Long-Range Interactions for Hydrogen: 6P-1S and 6P-2S
arXiv:1711.10036 · doi:10.3390/atoms5040048
Abstract
The collisional shift of a transition constitutes an important systematic effect in high-precision spectroscopy. Accurate values for van der Waalsinteraction coefficients are required in order to evaluate the distance-dependent frequency shift. We here consider the interaction of excited hydrogen 6P atoms with metastable atoms (in the 2S state), in order to explore the influence of quasi-degenerate 2P, and 6S states on the dipole-dipole interaction. The motivation for the calculation is given by planned high-precision measurements of the transition. Due to the presence of quasi-degenerate levels, one can use the non-retarded approximation for the interaction terms over wide distance ranges.
13 pages; RevTeX; accepted for publication in the journal "Atoms" (special issue on high-precision spectroscopy)
References in corpus (6)
- Body-assisted van der Waals interaction between excited atoms
- Long-range interactions of hydrogen atoms in excited states. I. 2S-1S interactions and Dirac-delta perturbations
- Long-Range Tails in van der Waals Interactions of Excited-State and Ground-State Atoms
- Long-range interactions of hydrogen atoms in excited states. II. Hyperfine-resolved 2S-2S system
- Long-range interactions of hydrogen atoms in excited states. III. nS-1S interactions for n >= 3
- Adjacency Graphs and Long-Range Interactions of Atoms in Quasi-Degenerate States: Applied Graph Theory