论文标题
使用虚拟探测器理论与路径求和的强场非序列双光电离
Strong-Field Nonsequential Double Photoionization Using Virtual Detector Theory with Path Summation
论文作者
论文摘要
我们介绍了具有氦特征的模型两电子原子的非序列强场电离动力学的初始研究。使用在两电子二维空间中不同点提取的检测器信号来表征并显示单离子事件。双光电子动量分布是通过虚拟粒子轨迹上的相干路径夏末计算的。从详细的虚拟粒子跟踪和能量时间读数中获得了对不同电离和电子回忆途径的见解。这项研究表明，虚拟探测器理论扩展到强场多电子量子动力学，并突出了准经典电子传播中不断发展的量子相的重要性。
We present an ab initio study of the nonsequential strong-field ionization dynamics of a model two-electron atom with helium character. Single- and double-ionization events are characterized and displayed using detector signals extracted at different points in the two-electron two-dimensional space. The double photoelectron momentum distribution is calculated via coherent path-summation over virtual particle trajectories. Insights into different ionization and electron recollision pathways are gained from detailed virtual-particle tracking and energy-time readouts. This study demonstrates the extension of virtual detector theory to strong-field multi-electron quantum dynamics and highlights the importance of the evolving quantum phase in quasi-classical electron propagation.
