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 …

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 …

[HTML][HTML] The parental active model: A unifying stochastic description of self-propulsion

L Caprini, AR Sprenger, H Löwen… - The Journal of Chemical …, 2022 - pubs.aip.org
We propose a new overarching model for self-propelled particles that flexibly generates a
full family of “descendants.” The general dynamics introduced in this paper, which we …

Entropy production and collective excitations of crystals out of equilibrium: The concept of entropons

L Caprini, U Marini Bettolo Marconi, H Löwen - Physical Review E, 2023 - APS
We study the collective vibrational excitations of crystals under out-of-equilibrium steady
conditions that give rise to entropy production. Their excitation spectrum comprises …

Fluctuation–dissipation relations in active matter systems

L Caprini, A Puglisi, A Sarracino - Symmetry, 2021 - mdpi.com
We investigate the non-equilibrium character of self-propelled particles through the study of
the linear response of the active Ornstein–Uhlenbeck particle (AOUP) model. We express …

Chiral active matter in external potentials

L Caprini, H Löwen, UMB Marconi - Soft Matter, 2023 - pubs.rsc.org
We investigate the interplay between chirality and confinement induced by the presence of
an external potential. For potentials having radial symmetry, the circular character of the …

Active binary mixtures of fast and slow hard spheres

T Kolb, D Klotsa - Soft Matter, 2020 - pubs.rsc.org
We computationally studied the phase behavior and dynamics of binary mixtures of active
particles, where each species had distinct activities leading to distinct velocities, fast and …

Hydrodynamics of simple active liquids: the emergence of velocity correlations

UMB Marconi, L Caprini, A Puglisi - New Journal of Physics, 2021 - iopscience.iop.org
We derive the hydrodynamics for a system of N active, spherical, underdamped particles,
interacting through conservative forces. At the microscopic level, we represent the evolution …

Time-dependent properties of interacting active matter: Dynamical behavior of one-dimensional systems of self-propelled particles

L Caprini, UMB Marconi - Physical Review Research, 2020 - APS
We study an interacting high-density one-dimensional system of self-propelled particles
described by the active Ornstein-Uhlenbeck particle model where, even in the absence of …

Dynamics and escape of active particles in a harmonic trap

D Wexler, N Gov, KØ Rasmussen, G Bel - Physical review research, 2020 - APS
The dynamics of active particles is of interest at many levels and is the focus of theoretical
and experimental research. There have been many attempts to describe the dynamics of …