用流体力学方法研究有质动力相互作用的第二个效应

THE SECOND EFFECT OF PONDEROMOTIVE INTERACTIONS STUDIED BY HYDRODYNAMIC METHOD

根据电子在高频场中响应的特点,建立了几个辅助的矢量恒等式,运用矢量运算和流体力学方法导出了由非线性有质动力相互作用激发的低频涡旋电流的表达式;并指出 Kono 等人文章中一个概念上的错误;得出磁场激发比密度扰动的激发更易发生的结论.

According to the characteristics of respones of electrons in high frequency fields,several auxiliary vector identities are set up.Using vector operations and hydrodynamic method,the expression of the low fre- quency vortex current excited by nonlinear ponderomotive interactions is drived;A conceptual mistake in Kono et al.is pointed out;A conclusion that the excitation of magnetic fields is more easier than that of density modification is obtained.