EFFECTS OF ADDITIVE NOISE ON ON-OFF INTERMITTENCY

On-off intermittency is an aperiodic switching between static, or lami nar, behavior and bursts of oscillations. It has been recently investi gated in a class of one-dimensional maps that are multiplicatively cou pled to either random or chaotic signals. The addition of noise to the system results in a fundamental change in the nature of the intermitt ency. The critical onset parameter changes discontinuously, and the di stribution of the laminar phases is modified. These contrasts are exam ined in terms of random walks.