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 …

Within a simple model of attractive active Brownian particles, we predict flocking behavior
and challenge the widespread idea that alignment interactions are necessary to observe this …

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 …

In an equilibrium thermal environment, random elastic collisions between background
particles and a tracer establish the picture of Brownian motion fulfilling the celebrated …

We study the motion of active Janus colloids in an optical trap using experiments, theory and
numerical simulations. To achieve isotropic and harmonic confinement, we prototype …

Inertial effects affecting both the translational and rotational dynamics are inherent to a
broad range of active systems at the macroscopic scale. Thus, there is a pivotal need for …

We study the collective vibrational excitations of crystals under out-of-equilibrium steady
conditions that give rise to entropy production. Their excitation spectrum comprises …

Overdamped active Brownian motion of self-propelled particles in a liquid has been fairly
well studied. However, there are a variety of situations in which the overdamped …

Understanding actual transport mechanisms of self-propelled particles (SPPs) in complex
elastic gels—such as in the cell cytoplasm, in in vitro networks of chromatin or of F-actin …

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 …