Routes to nonsequential double ionization

被引：169

作者：

Kopold, R

Becker, W

Rottke, H

Sandner, W

机构：

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

[2] Univ New Mexico, Dept Phys & Astron, Ctr Adv Studies, Albuquerque, NM 87131 USA

[3] Tech Univ Berlin, FB 4, D-10623 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.85.3781

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A method is proposed for the calculation of the S matrix for many-electron processes in intense-laser atom physics, in close analogy to the strong-field approximation for one-electron processes. Given a scenario of how some process evolves, corresponding approximations to the classical action are made which allow for the evaluation of the quantum-mechanical S matrix. The method is applied to the distribution of the total electronic momentum in nonsequential double ionization, and the results are compared to recent measurements. Good agreement is obtained for neon for a rescattering scenario. There is no comparable agreement for helium and argon, and possible alternative scenarios are discussed.

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页码：3781 / 3784

页数：4

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