As one increases the concentration of a colloidal suspension, the system exhibits a dramatic
increase in viscosity. Beyond a certain concentration, the system is said to be a colloidal …

Understanding the physics of glass formation remains one of the major unsolved challenges
of condensed matter science. As a material solidifies into a glass, it exhibits a spectacular …

Despite the diversity of materials designated as active matter, virtually all active systems
undergo a form of dynamic arrest when crowding and activity compete, reminiscent of the …

Chiral active matter is enjoying a rapid increase of interest, spurred by the rich variety of
asymmetries that can be attained in, eg, the shape or self-propulsion mechanism of active …

We discuss the dynamics of active Brownian particles (ABPs) in crowded environments
through the mean-squared displacement (MSD) of active and passive tracer particles in both …

The particle motion associated to the α-relaxation in supercooled liquids is still challenging
scientists due to its difficulty to be probed experimentally. By combining synchrotron …

Dense active matter is gaining widespread interest due to its remarkable similarity with
conventional glass-forming materials. However, active matter is inherently out of equilibrium …

The mode-coupling theory of the glass transition (MCT) has been at the forefront of
fundamental glass research for decades, yet the theory's underlying approximations remain …

Dense or glassy active matter, as a result of its remarkable resemblance to passive glass-
forming materials, is enjoying increasing scientific interest. To better grasp the subtle effect …

The transition from a liquid to a glass remains one of the most poorly understood
phenomena in condensed matter physics, and still no fully microscopic theory exists that can …