activity
20142026
most citedUnphysical and Physical Solutions in Many-Body Theories: from Weak to Strong Correlation

72 citations · 322 across the 28 of their papers we have counts for

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Showing 2026Show all

5 papers · 1 filter

physics.chem-ph2026

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…

cond-mat.other2026

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…

cond-mat.str-el2026

Algebraic Diagrammatic Construction of the Multichannel Dyson Equation

Thibault Demartini, J. Arjan Berger, Guillaume Blanchon +4

The multichannel Dyson equation (MCDE) was recently introduced as a new approximation scheme to compute the one-body Green function in many-body systems, as reported by Riva et al.…

cond-mat.str-el2026

The multichannel Dyson equation for double ionisation spectroscopies

Pierre Sellié, J. Arjan Berger, Pina Romaniello

Several photoemission spectroscopies and, in particular, Auger spectroscopy, involve double-ionization processes. For the numerical simulation of these spectroscopies it is conveni…

cond-mat.other2026

Direct and inverse photoemission spectra from the screened multichannel Dyson equation

Pina Romaniello, J. Arjan Berger

We present the screened multichannel Dyson equation for the simulation of both direct and inverse photoemission spectra from first principles. The screened multichannel Dyson equat…