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 …

Active matter under control: Insights from response theory

LK Davis, K Proesmans, É Fodor - Physical Review X, 2024 - APS
Active constituents burn fuel to sustain individual motion, giving rise to collective effects that
are not seen in systems at thermal equilibrium, such as phase separation with purely …

Active refrigerators powered by inertia

L Hecht, S Mandal, H Löwen, B Liebchen - Physical Review Letters, 2022 - APS
We present the operational principle for a refrigerator that uses inertial effects in active
Brownian particles to locally reduce their (kinetic) temperature by 2 orders of magnitude …

Learning nonequilibrium control forces to characterize dynamical phase transitions

J Yan, H Touchette, GM Rotskoff - Physical Review E, 2022 - APS
Sampling the collective, dynamical fluctuations that lead to nonequilibrium pattern formation
requires probing rare regions of trajectory space. Recent approaches to this problem, based …

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 …

Nonequilibrium fluctuations and nonlinear response of an active bath

H Seyforth, M Gomez, WB Rogers, JL Ross… - Physical review …, 2022 - APS
We analyze the dynamics of a passive colloidal probe immersed in an active bath using an
optical trap to study three physical processes:(1) the nonequilibrium fluctuations transferred …

Critical active dynamics is captured by a colored-noise driven field theory

C Maggi, N Gnan, M Paoluzzi, E Zaccarelli… - Communications …, 2022 - nature.com
Active matter may sometimes behave almost indistinguishably from equilibrium matter. This
is particularly evident for some particle-based models and active field-theories close to a …

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 …

Statistical behavior of nonequilibrium and living biological systems subjected to active and thermal fluctuations

A Ghosh, AJ Spakowitz - Physical Review E, 2022 - APS
We present a path-integral formulation of the motion of a particle subjected to fluctuating
active and thermal forces. This general framework predicts the statistical behavior …

Dynamical fluctuations of a tracer coupled to active and passive particles

I Santra - Journal of Physics: Complexity, 2023 - iopscience.iop.org
We study the induced dynamics of an inertial tracer particle elastically coupled to passive or
active Brownian particles. We integrate out the environment degrees of freedom to obtain …