Effects of polarization force and effective dust temperature on dust-acoustic solitary and shock waves in a strongly coupled dusty plasma

Journal Article · Sun Aug 15 04:00:00 EDT 2010 · Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics (Print)

DOI:https://doi.org/10.1103/PHYSREVE.82.026405· OSTI ID:21464490

Mamun, A A; Ashrafi, K S; Shukla, P K ^[1]

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1. Department of Physics, Jahangirnagar University, Savar, Dhaka 1342 (Bangladesh)

A strongly coupled dusty plasma containing strongly correlated negatively charged dust grains and weakly correlated (Maxwellian) electrons and ions has been considered. The effects of polarization force (which arises due to the interaction between thermal ions and highly negatively charged dust grains) and effective dust temperature (which arises from the electrostatic interactions among highly negatively charged dust and from the dust thermal pressure) on the dust-acoustic (DA) solitary and shock waves propagating in such a strongly coupled dusty plasma are taken into account. The DA solitary and shock waves are found to exist with negative potential only. It has been shown that the strong correlation among the charged dust grains is a source of dissipation and is responsible for the formation of the DA shock waves. It has also been shown that the effects of polarization force and effective dust-temperature significantly modify the basic features (e.g., amplitude, width, and speed) of the DA solitary and shock waves. It has been suggested that a laboratory experiment be performed to test the theory presented in this work.

• OSTI ID: 21464490
• Journal Information: Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics (Print), Journal Name: Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics (Print) Journal Issue: 2 Vol. 82; ISSN 1539-3755
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AMPLITUDES
CHARGED PARTICLES
CORRELATIONS
DUSTS
ELECTRIC POTENTIAL
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
INTERACTIONS
IONS
LEPTONS
PARTICLE INTERACTIONS
PLASMA
PLASMA POTENTIAL
PLASMA WAVES
POLARIZATION
SHOCK WAVES