Spatial frequency clustering in nonlinear dust-density waves.
Self-excited density waves were studied in a strongly coupled dusty plasma of a radio-frequency discharge under microgravity conditions. The spatiotemporal evolution of the complicated three-dimensional wave field was investigated and analyzed for two different situations. The reconstructed instantaneous phase information of the wave field revealed a partial synchronization within multiple distinct domains. The boundaries of these regions coincide with the locations of topological defects.
Menzel
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KO
Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universiät, Kiel, Germany. menzel@physik.uni-kiel.de
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