2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/218548We perform accurate calculations of the dependence of transition frequencies in two valence electron atoms and ions on a variation of the fine structure constant, alpha. The relativistic Hartree-Fock method is used with many-body perturbation theory and configuration interaction methods to calculate transition frequencies. The results are to be used in atomic-clock-type laboratory experiments designed to test whether alpha varies in time.Atomic PhysicsRelativistic effects in two valence electron atoms and ions and the search for variation of the fine structure constanttext