Bohm potential and electron spin are very important quantum effects in quantum plasma. In certain circumstances, they may have important influences on the interaction of electromagnetic wave and plasma. In this paper, we make a comparison of spin force and Bohm potential force in Gaussian laser pulse–magnetized quantum plasma, and clarify which force plays the main role under different conditions. It is shown that for long Gaussian pulse, which force will prevail depends on the ratio of \(\lambda_{p}^{2}/L_{p}^{2}\) and the normalized potential a. And for short Gaussian pulse, if a < 0.2, the Bohm potential force is greater than the spin force, and if a > 0.2, the spin force will dominate the Bohm potential force.

中文翻译：

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激光脉冲磁化自旋等离子体中自旋力与玻姆势力的比较

玻姆势和电子自旋是量子等离子体中非常重要的量子效应。在某些情况下，它们可能对电磁波与等离子体的相互作用产生重要影响。本文对高斯激光脉冲磁化量子等离子体中的自旋力和玻姆势力进行了比较，明确了不同条件下哪种力起主要作用。结果表明，对于长高斯脉冲，哪种力占主导地位取决于\(\lambda_{p}^{2}/L_{p}^{2}\)和归一化电位a。对于短高斯脉冲，如果a < 0.2，则玻姆势力大于自旋力，如果a > 0.2，则自旋力将主导玻姆势力。