Active phase separation: new phenomenology from non-equilibrium physics

ME Cates, C Nardini - arXiv preprint arXiv:2412.02854, 2024 - arxiv.org
In active systems, whose constituents have non-equilibrium dynamics at local level, fluid-
fluid phase separation is widely observed. Examples include the formation of membraneless …

Interface roughening in nonequilibrium phase-separated systems

M Besse, G Fausti, ME Cates, B Delamotte… - Physical Review Letters, 2023 - APS
Interfaces of phase-separated systems roughen in time due to capillary waves. Because of
fluxes in the bulk, their dynamics is nonlocal in real space and is not described by the …

Anomalous flocking in nonpolar granular Brownian vibrators

Y Chen, J Zhang - Nature Communications, 2024 - nature.com
Using Brownian vibrators, we investigated the structures and dynamics of quasi-2d granular
materials, with packing fractions (ϕ) ranging from 0.111 to 0.832. Our observations revealed …

Dynamics of noncohesive confined granular media

N Mujica, R Soto - Recent advances in fluid dynamics with environmental …, 2016 - Springer
Despite the ubiquitousness and technological and scientific importance of granular matter,
our understanding is still very poor compared to molecular fluids and solids. Until today …

Nonvibrating granular model for a glass-forming liquid: Equilibration and aging

C Tapia-Ignacio, J Garcia-Serrano, F Donado - Physical Review E, 2016 - APS
We studied experimentally a model of a glass-forming liquid on the basis of a nonvibrating
magnetic granular system under an unsteady magnetic field. A sudden quenching was …

Transition from a dissipative to a quasi-elastic system of particles with tunable repulsive interactions

S Merminod, M Berhanu, E Falcon - Europhysics Letters, 2014 - iopscience.iop.org
A two-dimensional system of particles with tunable repulsive interactions is experimentally
investigated. Soft ferromagnetic particles are placed on a vibrating rough plate and vertically …

Patterns in magnetic granular media at the crossover from two to three dimensions

E Opsomer, S Merminod, J Schockmel, N Vandewalle… - Physical Review E, 2020 - APS
We perform three-dimensional particle-based simulations of confined, vibrated, and
magnetizable beads to study the effect of cell geometry on pattern selection. For quasi-two …

Clusters and collective motions in Brownian vibrators

Y Chen, J Zhang - arXiv preprint arXiv:2301.06377, 2023 - arxiv.org
Using Brownian vibrators, where single particles can undergo Brownian motion under
vibration, we experimentally investigated self-organized structures and dynamics of quasi …

Anomalous large-scale collective motion in granular Brownian vibrators

Y Chen, J Zhang - arXiv preprint arXiv:2308.04219, 2023 - arxiv.org
Using Brownian vibrators, we conducted a study on the structures and dynamics of quasi-2d
granular materials with packing fractions ($\phi $) ranging from 0.111 to 0.832. Our …

Structure and fragility in a macroscopic model of a glass-forming liquid based on a nonvibrating granular system

C Tapia-Ignacio, RE Moctezuma, F Donado - Physical Review E, 2018 - APS
We studied glass transition in a nonvibrating granular system composed of magnetic steel
beads under an unsteady magnetic field. In this model system, particle concentration and …