Dynamics of a dust crystal with positive and negative dust

Details Dynamics of a dust crystal with positive and negative dust Dynamics of a dust crystal with positive and negative dust

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..799..538k&link_type=abstract

NEW VISTAS IN DUSTY PLASMAS: Fourth International Conference on the Physics of Dusty Plasmas. AIP Conference Proceedings, Volum

Computer Science

Numerical Analysis

Dusty Plasmas, Crystals, Numerical Analysis, Acoustic Dispersion, Plasma Nonlinear Processes, Dusty Or Complex Plasmas, Plasma Crystals

Scientific paper

A dust crystal consisting of charged dust grains of alternating charge sign (.../+/-/+/-/+/...) and mass is considered. Considering the equations of longitudinal motion, a linear dispersion relation is derived from first principles, and then analyzed. Two modes are obtained, including an acoustic mode and an inverse-dispersive optic-like one. The nonlinear aspects of longitudinal dust grain motion are also briefly addressed, via a Boussineq and Korteweg- de Vries description.

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