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Résumé |
In recent years, chiral effective field theory (EFT) has reshaped our
approach to the modelling of nuclear interactions, both conceptually
and practically. At present several EFT-inspired nuclear Hamiltonians,
derived more or less rigorously according to EFT principles, are on the
market and are successful in describing numerous properties of light and
medium-mass nuclei. Nevertheless, there is increasing debate on whether
such calculations truly fulfil EFT potentialities, with alternative EFT
schemes also being pursued. I this seminar I will discuss how these
developments and issues at the level of the nuclear Hamiltonian impact
many-body methods and calculations. I will do so by first examining a few
successful results in medium-mass nuclei obtained with chiral-EFT potentials.
Next, I will present a preliminary study of extended neutron matter where a
pionless-EFT interaction, devoid of the issues alluded to above, is employed. |
