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We calculate vacuum polarization corrections to the binding energies inneutral alkali atoms Na through to the superheavy element E119. We employ therelativistic Hartree-Fock method to demonstrate the importance of relaxation ofthe electronic core and the correlation potential method to study the effectsof second and higher orders of perturbation theory. These many-body effects aresizeable for all orbitals, though particularly important for orbitals withangular momentum quantum number l>0. The orders of magnitude enhancement for dwaves produces shifts that, for Rb and the heavier elements, are larger thanthose for p waves and only an order of magnitude smaller than the s-waveshifts. The many-body enhancement mechanisms that operate for vacuumpolarization apply also to the larger self-energy corrections.

QED radiative corrections and many-body effects in atoms: vacuum polarization and binding energy shifts in alkali metals