Nuclear density functional theory: single-particle motion
Tuesday, 22 May 2012, 13:15
Covariant [relativistic] density functional theory (CDFT), the basic
features of which will be introduced in the beginning of my talk, is
well established theoretical tool for the description of nuclear
systems. However, there are still a number of important topics which
have not been either addressed or satisfactorily resolved within its
framework. In my talk, I will concentrate on one of them, namely, on
For a long period of time, CDFT has been applied mostly to collective
phenomena and only recently the interest has shifted to the description
of the single-particle motion in nuclear systems. The successes and
limitations of the description of single-particle degrees of freedom in
spherical, deformed and rotating nuclei within the CDFT will be discussed.
Further improvement of the description of the energies of predominantly
single-particle states and their wave functions requires beyond mean
field methods built on CDFT which include particle-vibration coupling.
The impact of particle-vibration coupling on different physical observables
such as the energies of predominantly single-particle states, the spin-orbit
splittings, the energy splittings in pseudospin doublets will be illustrated
in spherical nuclei ranging from light up to superheavy ones. I will also
compare the description of these degrees of freedom in nuclear and non-nuclear
density functional theories.