Active systems are driven out of equilibrium by exchanging energy and momentum with their
environment. This endows them with anomalous mechanical properties that are reviewed in …

The collective motion of synthetic active colloids is an emerging area of research in soft
matter physics and is important both as a platform for fundamental studies ranging from non …

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 …

Motility-induced phase separation (MIPS), the phenomenon in which purely repulsive active
particles undergo a liquid-gas phase separation, is among the simplest and most widely …

We explore the emergence of nonequilibrium collective motion in disordered nonthermal
active matter when persistent motion and crowding effects compete, using simulations of a …

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 …

We propose a new overarching model for self-propelled particles that flexibly generates a
full family of “descendants.” The general dynamics introduced in this paper, which we …

In phase-separated active fluids, the Ostwald process can go into reverse, leading to either
microphase separation or bubbly phase separation. We show that the latter is formed of two …

We provide a comprehensive quantitative analysis of localized and extended topological
defects in the steady state of 2D passive and active repulsive Brownian disk systems. We …

We explore the relation between active Brownian particles, a minimal particle-based model
for active matter, and scalar field theories. Both show a liquid-gas-like phase transition …