EXTREME FINAL-STATE SENSITIVITY IN INHOMOGENEOUS SPATIOTEMPORAL CHAOTIC SYSTEMS

Recently it has been found that spatiotemporal chaotic systems modeled by coupled map lattices with translational symmetry exhibit an extrem e type of final state sensitivity characterized by a near-zero uncerta inty exponent in both phase space and parameter space. A perturbation in initial condition and parameter, no matter how small from the point of view of computation, has a significant probability of altering the system's asymptotic attractor completely. In this paper we demonstrat e that such a final state sensitivity persists for spatiotemporal syst ems without symmetry. This suggests that extreme final state sensitivi ty is a robust dynamical phenomenon in spatiotemporal chaotic systems.