In this paper, several study methods on PMD are analyzed, such as Jones matrix, Stokes vector and the coupled nonlinear Schrodinger equation.

主要分析讨论了PMD的几种研究方法：琼斯矩阵法、斯托克斯空间法和耦合非线性薛定谔方程。

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Well, the orientation I should have for Stokes theorem is that Well, if you look at the convention around here, it tells us that the normal vector should be going this way.

对于Stokes定理中的定向——，观察这里，它的法向量应该是这个方向。

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