van der Waals coefficients for positronium-atom interactions
- 19 September 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 68 (3), 035201
- https://doi.org/10.1103/physreva.68.035201
Abstract
The van der Waals coefficients for positronium interactions with a number of rare gases (He, Ne, Ar, Kr, and Xe) and alkali-metal atoms (Li, Na, K, and Rb) are estimated using a variety of ab initio and semiempirical methods. Dispersion coefficients are also presented for atomic hydrogen and a number of rare-gas and alkali-metal atoms for validation purposes.Keywords
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