arXivDaily arXiv每日学术速递 周一至周五更新
arXiv physics/9803010physics.atom-phphysics.comp-ph
收藏

短强脉冲Laser中的双电子原子

Two--Electron Atoms in Short Intense Laser Pulses

Armin Scrinzi, Bernard Piraux

摘要:

本文讨论了在强激光场中含两个活跃电子原子的含时薛定谔方程的一种求解方法。Scrinzi和B. Piraux,Phys.Rev.A56,R13(1997)]来计算短激光脉冲在氦中的电离、双激发和谐波产生。该方法采用复杂的缩放和显式相关的基础上的扩展。收敛的计算记录和误差估计。在峰值强度高达10^15 W/cm^2和波长248 nm时,氦的结果准确度至少为10%。对负氢离子的电子脱离和双激发也作了同样精确的计算。

英文摘要:

We discuss a method of solving the time dependent Schrodinger equation for atoms with two active electrons in a strong laser field, which we used in a previous paper [A. Scrinzi and B. Piraux, Phys. Rev. A 56, R13 (1997)] to calculate ionization, double excitation and harmonic generation in Helium by short laser pulses. The method employs complex scaling and an expansion in an explicitly correlated basis. Convergence of the calculations is documented and error estimates are provided. The results for Helium at peak intensities up to 10^15 W/cm^2 and wave length 248 nm are accurate to at least 10 %. Similarly accurate calculations are presented for electron detachment and double excitation of the negative hydrogen ion.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑