Quantum Theory of Recollisional (e, 2e) Process in Strong Field Nonsequential Double Ionization of Helium

被引:76
作者
Chen, Zhangjin [1 ]
Liang, Yaqiu [1 ,2 ]
Lin, C. D. [1 ]
机构
[1] Kansas State Univ, JR Macdonald Lab, Dept Phys, Manhattan, KS 66506 USA
[2] Liaoning Univ, Coll Phys, Shenyang 110036, Peoples R China
关键词
ELECTRON-EMISSION; ATOMS;
D O I
10.1103/PhysRevLett.104.253201
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Based on the full quantal recollision model and field-free electron impact ionization theory, we calculate the correlated momentum spectra of the two outgoing electrons in strong field nonsequential double ionization (NSDI) of helium to compare with recent experiments. By analyzing the relative strength of binary versus recoil collisions exhibited in the photoelectron spectra, we confirm that the observed fingerlike structure in the experiment is a consequence of the Coulomb interaction between the two emitted electrons. Our result supports the recollision mechanism of strong field NSDI at the most fundamental level.
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页数:4
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