Ordered and self-disordered dynamics of holes and defects in the one-dimensional complex Ginzburg-Landau equation

We study the dynamics of holes and defects in the 1D complex Ginzburg-Landa u equation in ordered and chaotic cases. Ordered hole-defect dynamics occur s when an unstable hole invades a plane wave state and periodically nucleat es defects from which new holes are born. The results: of a detailed numeri cal study of these periodic states are incorporated into a simple analytic description of isolated "edge" holes. Extending this description, we obtain a minimal model for general hole-defect dynamics. We show that interaction s between the holes and a self-disordered background are essential fur the occurrence of spatiotemporal chaos in hole-defect states.