In a recent paper [D.N. Gao, Braz J Phys51, 66-74 (2021)], the author has investigated dust-acoustic wave features in a magnetized quantum dusty plasma consisting of positively or negatively charged inertial dusts and intertialess quantum ions and electrons. The ZK equation has been obtained and properties of a solitary wave solution have been reported. The instability of the dust acoustic solitary wave has also been discussed. A detailed discussion of the implications of the results to semiconductors, magnetars and the interior of white dwarfs has also been reported. In this comment, it is shown that the results presented in [1] are untrue and cannot be favorable to understand the nonlinear wave features of the interior of white dwarf, as the considered electron number density is lower than the actual number density of electrons of interior of white dwarf. For the electron number density considered in the work [1], dust particles cannot survive in the plasma system. Thus, solitary wave feature and multi-dimensional instability of dust acoustic waves are not only not applicable to semiconductors, magnetars and interior of white dwarf, but also not applicable to anywhere as such “quantum dusty plasma" does not exist in nature.

在最近的一篇论文 [DN Gao, Braz J Phys51, 66-74 (2021)] 中，作者研究了磁化量子尘埃等离子体中的尘埃声波特征，该等离子体由带正电或带负电的惯性尘埃以及无间隙量子离子和电子组成。已经获得了 ZK 方程并报告了孤立波解的性质。还讨论了尘埃声孤立波的不稳定性。还详细讨论了结果对半导体、磁星和白矮星内部的影响。在这篇评论中，表明 [1] 中的结果是不真实的，不利于理解白矮星内部的非线性波特征，因为考虑的电子数密度低于白矮星内部的实际电子数密度。对于工作中考虑的电子数密度 [1]，尘埃粒子无法在等离子体系统中存活。因此，尘埃声波的孤立波特征和多维不稳定性不仅不适用于半导体、磁星和白矮星内部，也不适用于自然界中不存在“量子尘埃等离子体”的任何地方。