Active matter encompasses systems whose individual constituents dissipate energy to exert
propelling forces on their environment. These systems exhibit dynamical phenomena with …

Ratchet effects can arise for single or collectively interacting Brownian particles on an
asymmetric substrate when a net dc transport is produced by an externally applied ac …

Active matter agents consume internal energy or extract energy from the environment for
locomotion and force generation. Already, rather generic models, such as ensembles of …

The dynamics of an active walker in a harmonic potential is studied experimentally,
numerically, and theoretically. At odds with usual models of self-propelled particles, we …

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 …

We derive the long-time dynamics of a tracer immersed in a one-dimensional active bath. In
contrast to previous studies, we find that the dam** and noise correlations possess long …

Active biological systems reside far from equilibrium, dissipating heat even in their steady
state, thus requiring an extension of conventional equilibrium thermodynamics and statistical …

Simple ingredients, such as well-defined interactions and couplings for the velocity and
orientation of self-propelled objects, are sufficient to produce complex collective behavior in …

A swarm of simple active particles confined in a flexible scaffold is a promising system to
make mobile and deformable superstructures. These soft structures can perform tasks that …

We study the dynamics of micron-sized particles on a layer of motile cells. This cell carpet
acts as an active bath that propels passive tracer particles via direct mechanical contact. The …