The possibilities of surface plasma wave (SPW) on a metal-vacuum interface in semiconductor quantum plasma by considering the effects of Coulomb exchange (CE) interaction and the spin-polarization has been explored. The dispersion for the SPW has been setup using the modified quantum hydrodynamic (QHD) model taking into account the Fermi pressure, the quantum Bohm force, the CE, and the electron spin. The optical gain of SPW has been evaluated. It is found that CE effects and spin-polarization increases the wave frequency and enhances the gain during the stimulated emission.

中文翻译：

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自旋极化半导体量子等离子体中的表面等离子体波

通过考虑库仑交换 (CE) 相互作用和自旋极化的影响，已经探索了表面等离子体波 (SPW) 在半导体量子等离子体中的金属 - 真空界面上的可能性。SPW 的色散是使用修改后的量子流体动力学 (QHD) 模型设置的，同时考虑了费米压力、量子玻姆力、CE 和电子自旋。已经评估了 SPW 的光学增益。发现 CE 效应和自旋极化增加了波频率并增强了受激发射过程中的增益。