Convergent close-coupling calculations of two-photon double ionization of helium

被引：41

作者：

Kheifets, A. S. ^{[1
]}

Ivanov, I. A. ^{[1
]}

机构：

[1] Australian Natl Univ, Res Sch Phys Sci & Engn, Canberra, ACT 0200, Australia

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2006年 / 39卷 / 07期

关键词：

D O I：

10.1088/0953-4075/39/7/015

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We apply the convergent close-coupling (CCC) formalism to the problem of two-photon double ionization of helium. The electron-photon interaction is treated perturbatively whereas the electron-electron interaction is included in full. The integrated two-photon double ionization cross-section is substantially below non-perturbative literature results. However, the pattern of the angular correlation in the two-electron continuum is remarkably close to the nonperturbative time-dependent close-coupling calculation of Hu et al (2005 J. Phys. B: At. Mol. Opt. Phys. 38 L35).

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页码：1731 / 1742

页数：12

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