The effect of dust size distribution on envelope wave packet in magnetized two-temperature-ion dusty plasma

Journal Article · Wed Jul 15 04:00:00 EDT 2009 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3158557· OSTI ID:21277335

Maimai, Lin; Wenshan, Duan ^[1]

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1. Department of Physics, Northwest Normal University, Lanzhou 730070 (China)

The effect of arbitrary dust size distribution on a nonlinear envelope wave packet in a magnetized two-temperature-ion dusty plasma has been studied in this paper. By using the reductive perturbation method, the dispersion relation and a (3+1)-dimensional nonlinear Schroedinger equation (NLSE) have been obtained. It is found that the frequency, the group velocity, and the propagation behavior of the envelope waves have been significantly influenced by different dust size distributions. It is also found that the frequency increases as the total number density of dust particles increases. Moreover, it seems that the frequency for usual dusty plasma is smaller than that of the unusual case. On the other hand, the modulational instability of envelope waves has also been discussed by analyzing the solution of the NLSE. It is shown that the conditions of modulational instability for envelope waves are different for various cases.

• OSTI ID: 21277335
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 7 Vol. 16; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DISPERSION RELATIONS
DISTRIBUTION
DUSTS
NONLINEAR PROBLEMS
PERTURBATION THEORY
PLASMA
PLASMA WAVES
SCHROEDINGER EQUATION
WAVE PACKETS