5 papers
Plasmonic properties and correlation energies from a compact multipole representation of the dielectric response in 2D metals
Dario A. Leon, Claudia Cardoso, Kristian Berland
Multipole-Padé approximants provide a compact representation of dynamical response functions in terms of a small number of collective modes. Here, we generalize this framework to i…
Benchmarking the plasmon-pole and multipole approximations in the Yambo Code using the GW100 dataset
M. Bonacci, D. A. Leon, N. Spallanzani +4
Verification and validation of electronic structure codes are essential to ensure reliable and reproducible results in computational materials science. While density functional the…
Bulk plasmons in elemental metals
Dario A. Leon, Claudia Cardoso, Kristian Berland
The spectral properties, momentum dispersion, and broadening of bulk plasmonic excitations of 26 elemental metals are studied from first principles calculations in the random-phase…
A viable and accurate route to GW simulations of metals and doped semiconductors
Giacomo Sesti, Alberto Guandalini, Andrea Ferretti +4
In this work we present an efficient and fully ab-initio approach for the calculation of the screened Coulomb potential, specifically designed for two dimensional (2D) and three di…
Spectral properties from an efficient analytical representation of the self-energy within a multipole approximation
Dario A. Leon, Kristian Berland, Claudia Cardoso
We propose an efficient analytical representation of the frequency-dependent self-energy via a multipole approximation (MPA-). The multipole-Padé model for the self-ene…