  Ground-state properties of 16O and 40Ca are calculated with a low-momentum
nucleon-nucleon potential, V-low-k, derived from the chiral N3LO interaction
recently constructed by Entem and Machleidt. The smooth V-low-k is used
directly in a Hartree-Fock approach, avoiding the difficulties of the
Brueckner-Hartree-Fock procedure. Corrections up to third order in the
Goldstone expansion are evaluated, leading to results that are in very good
agreement with experiment. Convergence properties of the expansion are
examined.
