Dresden 2011 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 17: Nonlinear Dynamics I

DY 17.9: Vortrag

Mittwoch, 16. März 2011, 12:45–13:00, ZEU 255

A technique for identifying chaos in many body systems from time series analysis — •Tarek Elsayed, Benjamin Hess, and Boris Fine — Institute of Theoretical Physics, Heidelberg, Germany

We report a new possible signature of chaos that can be easily extracted from a time series produced by physical systems having many degrees of freedom. This technique can be helpful when conventional entropic approaches fail to distinguish between chaotic and nonchaotic time series due to insufficient statistics. We apply this approach to signals generated by integrable and nonintegrable classical spin systems and support our results by Lyapunov and power spectrum spectral analysis.