We perform optical-tweezers experiments and mesoscale fluid simulations to study the
effective interactions between two parallel plates immersed in bacterial suspensions. The …

We investigate a model for a Stirling-like engine consisting of a passive Brownian particle
confined by a harmonic potential and interacting with a suspension of active Brownian …

Langevin equations or generalized Langevin equations (GLEs) are popular models for
describing the motion of a particle in a fluid medium in an effective manner. Here we …

Active colloids in a bath of inert particles of smaller size cause anisotropic depletion. The
active hydrodynamics of this nonequilibrium phenomenon, which is fundamentally different …

We investigate two different types of non-Markovian coarse-grained models extracted from a
linear, non-equilibrium microscopic system, featuring a tagged particle coupled to …

Active fluctuations are known to play a significant role in the intracellular transport of passive
objects. However, the effect of viscoelasticity of the environment in shaping such processes …

We study the dynamics of a single trapped probe surrounded by self-propelled active
particles in two dimensions. In the limit of large size separation, we perform an adiabatic …

We study how walls confining active fluids interact with asymmetric passive objects placed in
their bulk. We show that the objects experience nonconservative long-ranged forces …

The properties of an active fluid, for example, a bacterial bath or a collection of microtubules
and molecular motors, can be accessed through the dynamics of passive particle probes …

Mechanical pressure in active matter is generally not a state variable and possesses
abnormal properties, in stark contrast to equilibrium systems. We here show that the …