We go beyond the approximate series expansions used in the dispersion theory of finite-size atoms. We demonstrate that a correct, and nonperturbative, theory dramatically alters the dispersion self-energies of atoms. The nonperturbed theory gives as much as 100% corrections compared to the traditional series-expanded theory for the smaller noble gas atoms.
CITATION STYLE
Thiyam, P., Persson, C., Brevik, I., Sernelius, B. E., & Boström, M. (2014). Nonperturbative theory for the dispersion self-energy of atoms. Physical Review A - Atomic, Molecular, and Optical Physics, 90(5). https://doi.org/10.1103/PhysRevA.90.054502
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