The effects of nonadiabatic dust charge variation and ultraviolet irradiation on the modulational instability of dust ion acoustic waves
- Department of Physics, School of Applied Science, University of Science and Technology Beijing, Beijing 100083 (China)
- Department of Physics, Harbin Institute of Technology, Harbin 150001 (China)
The effects of nonadiabatic dust charge fluctuation on the nonlinear propagation of the dust ion acoustic (DIA) waves in the dusty plasma with positively charged dust grains have been investigated. By using the reductive perturbation technique, a three-dimensional modified nonlinear Schroedinger equation (mNLSE) governing the nonlinear envelope DIA waves was derived and the approximate solitary wave solution of the mNLSE was also obtained in the weak effect of nonadiabatic dust charge fluctuation limit, which shows that the amplitude of the DIA solitary wave exponentially decreases with time due to the collisionless dissipation caused by the nonadiabatic dust charge variation. The frequency, instability growth rate, and the critical modulational wave number of the small amplitude modulation are all dependent on photoelectron generated by ultraviolet irradiation and time due to the presence of nonadiabatic dust charge variation. The transverse perturbation plays an important role in the modulational instability region.
- OSTI ID:
- 21532037
- Journal Information:
- Physics of Plasmas, Vol. 17, Issue 11; Other Information: DOI: 10.1063/1.3504223; (c) 2010 American Institute of Physics; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
DUSTS
FLUCTUATIONS
INSTABILITY GROWTH RATES
ION ACOUSTIC WAVES
NONLINEAR PROBLEMS
PLASMA
PLASMA INSTABILITY
SCHROEDINGER EQUATION
SOLITONS
THREE-DIMENSIONAL CALCULATIONS
ULTRAVIOLET RADIATION
WAVE PROPAGATION
DIFFERENTIAL EQUATIONS
ELECTROMAGNETIC RADIATION
EQUATIONS
INSTABILITY
ION WAVES
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA WAVES
QUASI PARTICLES
RADIATIONS
VARIATIONS
WAVE EQUATIONS