Nonadiabatic coupling in cold collisions of spin-polarized metastable hydrogen atoms

Robert C. Forrey, Alex Dalgarno, Yulian V. Vanne, Alejandro Saenz, Piotr Froelich

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Previous calculations of low-temperature cross sections for collisions between spin-polarized metastable hydrogen atoms are improved to include nonadiabatic radial and angular coupling at large interatomic separations. The electrostatic dipole-quadrupole interaction produces nonadiabatic radial coupling between (2s,2p) and (2p,2p) states, while the Coriolis interaction produces nonadiabatic angular coupling. Both of these long-range contributions are handled in a space-fixed atomic gauge that is particularly convenient for a spin-polarized system. The improved theoretical results are compared with an existing experiment.

Original languageEnglish (US)
Article number052709
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume76
Issue number5
DOIs
StatePublished - Nov 29 2007

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metastable atoms
hydrogen atoms
collisions
quadrupoles
interactions
electrostatics
dipoles
cross sections

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Forrey, Robert C. ; Dalgarno, Alex ; Vanne, Yulian V. ; Saenz, Alejandro ; Froelich, Piotr. / Nonadiabatic coupling in cold collisions of spin-polarized metastable hydrogen atoms. In: Physical Review A - Atomic, Molecular, and Optical Physics. 2007 ; Vol. 76, No. 5.
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Nonadiabatic coupling in cold collisions of spin-polarized metastable hydrogen atoms. / Forrey, Robert C.; Dalgarno, Alex; Vanne, Yulian V.; Saenz, Alejandro; Froelich, Piotr.

In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 76, No. 5, 052709, 29.11.2007.

Research output: Contribution to journalArticle

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T1 - Nonadiabatic coupling in cold collisions of spin-polarized metastable hydrogen atoms

AU - Forrey, Robert C.

AU - Dalgarno, Alex

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AU - Saenz, Alejandro

AU - Froelich, Piotr

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