A5037013451- Micro and Nano Robotics
- Material Dynamics and Properties
- Advanced Thermodynamics and Statistical Mechanics
- Slime Mold and Myxomycetes Research
- Spaceflight effects on biology
- Ecosystem dynamics and resilience
- Biocrusts and Microbial Ecology
Air Liquide (United Kingdom)
2022
Université Claude Bernard Lyon 1
2019-2022
Centre National de la Recherche Scientifique
2019-2022
Institut Lumière Matière
2019-2022
Suranaree University of Technology
2022
We study experimentally the response of a dense sediment Brownian particles to self-propulsion. observe that ergodic supercooled liquid relaxation is monotonically enhanced by activity. By contrast nonergodic glass shows an order magnitude slowdown at low activities with respect passive case, followed fluidization higher activities. Our results theoretical predictions approach transition, summing up shift line. propose nonmonotonicity due competing effects activity: (i) extra energy helps...
We study experimentally a sediment of self-propelled Brownian particles with densities ranging from dilute to ergodic supercooled, nonergodic glass, polycrystal. In compagnon letter, we observe nonmonotonic response activity relaxation the glass state: dramatic slowdown when become weakly self-propelled, followed by speedup at higher activities. Here map supercooled states standard passive glassy physics, provided monotonic shift packing fraction and replacement ambient temperature effective...
Among amorphous states, glass is defined by relaxation times longer than the observation time. This nonergodic nature makes understanding of glassy systems an involved topic, with complex aging effects or responses to further out-of-equilibrium external drivings. In this respect, active glasses made self-propelled particles have recently emerged as a stimulating systems, which broadens and challenges our current considering novel internal degrees freedom. previous experimental studies we...