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<p>By using the Particle-in-Cell (PIC) simulation method, it is verified that a dark envelope solitary wave exists in a two-temperature-ion dusty plasma. Dependence of the envelope wave amplitude, width, and velocity on system parameters such as the nonlinearity strength and the wave number is obtained from both analytical theory and numerical results. Both are in good agreement within the parameter regime where the wave amplitude and the wave number are sufficiently small. The significance lies in the understanding of wave dynamics in complex plasmas for applications in plasma communication and energy transport. A self-consistent nonlinear Schrödinger equation (NLSE) is developed and validated through analytical and PIC simulations. The findings reveal the critical role of nonlinearity and thermal effects in wave behavior, offering new insights into the stability and propagation of dark solitons in dusty plasmas, with implications for future plasma technologies.</p>

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Dark envelope nonlinear wave in a two-temperature-ion dusty plasma

  • 期刊论文

  • 发表日期：

    2026年3月30日

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  • Gai-gai Li,
  • Fei-yun Ding,
  • Zhong-zheng Li,
  • Juan-fang Han,
  • Wen-shan Duan

摘要

By using the Particle-in-Cell (PIC) simulation method, it is verified that a dark envelope solitary wave exists in a two-temperature-ion dusty plasma. Dependence of the envelope wave amplitude, width, and velocity on system parameters such as the nonlinearity strength and the wave number is obtained from both analytical theory and numerical results. Both are in good agreement within the parameter regime where the wave amplitude and the wave number are sufficiently small. The significance lies in the understanding of wave dynamics in complex plasmas for applications in plasma communication and energy transport. A self-consistent nonlinear Schrödinger equation (NLSE) is developed and validated through analytical and PIC simulations. The findings reveal the critical role of nonlinearity and thermal effects in wave behavior, offering new insights into the stability and propagation of dark solitons in dusty plasmas, with implications for future plasma technologies.