Time irreversibility in active matter, from micro to macro

J O'Byrne, Y Kafri, J Tailleur, F van Wijland - Nature Reviews Physics, 2022 - nature.com
Active matter encompasses systems whose individual constituents dissipate energy to exert
propelling forces on their environment. These systems exhibit dynamical phenomena with …

[HTML][HTML] Inertial effects of self-propelled particles: From active Brownian to active Langevin motion

H Löwen - The Journal of chemical physics, 2020 - pubs.aip.org
Active particles that are self-propelled by converting energy into mechanical motion
represent an expanding research realm in physics and chemistry. For micrometer-sized …

Selective and collective actuation in active solids

P Baconnier, D Shohat, CH López, C Coulais… - Nature Physics, 2022 - nature.com
Active solids consist of elastically coupled out-of-equilibrium units performing work,,,,,,,,,,,–.
They are central to autonomous processes, such as locomotion, self-oscillations and …

Run-and-tumble particle in one-dimensional confining potentials: Steady-state, relaxation, and first-passage properties

A Dhar, A Kundu, SN Majumdar, S Sabhapandit… - Physical Review E, 2019 - APS
We study the dynamics of a one-dimensional run-and-tumble particle subjected to confining
potentials of the type V (x)= α| x| p, with p> 0. The noise that drives the particle dynamics is …

Inertial self-propelled particles

L Caprini, U Marini Bettolo Marconi - The Journal of Chemical Physics, 2021 - pubs.aip.org
We study how inertia affects the behavior of self-propelled particles moving through a
viscous solvent by employing the underdamped version of the active Ornstein–Uhlenbeck …

Analytic solution of an active Brownian particle in a harmonic well

M Caraglio, T Franosch - Physical Review Letters, 2022 - APS
We provide an analytical solution for the time-dependent Fokker-Planck equation for a two-
dimensional active Brownian particle trapped in an isotropic harmonic potential. Using the …

Exploiting compositional disorder in collectives of light-driven circle walkers

F Siebers, A Jayaram, P Blümler, T Speck - Science Advances, 2023 - science.org
Emergent behavior in collectives of “robotic” units with limited capabilities that is robust and
programmable is a promising route to perform tasks on the micro and nanoscale that are …

Exact position distribution of a harmonically confined run-and-tumble particle in two dimensions

NR Smith, P Le Doussal, SN Majumdar, G Schehr - Physical Review E, 2022 - APS
We consider an overdamped run-and-tumble particle in two dimensions, with self-propulsion
in an orientation that stochastically rotates by 90∘ at a constant rate, clockwise or …

Active Ornstein–Uhlenbeck model for self-propelled particles with inertia

GHP Nguyen, R Wittmann… - Journal of Physics …, 2021 - iopscience.iop.org
Self-propelled particles, which convert energy into mechanical motion, exhibit inertia if they
have a macroscopic size or move inside a gaseous medium, in contrast to micron-sized …

Morphological computation and decentralized learning in a swarm of sterically interacting robots

MY Ben Zion, J Fersula, N Bredeche, O Dauchot - Science Robotics, 2023 - science.org
Whereas naturally occurring swarms thrive when crowded, physical interactions in robotic
swarms are either avoided or carefully controlled, thus limiting their operational density …