10 citations · 12 across the 2 of their papers we have counts for
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Quasiparticle Calculations for Point Defects on Semiconductor Surfaces
Magnus Hedstrom, Arno Schindlmayr, Matthias Scheffler
We discuss the implementation of quasiparticle calculations for point defects on semiconductor surfaces and, as a specific example, present an ab initio study of the electronic str…
Self-consistency and vertex corrections beyond the GW approximation
Arno Schindlmayr
The good performance of the GW approximation for band-structure calculations in solids was long taken as a sign that the sum of self-energy diagrams is converged and that all omitt…
Diagrammatic self-energy approximations and the total particle number
Arno Schindlmayr, P. Garcia-Gonzalez, R. W. Godby
There is increasing interest in many-body perturbation theory as a practical tool for the calculation of ground-state properties. As a consequence, unambiguous sum rules such as th…
Exchange-correlation kernels for excited states in solids
Krzysztof Tatarczyk, Arno Schindlmayr, Matthias Scheffler
The performance of several common approximations for the exchange-correlation kernel within time-dependent density-functional theory is tested for elementary excitations in the hom…
Decay properties of the one-particle Green function in real space and imaginary time
Arno Schindlmayr
The decay properties of the one-particle Green function in real space and imaginary time are systematically studied for solids. I present an analytic solution for the homogeneous e…
Spectra and total energies from self-consistent many-body perturbation theory
Arno Schindlmayr, Thomas J. Pollehn, R. W. Godby
With the aim of identifying universal trends, we compare fully self-consistent electronic spectra and total energies obtained from the GW approximation with those from an extended…