Sunday, May 23

Dynamics of the Complex Ginzburg-Landau Equation: Experiment and Theory

10:00 AM-12:00 PM
Room: Maybird

The Complex Ginzburg-Landau (CGL) equation and its variants describe a wide variety of physical phenomena. The rich dynamics coupled with the relative simplicity of the equations create a fertile landscape for studying the dynamics of nonlinear PDEs and the physical systems they describe in this minisymposium. Experimentalists (R.Ecke, M.Dennin) will discuss the determination of CGL coefficients and evidence for periodic and chaotic behavior in two fluid systems. Theorists (H.Riecke, D.Egolf) will describe behavioral transitions, the role of topological defects, and Langevin equation descriptions of long-wavelength behavior in spatiotemporally chaotic CGL equations.

Organizers: David A. Egolf
Los Alamos National Laboratory

10:00-10:25 Transition from Ordered to Disordered Defect Chaos
Hermann Riecke, Northwestern University; and Glen D. Granzow, Idaho State University
10:30-10:55 Spatiotemporal Chaos in Electroconvection: An Application of Coupled CGL Equations
Michael Dennin, University of California, Irvine
11:00-11:25 The Complex Ginzburg-Landau Equation: Connection to Physical Experiment
Robert E. Ecke, Los Alamos National Laboratory
11:30-11:55 Long Wavelength Behavior in the 1D Complex Ginzburg-Landau Equation
David A. Egolf, Organizer

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MMD, 2/9/99
LMH, 1/7/99; tjf, 2/1/99