Strong-field approximation for intense-laser-atom processes: The choice of gauge

被引：157

作者：

Bauer, D ^{[1
]}

Milosevic, DB

Becker, W

机构：

[1] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[2] Univ Sarajevo, Fac Sci, Sarajevo 71000, Bosnia & Herceg

[3] Max Born Inst, D-12489 Berlin, Germany

来源：

PHYSICAL REVIEW A | 2005年 / 72卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.72.023415

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The strong-field approximation (SFA) can be and has been applied in both length gauge and velocity gauge with quantitatively conflicting answers. For ionization of negative ions with a ground state of odd parity, the predictions of the two gauges differ qualitatively: in the envelope of the angular-resolved energy spectrum, dips in one gauge correspond to humps in the other. We show that the length-gauge SFA matches the exact numerical solution of the time-dependent Schrodinger equation.

引用

页数：5

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