1. Nonlinear Phenomena and Self-Organization in Dusty Plasmas.
- Author
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Arp, O., Menzel, K. O., Caliebe, D., Bockwoldt, T., and Piel, A.
- Subjects
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DUSTY plasmas , *MOLECULAR dynamics , *PLASMA waves , *PLASMA density , *NONLINEAR oscillators , *THEORY of wave motion , *REDUCED gravity environments - Abstract
Experiments with extended three-dimensional dusty plasmas under microgravity conditions were performed to study the complex wave pattern of self-excited dust-density waves and its interaction with the plasma. The simultaneous observation of the dust-density fluctuations and the plasma glow revealed that the observed wave phenomenon affects the plasma in the complete discharge. In particular, our investigations suggest, that self-excited dust-density waves are the product of a self-organized system consisting of the dust cloud, the plasma, and the external circuit. The complex wave pattern is a consequence of partial synchronization of neighboring regions inside the dust cloud and can be modeled by a system of coupled nonlinear oscillators. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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