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 …

Self-reverting vortices in chiral active matter

L Caprini, B Liebchen, H Löwen - Communications Physics, 2024 - nature.com
There is currently a strong interest in the collective behavior of chiral active particles that can
propel and rotate themselves. In the presence of alignment interactions for many chiral …

Nonequilibrium strongly hyperuniform fluids of circle active particles with large local density fluctuations

QL Lei, MP Ciamarra, R Ni - Science advances, 2019 - science.org
Disordered hyperuniform structures are an exotic state of matter having vanishing long-
wavelength density fluctuations similar to perfect crystals but without long-range order …

Collective motion of active Brownian particles with polar alignment

A Martín-Gómez, D Levis, A Díaz-Guilera… - Soft matter, 2018 - pubs.rsc.org
We present a comprehensive computational study of the collective behavior emerging from
the competition between self-propulsion, excluded volume interactions and velocity …

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 …

Activity induced synchronization: Mutual flocking and chiral self-sorting

D Levis, I Pagonabarraga, B Liebchen - Physical Review Research, 2019 - APS
Synchronization, the temporal coordination of coupled oscillators, allows fireflies to flash in
unison, neurons to fire collectively, and human crowds to fall in step on the London …

[HTML][HTML] Dynamical clustering interrupts motility-induced phase separation in chiral active Brownian particles

Z Ma, R Ni - The Journal of Chemical Physics, 2022 - pubs.aip.org
One of the most intriguing phenomena in active matter has been the gas–liquid-like motility-
induced phase separation (MIPS) observed in repulsive active particles. However …

Arrested phase separation in chiral fluids of colloidal spinners

H Massana-Cid, D Levis, RJH Hernández… - Physical Review …, 2021 - APS
We investigate phase separation in a chiral fluid, made of spinning ferromagnetic colloids
that interact both via hydrodynamic and dipolar forces and collectively organize into …

Velocity alignment promotes motility-induced phase separation

E Sese-Sansa, I Pagonabarraga, D Levis - Europhysics Letters, 2018 - iopscience.iop.org
We study the phase behavior of polar active Brownian particles moving in two-spatial
dimensions and interacting through volume exclusion and velocity alignment. We combine …

Clustering and phase separation of circle swimmers dispersed in a monolayer

GJ Liao, SHL Klapp - Soft matter, 2018 - pubs.rsc.org
We perform Brownian dynamics simulations in two dimensions to study the collective
behavior of circle swimmers, which are driven by both, an (effective) translational and …