Sunday, May 18

10:00 AM-12:00 PM Ballroom I - Level B

Experiments on Spatio-Temporal Chaos

The minisymposium brings together four experimentalists working on spatio-temporal disorder/chaos (STC) in vastly different systems. This minisymposium will address STC in chemical oscillations, in the aggregation of slime mold amoebae, in optical resonators, and in thermal convection. Spatio-temporal chaos appears to be a generic state occurring in dynamical systems when the system size (aspect-ratio) is increased and spatial degrees of freedom become important. To date, no clear understanding of spatio temporal chaos has emerged. This minisymposium is set up to attract the attention of the "dynamical" community to the problem of spatio-temporal chaos. It will also show that we have well-defined and controllable experimental systems that allow quantitative comparison with theories.

Organizer: Eberhard Bodenschatz
Cornell University

10:00 Transitions from Spiral Waves to Chemical Turbulence in a Reaction-Diffusion System
Qi Ouyang, NEC Research Institute, Inc.
10:30 Competition Between Spiral Waves and Targets in Dictyostelium Discoideum
Raymond E. Goldstein, University of Arizona
11:00 A Primary Bifurcation to Spatio-Temporal Chaos
Michael Dennin, University of California, Irvine
11:30 Spatio-Temporal Chaos in Rayleigh-Benard Convection
Eberhard Bodenschatz, Organizer

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TMP, 4/3/97 TJF, 4/15/97