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 …

From a microscopic inertial active matter model to the Schrödinger equation

M Te Vrugt, T Frohoff-Hülsmann, E Heifetz… - Nature …, 2023 - nature.com
Active field theories, such as the paradigmatic model known as 'active model B+', are simple
yet very powerful tools for describing phenomena such as motility-induced phase …

Role of rotational inertia for collective phenomena in active matter

L Caprini, RK Gupta, H Löwen - Physical Chemistry Chemical Physics, 2022 - pubs.rsc.org
We investigate the effect of rotational inertia on the collective phenomena of underdamped
active systems and show that the increase of the moment of inertia of each particle favors …

[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 …

Emergent memory from tapping collisions in active granular matter

L Caprini, A Ldov, RK Gupta, H Ellenberg… - Communications …, 2024 - nature.com
In an equilibrium thermal environment, random elastic collisions between background
particles and a tracer establish the picture of Brownian motion fulfilling the celebrated …

Spatial velocity correlations in inertial systems of active Brownian particles

L Caprini, UMB Marconi - Soft Matter, 2021 - pubs.rsc.org
Recently, it has been discovered that systems of active Brownian particles (APB) at high
density organise their velocities into coherent domains showing large spatial structures in …

Time-dependent inertia of self-propelled particles: The Langevin rocket

AR Sprenger, S Jahanshahi, AV Ivlev, H Löwen - Physical Review E, 2021 - APS
Many self-propelled objects are large enough to exhibit inertial effects but still suffer from
environmental fluctuations. The corresponding basic equations of motion are governed by …

Dynamics of active particles with space-dependent swim velocity

L Caprini, UMB Marconi, R Wittmann, H Löwen - Soft Matter, 2022 - pubs.rsc.org
We study the dynamical properties of an active particle subject to a swimming speed
explicitly depending on the particle position. The oscillating spatial profile of the swim …

Dynamics of active particles with translational and rotational inertia

AR Sprenger, L Caprini, H Löwen… - Journal of Physics …, 2023 - iopscience.iop.org
Inertial effects affecting both the translational and rotational dynamics are inherent to a
broad range of active systems at the macroscopic scale. Thus, there is a pivotal need for …

Exact moments and re-entrant transitions in the inertial dynamics of active Brownian particles

M Patel, D Chaudhuri - New Journal of Physics, 2023 - iopscience.iop.org
In this study, we investigate the behavior of free inertial active Brownian particles in the
presence of thermal noise. While finding a closed-form solution for the joint distribution of …