中国物理B ›› 2024, Vol. 33 ›› Issue (8): 85201-085201.doi: 10.1088/1674-1056/ad47e4

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Ion acoustic solitary waves in an adiabatic dusty plasma: Roles of superthermal electrons, ion loss and ionization

Qianghua Rao(饶强华)1,2, Hui Chen(陈辉)1,2, Sanqiu Liu(刘三秋)1,2,†, and Xiaochang Chen(陈小昌)1,2,‡   

  1. 1 Department of Physics, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China;
    2 Jiangxi Province Key Laboratory of Fusion and Information Control, Nanchang University, Nanchang 330031, China
  • 收稿日期:2024-03-22 修回日期:2024-04-30 出版日期:2024-08-15 发布日期:2024-07-23
  • 通讯作者: Sanqiu Liu, Xiaochang Chen E-mail:sqlgroup@ncu.edu;xcchen1985@ncu.edu.cn
  • 基金资助:
    The work was supported by the Project of Scientific and Technological Innovation Base of Jiangxi Province, China (Grant No. 20203CCD46008), the Key R&D Plan of Jiangxi Province, China (Grant No. 20223BBH80006), the Natural Science Foundation of Jiangxi Province, China (Grant No. 20212BAB211025), and the Jiangxi Province Key Laboratory of Fusion and Information Control (Grant No. 20171BCD40005).

Ion acoustic solitary waves in an adiabatic dusty plasma: Roles of superthermal electrons, ion loss and ionization

Qianghua Rao(饶强华)1,2, Hui Chen(陈辉)1,2, Sanqiu Liu(刘三秋)1,2,†, and Xiaochang Chen(陈小昌)1,2,‡   

  1. 1 Department of Physics, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China;
    2 Jiangxi Province Key Laboratory of Fusion and Information Control, Nanchang University, Nanchang 330031, China
  • Received:2024-03-22 Revised:2024-04-30 Online:2024-08-15 Published:2024-07-23
  • Contact: Sanqiu Liu, Xiaochang Chen E-mail:sqlgroup@ncu.edu;xcchen1985@ncu.edu.cn
  • Supported by:
    The work was supported by the Project of Scientific and Technological Innovation Base of Jiangxi Province, China (Grant No. 20203CCD46008), the Key R&D Plan of Jiangxi Province, China (Grant No. 20223BBH80006), the Natural Science Foundation of Jiangxi Province, China (Grant No. 20212BAB211025), and the Jiangxi Province Key Laboratory of Fusion and Information Control (Grant No. 20171BCD40005).

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摘要： We investigate propagation of dust ion acoustic solitary wave (DIASW) in a multicomponent dusty plasma with adiabatic ions, superthermal electrons, and stationary dust. The reductive perturbation method is employed to derive the damped Korteweg-de Vries (DKdV) equation which describes DIASW. The result reveals that the adiabaticity of ions significantly modifies the basic features of the DIASW. The ionization effect makes the solitary wave grow, while collisions reduce the growth rate and even lead to the damping. With the increases in ionization cross section ${\Delta \sigma}/{\sigma_0}$, ion-to-electron density ratio ${\delta}_{\rm{ie}}$ and superthermal electrons parameter $\kappa$, the effect of ionization on DIASW enhances.

关键词: dust ion acoustic wave, solitary wave, ionization, adiabatic process

Abstract: We investigate propagation of dust ion acoustic solitary wave (DIASW) in a multicomponent dusty plasma with adiabatic ions, superthermal electrons, and stationary dust. The reductive perturbation method is employed to derive the damped Korteweg-de Vries (DKdV) equation which describes DIASW. The result reveals that the adiabaticity of ions significantly modifies the basic features of the DIASW. The ionization effect makes the solitary wave grow, while collisions reduce the growth rate and even lead to the damping. With the increases in ionization cross section ${\Delta \sigma}/{\sigma_0}$, ion-to-electron density ratio ${\delta}_{\rm{ie}}$ and superthermal electrons parameter $\kappa$, the effect of ionization on DIASW enhances.

Key words: dust ion acoustic wave, solitary wave, ionization, adiabatic process

中图分类号:  (Ionization of plasmas)

  • 52.25.Jm
52.35.Mw (Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.)) 94.05.Fg (Solitons and solitary waves) 94.05.Bf (Plasma interactions with dust and aerosols)