ON-OFF INTERMITTENCY IN A COUPLED-MAP LATTICE SYSTEM

On-off intermittency is investigated in a coupled-map lattice system b y applying noise at a single site. The distribution of the laminar pha ses for various sites is calculated numerically. The results show that at large noise intensity the distribution of the laminar phases of th e forced site obeys a nearly exponential decay law with respect to the laminar length and this exponential decay law is gradually replaced b y a power law for the sites away from the forced site. Those sites far from the forced site obey a power law with power exponent -3/2. This critical law is organized by the system itself.