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Fractal structures of normal and anomalous diffusion in nonlinear nonhyperbolic dynamical systems

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Korabel,  N.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Klages,  R.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Citation

Korabel, N., & Klages, R. (2002). Fractal structures of normal and anomalous diffusion in nonlinear nonhyperbolic dynamical systems. Physical Review Letters, 89(21): 214102. Retrieved from http://ojps.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000089000021214102000001&idtype=cvips&gifs=yes.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002B-3699-E
Abstract
A paradigmatic nonhyperbolic dynamical system exhibiting deterministic diffusion is the smooth nonlinear climbing sine map. We find that this map generates fractal hierarchies of normal and anomalous diffusive regions as functions of the control parameter. The measure of these self-similar sets is positive, parameter dependent, and in case of normal diffusion it shows a fractal diffusion coefficient. By using a Green-Kubo formula we link these fractal structures to the nonlinear microscopic dynamics in terms of fractal Takagi-like functions.