带电粒子在均匀磁场中运动的Wigner函数

Wigner function′s of charged particle in the uniform magnetic field

研究Wigner函数具有十分重要的物理意义,因为它是密度矩阵的特殊表示形式,并且是相空间中的一个准概率分布函数。本文首先回顾了Wigner函数的计算方法及其性质;然后通过求解星本征方程(Moyal方程)得到了均匀磁场中二维带电粒子的Wigner函数。

As a quasi-probability distribution function and a special representation of the density matrix,Wigner function is of great significance in physics.With the revision of nature and calculation method of Wigner function,the Wigner function of charged particles in the uniform magnetic field is obtained with the help of Star-eigenequation.