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Dispersion coefficients for H and He interactions with alkali-metal and alkaline-earth-metal atoms

Mitroy, Jim and Bromley, Michael W. J. (2003). Dispersion coefficients for H and He interactions with alkali-metal and alkaline-earth-metal atoms. Physical Review A (Atomic, Molecular and Optical Physics),68(6):062710-1-062710-6.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 24 times in Scopus Article | Citations

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Title Dispersion coefficients for H and He interactions with alkali-metal and alkaline-earth-metal atoms
Author Mitroy, Jim
Bromley, Michael W. J.
Journal Name Physical Review A (Atomic, Molecular and Optical Physics)
Publication Date 2003
Volume Number 68
Issue Number 6
ISSN 1094-1622   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-1142292306
Start Page 062710-1
End Page 062710-6
Total Pages 6
Place of Publication College Park, United States
Publisher The American Physical Society
Field of Research 0202 - Atomic, Molecular, Nuclear, Particle and Plasma Physics
0204 - Condensed Matter Physics
0205 - Optical Physics
HERDC Category C1 - Journal Article (DEST)
Abstract The van der Waals coefficients C-6, C-8, and C-10 for H and He interactions with the alkali-metal (Li, Na, K, and Rb) and alkaline-earth-metal (Be, Mg, Ca, and Sr) atoms are determined from oscillator strength sum rules. The oscillator strengths were computed using a combination of ab initio and semiempirical methods. The dispersion parameters generally agree with close to exact variational calculations for Li-H and Li-He at the 0.1% level of accuracy. For larger systems, there is agreement with relativistic many-body perturbation theory estimates of C-6 at the 1% level. These validations for selected systems attest to the reliability of the present dispersion parameters. About half the present parameters lie within the recommended bounds of the Standard and Certain compilation [J. Chem. Phys. 83, 3002 (1985)].
Keywords static dipole polarizabilities
range interaction coefficients
many-body calculations
vanderwaals coefficients
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Additional Notes Copyright by the The American Physical Society

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