Low-Frequency Responses and Wave Dispersion in Dusty Plasmas

Details Low-Frequency Responses and Wave Dispersion in Dusty Plasmas Low-Frequency Responses and Wave Dispersion in Dusty Plasmas

Oct 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001phrvl..87r5003t&link_type=abstract

Physical Review Letters, vol. 87, Issue 18, id. 185003

Physics

13

Scientific paper

The self-consistent dusty-plasma response found in the kinetic theory [V. N. Tsytovich and U. de Angelis, Phys. Plasmas 6, 1093 (1999)] is generalized to include collisions of all species with neutrals, a situation often important in the experiments, and used to derive a new dispersion relation for low-frequency waves in dusty plasmas. An estimate of the differences with previous results is given for the particular case of dust-acoustic waves without the effects of collisions with neutrals: the present theory reproduces the result of Rao, Shukla, and Yu [Planet. Space Sci. 38, 543 (1990)] only for low dust density and small wavelengths, but strong deviations occur at larger wavelengths and dust densities.

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