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. �2005 The American Physical Society.
| Original language | English |
|---|---|
| Pages (from-to) | 32709-32713 |
| Number of pages | 5 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 71 |
| Issue number | 3 |
| Publication status | Published - 2005 |
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Mitroy, J., & Bromley, M. (2005). Higher-order C n dispersion coefficients for hydrogen. Physical Review A - Atomic, Molecular, and Optical Physics, 71(3), 32709-32713.