标题： 球面上的维格纳流 显示英文标题

标题： The Wigner flow on the sphere

摘要： 我们推导了在非线性Kerr演化下SU(2) Wigner函数的连续性方程。 我们给出了相应量子Wigner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与经典情况有显著不同，这在相应停滞线的形式中明显体现出来。 显示英文摘要

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.