论文标题
KERR参数振荡器的稳态输出中的Wigner负性
Wigner negativity in the steady-state output of a Kerr parametric oscillator
论文作者
论文摘要
来自连续驱动的线性参数振荡器的输出场可能比腔内场表现出更大的挤压场。受到这一事实的启发，我们使用颞波数据包模式描述探索了驱动的非线性Kerr参数振荡器的稳态输出字段的非经典特征。利用一种新的数值方法，我们可以访问任意波数据包模式的密度矩阵。值得注意的是，我们发现，即使稳态腔场始终以正极函数为特征，但取决于所选模式的属性，输出可能会表现出wigner否定性。
The output field from a continuously driven linear parametric oscillator may exhibit considerably more squeezing than the intracavity field. Inspired by this fact, we explore the nonclassical features of the steady-state output field of a driven nonlinear Kerr parametric oscillator using a temporal wave packet mode description. Utilizing a new numerical method, we have access to the density matrix of arbitrary wave packet modes. Remarkably, we find that even though the steady-state cavity field is always characterized by a positive Wigner function, the output may exhibit Wigner negativity, depending on the properties of the selected mode.
