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Synchronization of dust acoustic waves in a forced Korteweg-de Vries-Burgers model
Ajaz Mir1, Sanat Tiwari1, Abhijit Sen2
1Indian Institute of Technology Jammu, Jammu, Jammu and Kashmir 181221, India.
Abstract:
The synchronization of dust acoustic waves to an external periodic source is studied in the framework of a driven Korteweg-de Vries-Burgers equation that takes into account the appropriate nonlinear and dispersive nature of low-frequency waves in a dusty plasma medium. For a spatiotemporally varying source term, the system is shown to demonstrate harmonic (1:1) and superharmonic (1:2) synchronized states. The existence domains of these states are delineated in the form of Arnold tongue diagrams in the parametric space of the forcing amplitude and forcing frequency and their resemblance to some past experimental results is discussed.
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