Dust-Charge Variation Effects on Dust ion Acoustic Shock Waves in Four Component Quantum Plasma

  • Nooshin Pishbin Department of Physics, Faculty of Physics and Chemistry, Alzahra University, Tehran, Iran
  • M. R. Rouhani Department of Physics, Faculty of Physics and Chemistry, Alzahra University, Tehran, Iran
  • H. Hakimi Pajouh Department of Physics, Faculty of Physics and Chemistry, Alzahra University, Tehran, Iran
  • N. Alinejad Plasma Research School, Plasma Science &Technology Research Institute, Tehran, Iran
Keywords: Quantum plasma, Dust ion acoustic shock wave, Burgers equation, Dust charge variation, Quantum hydrodynamic

Abstract

The behavior of nonlinear quantum dust ion acoustic (QDIA) shock waves in a collisionless, unmagnetized plasma consisting of inertialess quantum electrons and positrons, classical cold ions and stationary negatively charged dust grains with dust charge variation is investigated using quantum hydrodynamic (QHD) equations. The propagation of small amplitude QDIA shock waves is governed by Burgers equation. It is shown that the dust charge variation plays an important role in the formation of such QDIA shock structures. The dependence of the shock waves amplitude and thickness on the chemical potential is investigated. The present theory is applicable to analyze the formation of nonlinear structures at quantum scales in dense astrophysical objects.

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Published
2017-01-18
How to Cite
Pishbin, N., Rouhani, M. R., Pajouh, H. H., & Alinejad, N. (2017). Dust-Charge Variation Effects on Dust ion Acoustic Shock Waves in Four Component Quantum Plasma. JOURNAL OF ADVANCES IN PHYSICS, 13(1), 4499-4506. https://doi.org/10.24297/jap.v13i1.4517
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Articles