论文标题
电子相关性动态特征关系在氦气系统的两光子双电离过程中的动态特征关系的普遍性
Universality of the dynamic characteristic relationship of electron correlation in the two-photon double ionization process of a helium-like system
论文作者
论文摘要
特征时间$ t_c $与两极库仑相互作用能量$ \ overline {v} _ {12} $之间的动态特征关系的通用性在两光子双电离过程中的基础状态的普遍性通过更改两电子原子系统和相应的激光条件的参数来研究。数值结果表明，在改变核电荷，电子电荷，电子质量以及同时更改核电荷和电子电荷的情况下，产物$ t_ {c} \叠加{v} _ {12} $在4.1左右保持恒定。这些结果表明，两光子双电离过程中的动态特征关系是通用的。这项工作更多地了解了超快过程中的动态特征关系，并可能在测量Attosent脉冲中发现其应用。
Universality of the dynamic characteristic relationship between the characteristic time $t_c$ and the two-electron Coulomb interaction energy $\overline{V}_{12}$ of the ground state in the two-photon double ionization process is investigated through changing the parameters of the two-electron atomic system and the corresponding laser conditions. The numerical results show that the product $t_{c}\overline{V}_{12}$ keeps constant around 4.1 in the cases of changing the nucleus charge, the electron charge, the electron mass, and changing simultaneously the nucleus charge and the electron charge. These results demonstrate that the dynamic characteristic relationship in the two-photon double ionization process is universal. This work sheds more light on the the dynamic characteristic relationship in ultrafast processes and may find its application in the measurement of attosecond pulses.
