球面上的维格纳流
The Wigner flow on the sphere
摘要：
我们导出了SU（2）Wigner函数在非线性Kerr演化下演化的连续性方程。我们给出了量子维格纳电流的显式表达式，并讨论了经典极限的出现。我们表明，量子电流的整体结构显着不同于经典的，这是清楚地反映在相应的停滞线的形式。
英文摘要：
We derive a continuity equation for the evolution of the SU(2) Wigner function under nonlinear Kerr evolution. We give explicit expressions for the resulting quantum Wigner current, and discuss the appearance of the classical limit. We show that the global structure of the quantum current significantly differs from the classical one, which is clearly reflected in the form of the corresponding stagnation lines.
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