THE ORIGIN OF NONCHAOTIC BEHAVIOR IN IDENTICALLY DRIVEN SYSTEMS

Recently it has been found that identical physical systems with differ ent initial conditions driven by identical random noise behave exactly identically after a long time. It is also suggested that this is an o utcome of finite precision in numerical experiments. Here we show that the origin of the non-chaotic behavior in these examples lies in the structural instability of the attractor of these systems which changes to a stable fixed point for a strong enough drive.