GLASSY BEHAVIOR IN DISORDERED-SYSTEMS WITH NONRELAXATIONAL DYNAMICS

We show that a family of disordered systems with nonrelaxational dynam ics may exhibit ''glassy'' behavior at nonzero temperature, although s uch a behavior appears to be ruled out by a face-value application of mean-field theory. Nevertheless, the roots of this behavior can be und erstood within mean-field theory itself, properly interpreted. Finite systems belonging to this family have a dynamical regime with a self-s imilar pattern of alternating periods of fast motion and trapping.