315 citations · 3.8k across the 115 of their papers we have counts for
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Interacting electrons and bosons in the doubly screened approximation: A time-linear scaling method for first-principles simulations
Yaroslav Pavlyukh, Enrico Perfetto, Gianluca Stefanucci
We augment the time-linear formulation of the Kadanoff-Baym equations for systems of interacting electrons and quantized phonons or photons with the approximation,…
Time-linear scaling NEGF methods for real-time simulations of interacting electrons and bosons. II. Dynamics of polarons and doublons
Yaroslav Pavlyukh, Enrico Perfetto, Daniel Karlsson +2
Nonequilibrium dynamics of the open chain Holstein-Hubbard model is studied using the linear time-scaling GKBA+ODE scheme developed in the preceeding paper. We focus on the set of…
From carriers and virtual excitons to exciton populations: Insights into time-resolved ARPES spectra from an exactly solvable model
G. Stefanucci, E. Perfetto
We calculate the {\em exact} time-resolved ARPES spectrum of a two-band model semiconductor driven out of equilibrium by resonant and nonresonant laser pulses, highlighting the eff…
The dissection algorithm for the second-Born self-energy
E. Perfetto, G. Stefanucci
We describe an algorithm to efficiently compute the second-Born self-energy of many-body perurbation theory. The core idea consists in dissecting the set of all four-index Coulomb…
CHEERS: A tool for Correlated Hole-Electron Evolution from Real-time Simulations
E. Perfetto, G. Stefanucci
We put forward a practical nonequilibrium Green's function (NEGF) scheme to perform real-time evolutions of many-body interacting systems driven out of equilibrium by external fiel…
Benchmarking Nonequilibrium Green's Functions against Configuration Interaction for time-dependent Auger decay processes
F. Covito, E. Perfetto, A. Rubio +1
We have recently proposed a Nonequilibrium Green's Function (NEGF) approach to include Auger decay processes in the ultrafast charge dynamics of photoionized molecules. Within the…