2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/153248The retarded long-range potentials for hydrogen and alkali-metal atoms in their ground states and a perfectly conducting wall are calculated. The potentials are given over a wide range of atom-wall distances and the validity of the approximations used is established.RevTeX, epsf, 11 pages, 2 figsAtomic Physicstext