Document Type

Article

Department/Program

Physics

Journal Title

Physical Review A

Pub Date

7-1997

Publisher

American Physical Society

Volume

56

Issue

1

First Page

331

Abstract

In this paper we obtain a simple analytic formula for the photodetachment cross section of H− in parallel electric and magnetic fields. The three-dimensional semiclassical approximation predicts oscillations in the spectrum and correlates these oscillations with closed classical orbits. The cylindrical symmetry of the Hamiltonian produces some interesting effects. In particular, at boundary energies the semiclassical approximation fails as a focused cusp approaches the origin.

DOI

https://doi.org/10.1103/PhysRevA.56.331

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