论文标题
漂移波不稳定性中的自发和明确的平价时间对称性破裂
Spontaneous and explicit parity-time-symmetry breaking in drift wave instabilities
论文作者
论文摘要
引入了一种平均时间（PT） - 对称分析的方法，以研究漂移波不稳定性的高维，复杂的参数空间。我们表明，自发的PT对称断裂导致漂移波的离子温度梯度（ITG）不稳定性，碰撞不稳定是显式PT对称性断裂的结果。确定了有限碰撞引起的新的不稳定漂移波。还发现，当PT对称性被有限的碰撞明确破坏时，离子温度和密度的梯度会破坏离子回旋体波。
A method of Parity-Time (PT)-symmetry analysis is introduced to study the high dimensional, complicated parameter space of drift wave instabilities. We show that spontaneous PT-symmetry breaking leads to the Ion Temperature Gradient (ITG) instability of drift waves, and the collisional instability is the result of explicit PT-symmetry breaking. A new unstable drift wave induced by finite collisionality is identified. It is also found that gradients of ion temperature and density can destabilize the ion cyclotron waves when PT symmetry is explicitly broken by a finite collisionality.
