论文标题
kappa分布函数描述的无磁化等离子体中的浮动力
Ponderomotive forces in unmagnetized plasmas described by Kappa distribution functions
论文作者
论文摘要
研究了由于电磁波传播而引起的Washimi和Karpman蓬代相互作用，用于通过各向同性Kappa分布描述的无磁化等离子体。我们对kappa分布在分散关系中对低温等离子体扩展的影响的影响进行了简要分析。浮动力的空间和时间因素是波数，光谱指数$κ$以及等离子体热速度与光速之间的比率获得的。我们的结果表明，对于非偏见的热速度时，对于空间浮动力而言，非热效应的非速率效应可忽略不计。然而，对于未磁化的等离子体，仅由于存在超颗粒颗粒而出现的浮动力的时间因素才出现，并且对$κ$指数明显依赖。我们还分析了非热效应在诱导的washimi和karpman蓬松磁化磁化以及与之相关的总功率中的作用。我们还表明，随着等离子体从热平衡移动，缓慢变化的诱导的浮子磁场幅度增加。
The Washimi and Karpman ponderomotive interaction due to electromagnetic waves propagation is investigated for unmagnetized plasmas described by a isotropic Kappa distribution. We performed a brief analysis of the influence of the Kappa distribution in the dispersion relations for a low temperature plasma expansion at the lowest order in which the thermal effects are appreciated. The spatial and temporal factor of the ponderomotive force is obtained as a function of the wavenumber, the spectral index $κ$ and the ratio between the plasma thermal velocity and the speed of light. Our results show that for unmagnetized plasmas non-thermal effects are negligible for the spatial ponderomotive force when non-relativistic thermal velocities are considered. However, for unmagnetized plasmas the temporal factor of the ponderomotive force appears only due to the presence of suprathermal particles, with a clear dependence on the $κ$ index. We have also analysed the role of the non-thermal effect in the induced Washimi and Karpman ponderomotive magnetization and the total power radiated associated with it. We have also shown that the slowly varying induced ponderomotive magnetic field magnitude increases as the plasma moves away from thermal equilibrium.
