From motility-induced phase-separation to glassiness in dense active matter

M Paoluzzi, D Levis, I Pagonabarraga - Communications Physics, 2022 - nature.com
Dense active systems are widespread in nature, examples range from bacterial colonies to
biological tissues. Dense clusters of active particles can be obtained by increasing the …

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 …

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 …

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 …

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 …

A perspective on active glassy dynamics in biological systems

S Sadhukhan, S Dey, S Karmakar, SK Nandi - The European Physical …, 2024 - Springer
Dynamics is central to living systems. Many experiments in the last two decades have
revealed glassy dynamics in diverse biological systems, showing a transition between a …

A Brownian cyclic engine operating in a viscoelastic active suspension

CA Guevara-Valadez, R Marathe… - Physica A: Statistical …, 2023 - Elsevier
We investigate a model for a Stirling-like engine consisting of a passive Brownian particle
confined by a harmonic potential and interacting with a suspension of active Brownian …

When an active bath behaves as an equilibrium one

SS Khali, F Peruani, D Chaudhuri - Physical Review E, 2024 - APS
Active scalar baths consisting of active Brownian particles are characterized by a non-
Gaussian velocity distribution, a kinetic temperature, and a diffusion coefficient that scale …

Dynamics of Motility-Induced clusters: coarsening beyond Ostwald ripening

CB Caporusso, LF Cugliandolo, P Digregorio… - Physical Review Letters, 2023 - APS
We study the dynamics of clusters of active Brownian disks generated by motility-induced
phase separation, by applying an algorithm that we devised to track cluster trajectories. We …