Tuning synchronization of integrate-and-fire oscillators through   mobility
  We analyze the emergence of synchronization in a population of moving integrate-and-fire oscillators. Oscillators, while moving on a plane, interact with their nearest neighbor upon firing time. We discover a non-monotonic dependence of the synchronization time on the velocity of the agents. Moreover, we find that mechanisms that drive synchronization are different for different dynamical regimes. We report the extreme situation where an interplay between the time-scales involved in the dynamical processes completely inhibit the achievement of a coherent state. We also provide estimators for the transitions between the different regimes. 
Luce Prignano, Oleguer Sagarra and Albert D\'iaz-Guilera
nlin.AO cond-mat.stat-mech