Higher-order C-n dispersion coefficients for hydrogen

Mitroy, J. and Bromley, M. W. J. (2005) Higher-order C-n dispersion coefficients for hydrogen. Physical Review A, 71 3: . doi:10.1103/PhysRevA.71.032709

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Author Mitroy, J.
Bromley, M. W. J.
Title Higher-order C-n dispersion coefficients for hydrogen
Formatted title
Higher-order Cn dispersion coefficients for hydrogen
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
Publication date 2005-03-11
Sub-type Article (original research)
DOI 10.1103/PhysRevA.71.032709
Open Access Status File (Publisher version)
Volume 71
Issue 3
Total pages 5
Place of publication College Park, MD, United States
Publisher American Physical Society
Language eng
Formatted abstract
The complete set of second-, third-, and fourth-order van der Waals coefficients Cn 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 Cn≤16 coefficients are accurate to 13 significant digits. The relative size of the fourth-order Cn(4) to the second-order Cn(2) coefficients is seen to increase as n increases and at n=32 the fourth-order term is actually larger.
Keyword Long-range interaction
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Faculty of Science Publications
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