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Quasiparticles and phonon satellites in spectral functions of semiconductors and insulators: Cumulants applied to full first principles theory and Fröhlich polaron
Jean Paul Nery, Philip B. Allen, Gabriel Antonius +3
The electron-phonon interaction causes thermal and zero-point motion shifts of electron quasiparticle (QP) energies . Other consequences of interactions, visible in angle-r…
Dynamical local connector approximation for electron addition and removal spectra
Marco Vanzini, Lucia Reining, Matteo Gatti
Realistic calculations of electron addition and removal spectra rely most often on Green's functions and complex, non-local self-energies. We introduce a shortcut to obtain the spe…
Non-local and non-adiabatic effects in the charge-density response of solids: a time-dependent density functional approach
Martin Panholzer, Matteo Gatti, Lucia Reining
The charge-density response of extended materials is usually dominated by the collective oscillation of electrons, the plasmons. Beyond this feature, however, intriguing many-body…