CLOSED-ORBIT THEORY OF OSCILLATIONS IN ATOMIC PHOTOABSORPTION CROSS-SECTIONS IN A STRONG ELECTRIC-FIELD .2. DERIVATION OF FORMULAS

被引：99

作者：

GAO, J

DELOS, JB

机构：

[1] Physics Department, College of William and Mary, Williamsburg

来源：

PHYSICAL REVIEW A | 1992年 / 46卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.46.1455

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A formula for photoabsorption cross sections of hydrogen and alkali-metal atoms in a static electric field is derived, based on the closed-orbit theory previously used to study hydrogen in a magnetic field. Electric fields are simpler than magnetic fields, because the classical motion is regular and closed orbits can be enumerated. In alkali metals the core modifies the relevant dipole matrix elements, and it produces additional phase shifts.

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页码：1455 / 1467

页数：13

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