Theory of ``virtual'' dust voids: the stability of void structures

Details Theory of ``virtual'' dust voids: the stability of void structures Theory of ``virtual'' dust voids: the stability of void structures

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..799..227v&link_type=abstract

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

Physics

Dusty Plasmas, Voids (Solid), Dust, Dusty Or Complex Plasmas, Plasma Crystals

Scientific paper

Experiments demonstrate a variety of dust void structures such as stable or unstable voids, global ``heatbeat'' modes of oscillations of voids, dust voids in the center of the chamber or near its walls. Theory shows that a dust void generally results from the balance of the electrostatic and the plasma (such as the ion drag) forces acting on a dust particle. Here, the stability theory of a ``virtual'' void is developed and its behavior is modeled. It is shown that sequences of stable and unstable void sizes can exist. The dynamics of dust in a plasma follows these stability characteristics leading to various stable and/or unstable dust void structures.

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