarse-grained theories
Robert Grossmann, Lutz Schimansky-Geier, Pawel Romanczuk
In this work we derive and analyze coarse-grained descriptions of self-propelled particles with selective attraction-repulsion interaction, where individuals may respond differentl…
Active Brownian particles with velocity-alignment and active fluctuations
Robert Grossmann, Lutz Schimansky-Geier, Pawel Romanczuk
We consider a model of active Brownian particles with velocity-alignment in two spatial dimensions with passive and active fluctuations. Hereby, active fluctuations refers to purel…