Modeling active colloids: From active brownian particles to hydrodynamic and chemical fields

A Zöttl, H Stark - Annual Review of Condensed Matter Physics, 2023 - annualreviews.org
Active colloids are self-propelled particles moving in viscous fluids by consuming fuel from
their surroundings. Here, we review the numerical and theoretical modeling of active …

Computational models for active matter

MR Shaebani, A Wysocki, RG Winkler… - Nature Reviews …, 2020 - nature.com
Active matter, which ranges from molecular motors to groups of animals, exists at different
length scales and timescales, and various computational models have been proposed to …

The 2020 motile active matter roadmap

G Gompper, RG Winkler, T Speck… - Journal of Physics …, 2020 - iopscience.iop.org
Activity and autonomous motion are fundamental in living and engineering systems. This
has stimulated the new field of'active matter'in recent years, which focuses on the physical …

Physics of microswimmers—single particle motion and collective behavior: a review

J Elgeti, RG Winkler, G Gompper - Reports on progress in …, 2015 - iopscience.iop.org
Locomotion and transport of microorganisms in fluids is an essential aspect of life. Search
for food, orientation toward light, spreading of off-spring, and the formation of colonies are …

Emergent behavior in active colloids

A Zöttl, H Stark - Journal of Physics: Condensed Matter, 2016 - iopscience.iop.org
Active colloids are microscopic particles, which self-propel through viscous fluids by
converting energy extracted from their environment into directed motion. We first explain …

Motility-induced phase separation

ME Cates, J Tailleur - Annu. Rev. Condens. Matter Phys., 2015 - annualreviews.org
Self-propelled particles include both self-phoretic synthetic colloids and various
microorganisms. By continually consuming energy, they bypass the laws of equilibrium …

Cluster phases and bubbly phase separation in active fluids: reversal of the Ostwald process

E Tjhung, C Nardini, ME Cates - Physical Review X, 2018 - APS
It is known that purely repulsive self-propelled colloids can undergo bulk liquid-vapor phase
separation. In experiments and large-scale simulations, however, more complex steady …

Active brownian particles and run-and-tumble particles: A comparative study

AP Solon, ME Cates, J Tailleur - The European Physical Journal Special …, 2015 - Springer
Abstract Active Brownian particles (ABPs) and Run-and-Tumble particles (RTPs) both self-
propel at fixed speed v along a body-axis u that reorients either through slow angular …

Pressure and phase equilibria in interacting active Brownian spheres

AP Solon, J Stenhammar, R Wittkowski, M Kardar… - Physical review …, 2015 - APS
We derive a microscopic expression for the mechanical pressure P in a system of spherical
active Brownian particles at density ρ. Our exact result relates P, defined as the force per unit …

Emergence of active turbulence in microswimmer suspensions due to active hydrodynamic stress and volume exclusion

K Qi, E Westphal, G Gompper, RG Winkler - Communications Physics, 2022 - nature.com
Microswimmers exhibit an intriguing, highly-dynamic collective motion with large-scale
swirling and streaming patterns, denoted as active turbulence–reminiscent of classical high …