PHENIICS Fest 2018

Session

Nuclear Physics - Theory

28 mai 2018, 14:30

200/0-Auditorium - Auditorium P. Lehmann (IJCLab)

Description

Chair : Pierre Arthius

10. A microscopic treatment of correlated nucleons: Collective properties in stable and exotic nuclei

M. Olivier Vasseur (CNRS - IPN Orsay)

28/05/2018 14:30

Talk

Collective excitations are observed and analyzed in several many-body systems such as, for instance, atomic nuclei, trapped atomic gases or metallic clusters. A model which is widely used to describe collective excitations is the random-phase approximation (RPA), where the excited modes are superpositions of 1 particle-1 hole configurations only. The RPA allows in general for a satisfactory...

8. Bridging nuclear ab-initio and Energy Density Functional Theories

M. Antoine Boulet (IPNO)

28/05/2018 14:50

Talk

A density functional is proposed for Fermi systems with anomalously large s-wave scattering length that has no free parameters. The functional is designed to correctly reproduce the unitary limit in Fermi gases together with the leading-order contributions in the s-wave channel at low density. The functional reproduces well static properties of Fermi gas at or close to the unitary limit. By...

40. Symmetry broken & restored many-body theories in nuclear structure

Mme Julien Ripoche (CEA/DAM)

29/05/2018 17:15

Talk

Methods to solve the N-body Schroedinger equation must cope with two specific attributes of inter-nucleon interactions that are responsible for the non-perturbative character of the nuclear many-body problem. These elements of non-perturbative physics are of ultra-violet and infra-red natures and can be tamed down by pre-processing the nuclear Hamiltonian via Similarity Renormalization Group...