17 citations · 20 across the 4 of their papers we have counts for
5 papers
Bogoliubov self-consistent and second-order Green's function methods for attractive fermionic interactions
Mauricio Rodr{í}guez-Mayorga, Johannes Tölle, Pierre-François Loos
Describing fermionic systems with attractive interactions, such as superconductors and atomic nuclei, beyond the mean-field level remains a central challenge. In this work, we inve…
reduced density matrix from iterated linearized Dyson equation
Fabien Bruneval, Erik Verzijl, Arno Förster +1
Iterating the Dyson equation with the static part of the self-energy leads to a concise and possibly improved expression of the one-body reduced density matrix from any self-energy…
Connections between Richardson-Gaudin States, Perfect-Pairing, and Pair Coupled-Cluster Theory
Paul A. Johnson, Charles-Émile Fecteau, Samuel Nadeau +2
Slater determinants underpin most electronic structure methods, but orbital-based approaches often struggle to describe strong correlation efficiently. Geminal-based theories, by c…
Can Handle Multireference Systems?
Abdallah Ammar, Antoine Marie, Mauricio Rodríguez-Mayorga +2
Due to the infinite summation of bubble diagrams, the approximation of Green's function perturbation theory has proven particularly effective in the weak correlation regime, w…
density matrix to estimate self-consistent total energy in solids
Adam Hassan Denawi, Fabien Bruneval, Marc Torrent +1
The approximation is a well-established method for calculating ionization potentials and electron affinities in solids and molecules. For numerous years, obtaining self-consis…