Speaker
Tommaso Chiarotti
(EPFL)
Description
Despite its simplicity the interacting homogeneous electron gas (HEG) is a paradigmatic test case in the study of the electronic structure of condensed matter. Beside being a model for valence electrons in simple metals, it also provides the basic ingredient for key electronic-structure theories. Here we propose to study it with many-body perturbation theory (MBPT), including diagrams beyond GW, to improve on the description of its spectral function. A novel numerical implementation of MBPT for the 3D non-relativistic HEG has been developed, with special focus on the treatment of the full-frequency dependence of the Green's function and self-energies.
Authors
Tommaso Chiarotti
(EPFL)
Dr
Andrea Ferretti
(CNR-Istituto Nanoscienze)
Prof.
Nicola Marzari
(EPFL)
