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Higher-order Cn dispersion coefficients for hydrogen

Mitroy, Jim and Bromley, Michael W. J. (2005). Higher-order Cn dispersion coefficients for hydrogen. Physical Review A (Atomic, Molecular and Optical Physics),71(3):032709-032709-5.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 22 times in Scopus Article | Citations

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Title Higher-order Cn dispersion coefficients for hydrogen
Author Mitroy, Jim
Bromley, Michael W. J.
Journal Name Physical Review A (Atomic, Molecular and Optical Physics)
Publication Date 2005
Volume Number 71
Issue Number 3
ISSN 1050-2947   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-18444376172
Start Page 032709
End Page 032709-5
Total Pages 5
Place of Publication College Park, United States
Publisher American Physical Society
HERDC Category C1 - Journal Article (DEST)
Abstract The complete set of second-, third-, and fourth-order van der Waals coefficients C-n up to n=32 for the H(1s)-H(1s) dimer have been determined. They are computed by diagonalizing the nonrelativistic Hamiltonian for hydrogen to obtain a set of pseudostates that are used to evaluate the appropriate sum rules. A study of the convergence pattern for n <= 16 indicates that all the C-n <= 16 coefficients are accurate to 13 significant digits. The relative size of the fourth-order C-n((4)) to the second-order C-n((2)) coefficients is seen to increase as n increases and at n=32 the fourth-order term is actually larger.
Keywords long-range interaction
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Additional Notes Copyright by the American Physical Society

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