Closed-orbit theory and the photodetachment cross section of H{sup {minus}} in parallel electric and magnetic fields

Journal Article · Tue Jul 01 00:00:00 EDT 1997 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.56.331· OSTI ID:531774

Peters, A D; Jaffe, C ^[1]; Delos, J B ^[2]

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1. Department of Chemistry, West Virginia University, Morgantown, West Virginia 23506 (United States)
2. Department of Physics, College of William and Mary, Williamsburg, Virginia 23187 (United States)

In this paper we obtain a simple analytic formula for the photodetachment cross section of H{sup {minus}} 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. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 531774
• Journal Information: Physical Review A, Journal Name: Physical Review A Journal Issue: 1 Vol. 56; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANIONS
ELECTRIC FIELDS
ELECTRO-OPTICAL EFFECTS
ELECTRON DETACHMENT
HAMILTONIANS
HYDROGEN IONS
HYDROGEN IONS 1 MINUS
MAGNETIC FIELDS
MAGNETO-OPTICAL EFFECTS
ORBITS
OSCILLATIONS
SEMICLASSICAL APPROXIMATION