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Self-Sustained Density Oscillations of Swimming Bacteria Confined in Microchambers
M. Paoluzzi, R. Di Leonardo, L. Angelani
We numerically study the dynamics of run-and-tumble particles confined in two chambers connected by thin channels. Two dominant dynamical behaviors emerge: (i) an oscillatory pumpi…
Generalized energy equipartition in harmonic oscillators driven by active baths
Claudio Maggi, Matteo Paoluzzi, Nicola Pellicciotta +3
We study experimentally and numerically the dynamics of colloidal beads confined by a harmonic potential in a bath of swimming E. coli bacteria. The resulting dynamics is well appr…
Directed transport of active particles over asymmetric energy barriers
N. Koumakis, C. Maggi, R. Di Leonardo
We theoretically and numerically investigate the transport of active colloids to target regions, delimited by asymmetric energy barriers. We show that it is possible to introduce a…
Stochastic Hydrodynamic Synchronization in Rotating Energy Landscapes
Nick Koumakis, Roberto Di Leonardo
Hydrodynamic synchronization provides a general mechanism for the spontaneous emergence of coherent beating states in independently driven mesoscopic oscillators. A complete physic…
Run-and-tumble particles in speckle fields
M. Paoluzzi, R. Di Leonardo, L. Angelani
The random energy landscapes developed by speckle fields can be used to confine and manipulate a large number of micro-particles with a single laser beam. By means of molecular dyn…