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<p>Recently, Alyousef et al. (Braz. J. Phys. <b>55</b>(4), 164 2025) reported “Modulational Instability of Dust-Ion-Acoustic Modulated Envelope Structures in Ultracold Quantum Complex Plasmas: Solitons, Rogue Waves, and Breathers.” The authors studied modulation instability of dust ion-acoustic wave and different types of localized structures in an ultracold, unmagnetized, collisionless, quantum plasma consisting of negatively charged stationary dust grains, inertial ions, and inertialess electrons by deriving a nonlinear Schrödinger equation (NLSE). This comment highlights that the work may offer valuable insights but the applicability of their findings to nonlinear wave characteristics is limited, as dust particles are unlikely to remain stable in a quantum plasma environment with such high electron number densities.</p>

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Comment on “Modulational Instability of Dust-Ion-Acoustic Modulated Envelope Structures in Ultracold Quantum Complex Plasmas: Solitons, Rogue Waves, and Breathers”

  • 期刊论文

  • 发表日期：

    2025年8月27日

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  • Jit Sarkar,
  • Asit Saha

摘要

Recently, Alyousef et al. (Braz. J. Phys. 55(4), 164 2025) reported “Modulational Instability of Dust-Ion-Acoustic Modulated Envelope Structures in Ultracold Quantum Complex Plasmas: Solitons, Rogue Waves, and Breathers.” The authors studied modulation instability of dust ion-acoustic wave and different types of localized structures in an ultracold, unmagnetized, collisionless, quantum plasma consisting of negatively charged stationary dust grains, inertial ions, and inertialess electrons by deriving a nonlinear Schrödinger equation (NLSE). This comment highlights that the work may offer valuable insights but the applicability of their findings to nonlinear wave characteristics is limited, as dust particles are unlikely to remain stable in a quantum plasma environment with such high electron number densities.