Hidden velocity ordering in dense suspensions of self-propelled disks

L Caprini, UMB Marconi, C Maggi, M Paoluzzi… - Physical Review …, 2020 - APS
Recent investigations of the phase diagram of spherical, purely repulsive, active particles
established the existence of a transition from a liquidlike to a solidlike phase analogous to …

Correlated escape of active particles across a potential barrier

L Caprini, F Cecconi… - The Journal of Chemical …, 2021 - pubs.aip.org
We study the dynamics of one-dimensional active particles confined in a double-well
potential, focusing on the escape properties of the system, such as the mean escape time …

Ratchet transport of particles in the obstacle lattices with topographical gradients

W Zhu, J Wu, B Ai - Chaos, Solitons & Fractals, 2022 - Elsevier
We study the transport of two types of particles (active particles and active particles with
polar interaction) moving in the obstacle lattices with topographical gradients in the x …

Escape kinetics of self-propelled particles from a circular cavity

T Debnath, P Chaudhury, T Mukherjee… - The Journal of …, 2021 - pubs.aip.org
We numerically investigate the mean exit time of an inertial active Brownian particle from a
circular cavity with single or multiple exit windows. Our simulation results witness distinct …

A comparative study between two models of active cluster crystals

L Caprini, E Hernández-García, C López… - Scientific reports, 2019 - nature.com
We study a system of active particles with soft repulsive interactions that lead to an active
cluster-crystal phase in two dimensions. We use two different modelizations of the active …

Collective behavior of chiral active particles with anisotropic interactions in a confined space

T Lei, C Zhao, R Yan, N Zhao - Soft Matter, 2023 - pubs.rsc.org
Extensive studies so far have indicated that chirality, anisotropic interactions and spatial
confinement play important roles in collective dynamics in active matter systems. However …

Ratchet effect in an asymmetric two-dimensional system of Janus particles

P Kalinay, F Slanina - Physical Review E, 2023 - APS
We consider a disk-like Janus particle self-driven by a force of constant magnitude f, but an
arbitrary direction depending on the stochastic rotation of the disk. The particle diffuses in a …

Hydrodynamics of active particles confined in a periodically tapered channel

A Dhar, PS Burada, GP Sekhar - Physics of Fluids, 2020 - pubs.aip.org
Active particles in diverse circumstances encounter confined channels with asymmetric
bounding walls. In the present work, employing the squirmer model, we analyze the …

Collective effects in confined active Brownian particles

L Caprini, C Maggi… - The Journal of Chemical …, 2021 - pubs.aip.org
We investigate a two-dimensional system of active particles confined to a narrow annular
domain. Despite the absence of explicit interactions among the velocities or the active forces …

Run-and-tumble bacteria slowly approaching the diffusive regime

A Villa-Torrealba, C Chávez-Raby, P de Castro, R Soto - Physical Review E, 2020 - APS
The run-and-tumble (RT) dynamics followed by bacterial swimmers gives rise first to a
ballistic motion due to their persistence and later, through consecutive tumbles, to a diffusive …