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Dust-acoustic shock waves due to strong correlation among arbitrarily charged dust

A. A. Mamun* and R. A. Cairns

  • School of Mathematics and Statistics, University of St. Andrews, North Haugh, St. Andrews, KY16 9SS Scotland, United Kingdom

  • *Permanent address: Department of Physics, Jahangirnagar University, Savar Dhaka-1342, Bangladesh.
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Phys. Rev. E 79, 055401(R) – Published 21 May, 2009

DOI: https://doi.org/10.1103/PhysRevE.79.055401

Abstract

The nonlinear propagation of the dust-acoustic (DA) waves in a strongly coupled dusty plasma containing strongly correlated arbitrarily (positively or negatively) charged dust and weakly correlated Boltzmann electrons and ions has been investigated by employing the generalized hydrodynamic model and the reductive perturbation method. It has been shown that the strong correlation among the charged dust is a source of dissipation and is responsible for the formation of the DA shock waves in such a strongly coupled dusty plasma. It has also been found that the DA shock waves with positive (negative) potential are formed for positively (negatively) charged dust. The basic features of such DA shock waves have been identified. It has been suggested that a laboratory experiment be performed to test the theory presented here.

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Phys. Rev. E 79, 055401(R)– Published 21 May, 2009
  • Received 17 March 2009

© 2009 American Physical Society

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