62 citations · 85 across the 4 of their papers we have counts for
8 papers
Chemotaxis of artificial microswimmers in active density waves
Alexander Geiseler, Peter Hänggi, Fabio Marchesoni +2
Living microorganisms are capable of a tactic response to external stimuli by swimming towards or away from the stimulus source; they do so by adapting their tactic signal transduc…
Cooperative surmounting of bottlenecks
D. Hennig, C. Mulhern, L. Schimansky-Geier +2
The physics of activated escape of objects out of a metastable state plays a key role in diverse scientific areas involving chemical kinetics, diffusion and dislocation motion in s…
Extreme events due to localisation of energy
Colm Mulhern, Stephan Bialonski, Holger Kantz
We study a one-dimensional chain of harmonically coupled units in an asymmetric anharmonic soft potential. Due to nonlinear localisation of energy, this system exhibits extreme eve…
Nonlinear response of a linear chain to weak driving
D. Hennig, C. Mulhern, A. D. Burbanks +1
We study the escape of a chain of coupled units over the barrier of a metastable potential. It is demonstrated that a very weak external driving field with suitably chosen frequenc…
The Persistence of Uphill Anomalous Transport in Inhomogeneous Media
Colm Mulhern
For systems out of equilibrium and subjected to a static bias force it can often be expected that particle transport will usually follow the direction of this bias. However, counte…
The coupled dynamics of two particles with different limit sets
Colm Mulhern, Dirk Hennig, Andrew D. Burbanks
We consider a system of two coupled particles evolving in a periodic and spatially symmetric potential under the influence of external driving and damping. The particles are driven…