Investigation of the effect of varying magnetic field and Coriolis force on nonlinear ion-acoustic waves in collisional quantum plasma

Document Type : Full length research Paper

Author

Department of Physics, Faculty of Science, Behbahan Khatam Alanbia University of Technology, Behbahan, 63616-47189, Iran

Abstract

In this study, a collisional quantum plasma, consisting of positively charged inertial non-degenerate ions and inertialess degenerate electrons, is considered in the presence of the spatially varying magnetic field. The excited nonlinear wave propagation due to changes in the magnetic field and Coriolis force is investigated using the fluid model. The differential equation governing the propagation of ion-acoustic solitons is obtained by the reductive perturbation method. This is a modified Korteweg–de Vries–Burgers differential equation where Burger dissipation and collision terms are derived from spatial changes of the magnetic field, the collision of ions with neutral particles, and the effect of Coriolis force. Results of the numerical analysis indicate the combined effect of the magnetic field, the collision of ions with neutral particles, and Coriolis force on the behavior of the ion-acoustic mode causes oscillating and radiating pulses behind the soliton propagation. This equation is converted into the quantum ion-acoustic equation by eliminating spatial changes of the magnetic field and Coriolis force as well as collision of ions with neutral particles.

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References

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Journal of Research on Many-body Systems
Volume 14, Issue 1 - Serial Number 40
spring 2024
June 2024
Pages 1-11

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History

  • Receive Date: 07 July 2022
  • Revise Date: 25 November 2023
  • Accept Date: 21 May 2024

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