SYNCHRONIZING SPATIOTEMPORAL CHAOS

We show analytically and numerically that a pail of uni-directionally coupled spatially extended systems can synchronize. For the case of pa rtial differential equations the synchronization can be achieved by ap plying the scalar driving signals only at finite number of space point s. Our approach is very general and can be useful for practical applic ations since the synchronization is achieved via feeding in the respon se system only the information from certain (discrete) spatial locatio ns of the drive system. We also stress some open problems in the field of synchronization of spatiotemporal chaos. (C) 1997 American Institu te of Physics.