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| Titel |
Intermittent chaos driven by nonlinear Alfvén waves |
| VerfasserIn |
E. L. Rempel, A. C.-L. Chian, A. J. Preto, S. Stephany |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 11, no. 5/6 ; Nr. 11, no. 5/6 (2004-12-16), S.691-700 |
| Datensatznummer |
250008997
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| Publikation (Nr.) |
 copernicus.org/npg-11-691-2004.pdf |
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| Zusammenfassung |
| We investigate the relevance of chaotic saddles and unstable periodic
orbits at the onset of intermittent chaos in the phase dynamics of
nonlinear Alfvén waves by using the Kuramoto-Sivashinsky (KS) equation as a
model for phase dynamics.
We focus on the role of nonattracting chaotic solutions of the
KS equation, known as chaotic saddles, in the transition from weak chaos to strong chaos via an interior crisis and
show how two of these unstable chaotic saddles can interact to produce the plasma
intermittency observed in the strongly chaotic regimes.
The dynamical systems approach discussed
in this work can lead to a better understanding of the mechanisms responsible
for the phenomena of intermittency in space plasmas. |
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