论文标题
强场二维隧道电离中最可探测的路线和经典量子通信
Local most-probable routes and classic-quantum correspondence in strong-field two-dimensional tunneling ionization
论文作者
论文摘要
我们在数值和分析上研究具有各种形式的强二维（2D）激光场中原子的电离。我们专注于与光电子动量分布（PMDS）的局部最大值相对应的局部最可探测的隧道路线（一些特定的电子轨迹）。通过制作经典的量词对应关系，我们获得了以电子位置在隧道出口处的电子位置为特征的这些路线的条件。通过比较经典限制的确定途径和部分偶联的近似，其中假定隧道由2D场的主要组件主导，因此解决了一些半经典属性。与局部最可探测的路线相关的PMD的局部最大值可以用作超快测量中的首选可观察物之一。
We study ionization of atoms in strong two-dimensional (2D) laser fields with various forms, numerically and analytically. We focus on the local most-probable tunneling routes (some specific electron trajectories) which are corresponding to the local maxima of photoelectron momentum distributions (PMDs). By making classic-quantum correspondence, we obtain a condition for these routes characterized by the electron position at the tunnel exit. With comparing the identified routes with the classical limit and the partial-decoupling approximation where it is assumed that tunneling is dominated by the main component of the 2D field, some semiclassical properties of 2D tunneling are addressed. The local maxima of PMD related to the local most-probable routes can be used as one of the preferred observables in ultrafast measurements.
