The vibrational dynamics of solids is described by phonons constituting basic collective
excitations in equilibrium crystals. Here, we consider a non-equilibrium active solid, formed …

We study the shepherding control problem where a group of “herders” need to orchestrate
their collective behavior in order to steer the dynamics of a group of “target” agents towards …

We study the active Potts model with either site occupancy restriction or on-site repulsion to
explore jamming and kinetic arrest in a flocking model. The incorporation of such volume …

The presence of defects in solids formed by active particles breaks their discrete
translational symmetry. As a consequence, many of their properties become space …

Inspired by groups of animals and robots, we study the collective dynamics of large numbers
of active particles, each one trying to get to its own randomly placed target, while avoiding …

We present a geometric design rule for size-controlled clustering of self-propelled particles.
Active particles that tend to rotate under an external force have an intrinsic signed-parameter …