  We show that driven dislocation assemblies exhibit a set of dynamical phases
remarkably similar to those of driven systems with quenched disorder such as
vortices in superconductors, magnetic domain walls, and charge density wave
materials. These phases include jammed, fluctuating, and dynamically ordered
states, and each produces distinct dislocation patterns as well as specific
features in the noise fluctuations and transport properties. Our work suggests
that many of the results established for systems with quenched disorder
undergoing depinning transitions can be applied to dislocation systems,
providing a new approach for understanding dislocation pattern formation and
dynamics.
