Bulletin of the American Physical Society
2023 APS March Meeting
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session B18: Fluids II
11:30 AM–2:06 PM,
Monday, March 6, 2023
Room: Room 210
Sponsoring
Unit:
DFD
Chair: Muralikrishnan Gopalakrishnan Meena, Oak Ridge National Laboratory
Abstract: B18.00013 : Active Brownian Particles in a disordered motility environment*
1:54 PM–2:06 PM
Presenter:
Davide Breoni
(University of Dusseldorf)
Authors:
Davide Breoni
(University of Dusseldorf)
Hartmut Löwen
(HHU Düsseldorf)
Gianni Jacucci
(Laboratoire Kastler-Brossel (ENS, Sorbonne U., CNRS, Collège de France))
Giorgio Volpe
(University College London)
Sylvain Gigan
(Sorbonne Université / Lab. Kastler-Brossel / CNRS / Ecole Normale Supérieure)
In this work we study the effects of a disordered motility field on an active Brownian particle, both in experiments and simulations. Experimentally, the motility field is generated by applying a speckle light field to a thermophoretic Janus particle, in our case a silica colloid half-coated with a carbon layer, suspended in a critical mixture of water and 2,6-lutidine. We focus on the differences between the effects of respectively a homogeneous and a disordered motility field on the dynamics of the particle.
*EU MSCA-ITN ActiveMatter (Proposal No. 812780)
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