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DY: Fachverband Dynamik und Statistische Physik

DY 10: Posters I

DY 10.41: Poster

Monday, March 14, 2011, 17:00–19:00, P4

Spatial instability in diffusive system with variable delay — •Jian Wang and Günter Radons — Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany

In ubiquitous natural and laboratory situations the action of time delayed signals is a crucial ingredient to understand the dynamical behavior of these systems. A frequently encountered situation is that the length of the delay time changes with time. With the introduction of varying delay, a simple system can exhibit complicated behavior. In this study we investigate spatial diffusive system with variable delay and show that the spatial instability increases with the introduction of varying delay. Lyapunov exponents and dynamic structure factor are calculated. Special space-time structures, such as travelling wave, are investigated in some detail.