论文标题
由于血浆密度梯度引起的右撇子惠斯勒模式和Helicon放电方向性
Preference of Right-Handed Whistler Modes and Helicon Discharge Directionality due to Plasma Density Gradients
论文作者
论文摘要
吹口哨是行星磁层中的磁化等离子体波。有限的吹口哨者（称为Helicons）可以创建高密度实验室等离子体。我们通过改变天线螺旋或磁场方向来证明血浆放电方向的逆转。模拟仅在径向密度梯度的存在下重现这些发现。在波方程中包含这种梯度会产生方位剪切电流，这首先始终解释了右左吹哨者的偏好和Helicon等离子体中的排放方向性。
Whistlers are magnetized plasma waves in planetary magnetospheres. Bounded whistlers, known as helicons, can create high-density laboratory plasmas. We demonstrate reversal of the plasma discharge direction by changing either antenna helicity or magnetic field direction. Simulations reproduce these findings only in the presence of a radial density gradient. Inclusion of such a gradient in the wave equation gives rise to azimuthal shear currents which for the first time consistently explains the preference of right- over left-handed whistlers and the discharge directionality in helicon plasmas.
