309 citations · 1.6k across the 39 of their papers we have counts for
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cond-mat.str-el2014★ 45 cited
Real time cumulant approach for charge transfer satellites in x-ray photoemission spectra
J. J. Kas, F. D. Vila, J. J. Rehr +1
X-ray photoemission spectra generally exhibit satellite features in addition to the quasi-particle peaks due to many-body excitations, which have been of considerable theoretical a…
cond-mat.mtrl-sci2014★ 38 cited
Cumulant expansion for phonon contributions to the electron spectral function
S. M. Story, J. J. Kas, F. D. Vila +2
We describe an approach for calculations of phonon contributions to the electron spectral function, including both quasiparticle properties and satellites. The method is based on a…
cond-mat.str-el2014
Generalized particle/hole cumulant approximation for the electron Green's function
J. J. Kas, J. J. Rehr, L. Reining
The cumulant expansion is a powerful approach for including correlation effects in electronic structure calculations beyond the GW approximation. However, current implementations a…