We show how a quasi-periodic mean field theory may be used to understand th
e chaotic dynamics and geometry of globally coupled complex Ginzburg-Landau
equations. The Poincare map of the mean field equations appears to have sa
ddlenode-homoclinic bifurcations leading to chaotic motion, and the attract
or has the characteristic rho shape identified by numerical experiments on
the full equations. (C) 1999 Published by Elsevier Science B.V.