How to derive a predictive field theory for active Brownian particles: a step-by-step tutorial

M Te Vrugt, J Bickmann… - Journal of Physics …, 2023 - iopscience.iop.org
The study of active soft matter has developed into one of the most rapidly growing areas of
physics. Field theories, which can be developed either via phenomenological …

Non-equilibrium dynamic hyperuniform states

Y Lei, R Ni - Journal of Physics: Condensed Matter, 2024 - iopscience.iop.org
Disordered hyperuniform structures are an exotic state of matter having suppressed density
fluctuations at large length-scale similar to perfect crystals and quasicrystals but without any …

Chiral active matter

B Liebchen, D Levis - Europhysics Letters, 2022 - iopscience.iop.org
Chiral active matter comprises particles which can self-propel and self-rotate. Examples
range from sperm cells and bacteria near walls to autophoretic L-shaped colloids. In this …

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 …

Glassy dynamics in chiral fluids

VE Debets, H Löwen, LMC Janssen - Physical Review Letters, 2023 - APS
Chiral active matter is enjoying a rapid increase of interest, spurred by the rich variety of
asymmetries that can be attained in, eg, the shape or self-propulsion mechanism of active …

Active Brownian motion with memory delay induced by a viscoelastic medium

AR Sprenger, C Bair, H Löwen - Physical Review E, 2022 - APS
By now active Brownian motion is a well-established model to describe the motion of
mesoscopic self-propelled particles in a Newtonian fluid. On the basis of the generalized …

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 …

Microscopic theory for hyperuniformity in two-dimensional chiral active fluid

Y Kuroda, K Miyazaki - Journal of Statistical Mechanics: Theory …, 2023 - iopscience.iop.org
Some nonequilibrium systems exhibit anomalous suppression of the large-scale density
fluctuations, so-called hyperuniformity. Recently, hyperuniformity was found numerically in a …

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 …

Phase separation of self-propelled disks with ferromagnetic and nematic alignment

E Sesé-Sansa, D Levis, I Pagonabarraga - Physical Review E, 2021 - APS
We present a comprehensive study of a model system of repulsive self-propelled disks in
two dimensions with ferromagnetic and nematic velocity alignment interactions. We …