计算量子光场态的Wigner函数的新方法

A New Approach for Calculating Wigner Functions of Quantum Optical States

我们提出计算量子光场态的Wigner函数的新方法,即注意到任何光场态都可以用Fock空间中的粒子数态|m〉展开,所以我们先给出|m〉〈n|算符的Weyl排序形式,再利用Weyl排序算符的性质和算符经典对应的规则,以及相似变换下Weyl排序的算符的序不变性,就可以原则上求出任何光场态的Wigner函数。

By deriving the Weyl-ordered form of Fock projector [m〉〈n] and using the property that Weylordered operators were ordering-invariant under similar transformations we have found a new approach for calculating Wigner functions of quantum optical states.