Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2003-01-22
Physics
Condensed Matter
Statistical Mechanics
23 pages, latex source,7 figures
Scientific paper
10.1103/PhysRevE.68.026126
We study the vortex dynamics in an evolutive flow. We carry out the statistical analysis of the resulting time series by means of the joint use of a compression and an entropy diffusion method. This approach to complexity makes it possible for us to establish that the time series emerging from the wavelet analysis of the vortex dynamics is a weakly chaotic process driven by a hidden dynamic process. The complexity of the hidden driving process is shown to be located at the border between the stationary and non-stationary state.
Bellazzini Jacopo
Buresti Guido
Grigolini Paolo
Ignaccolo Massimiliano
Menconi Giulia
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