Abstract:

Active fluids are inherently out of equilibrium fluid systems that are
driven at the scale of the individual units. Examples include bacterial
colonies, the cytoskeleton of a cell, tissues and synthetic systems such as
diffusophoretic janus colloids. In this talk I will discuss simple
theoretical models for active fluids and illustrate mechanisms at play that
lead to emergent structures in active fluids such as athermal phase
separation, accumulation at boundaries and propagating density waves.