4 papers
Benchmark of Multi-Channel Dyson Equation and Algebraic Diagrammatic Construction Methods for molecules
Mike Keizer, Stefano Paggi, J. Arjan Berger +2
The Dyson-algebraic diagrammatic construction (ADC) and the multi-channel Dyson equation (MCDE) formalisms explicitly leverage multi-particle channels to formulate correlated theor…
Core and valence photoemission spectra of atoms and molecules from a multichannel Dyson equation
Stefano Paggi, J. Arjan Berger, Pina Romaniello
We recently presented multichannel Dyson equations for the \textit{ab initio} simulation of various spectroscopies. In particular, we introduced a multichannel Dyson equation for t…
Ground and excited-state properties of the extended Hubbard dimer from the multichannel Dyson equation
Stefano Paggi, J. Arjan Berger, Pina Romaniello
We have recently presented the multichannel Dyson equation as an alternative to the standard single-channel Dyson equation. While the latter involves a single many-body Green's fun…
Multichannel Dyson equations for even- and odd-order Green's functions: application to double excitations
Gabriele Riva, Théodore Fischer, Stefano Paggi +2
We extend the concept of the multichannel Dyson equation that we have recently derived to model photoemission spectra by coupling the one- and the three-body Green's functions, to…