“…At large enough q, our results denote that compressed exponential relaxations are associated to a ballisticlike dispersion relation. Such combination has been found in a variety of non-equilibrium systems [5,6,21,22,23,11,24,7], and has been rationalized in terms of a heuristic model, originally developed for colloidal gels [25] [8]. This model entailed that randomly distributed local rearrangement events would lead to stress inhomogeneities that act as dipolar forces, inducing strain fields that would give rise to ultraslow yet continuous ballistic-like motion of the gel strands.…”