【摘要】 在计入离子运动对色散关系产生影响的基础上,数值求解了完全简并金属等离子体中纵振荡的完全色散关系。将其色散曲线与纯电子等离子体色散曲线对比,得到了是否需要考虑离子贡献的分界线。此外,对比不同电子-离子温度比值、不同电子温度、不同密度的色散曲线,还得到了电子-离子温度之比不影响色散关系、密度越大振荡的截止频率就越大等结论。更多还原

【Abstract】 Considering of ions contribution in the Maxwell-Vlasov equations,the complete dispersion relation(which is filled the voids of the MHD theory and two-fluid model theory) of longitudinal oscillations in the degenerate metal-plasmas is obtained by numerical method.Comparing the dispersive curves of electron-ion-plasmas with that of electron-plasmas,one gets the separatrix whether include ions contribution or not.In addition,some curves in different ratios between electron temperature and ion temperature 、in different electron temperatures and in different densities are presented,and the conclusion that the ratios between electron temperature and ion temperature will not affect dispersion relations is easily obtained.更多还原