Retarded Long-Range Interaction in He Rydberg States
- 17 September 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 53 (12), 1145-1148
- https://doi.org/10.1103/PhysRevLett.53.1145
Abstract
We calculate the energy shifts, in Rydberg states of helium, due to retardation corrections to the two-photon exchange potential. The correction to the level spacings is at the accuracy of existing measurements in the states of neutral He. It may soon be possible for the first time to detect the effect of these corrections in atomic systems. Estimates of the energy shifts for high- He-like ions yield effects of several percent of the total spacing.
Keywords
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