论文标题
在磁化等离子体边界处的拓扑保护边缘模式的连续阻尼
Continuum damping of topologically-protected edge modes at the boundary of a magnetized plasma
论文作者
论文摘要
拓扑思想的最新扩展到具有破碎的时间反转对称性（例如磁化等离子体）的连续系统，为无散射无拓扑保护的表面等离子体波（TSPW）提供了新的见解。我们展示了在电子回旋频率上方传播的TSPW的独特特征：它们通过耦合到谐振模式的连续体中的无碰撞阻尼定位于光滑的等离子体 - vacuum界面中。抑制TSPWS保留了他们的单向性质和鲁棒性，以抵抗反向散射。当剪切的磁场在阻尼和未阻尼的TSPW之间产生边界时，两者相互折射而没有反射
Recent extension of the topological ideas to continuous systems with broken time-reversal symmetry, such as magnetized plasmas, provides new insights into the nature of scattering-free topologically-protected surface plasma waves (TSPWs). We demonstrate a unique characteristic of TSPWs propagating above the electron cyclotron frequency: their collisionless damping via coupling to the continuum of resonant modes localized inside a smooth plasma-vacuum interface. Damped TSPWs retain their unidirectional nature and robustness against backscattering. When sheared magnetic field creates a boundary between damped and undamped TSPWs, the two refract into each other without reflections
