activity
19982026
most citedAb initio calculation of excitonic effects in the optical spectra of semiconductors

962 citations · 3.9k across the 50 of their papers we have counts for

collaborators

51 papers

cond-mat.str-el2026

Consistent perturbation expansions in screened interactions

Abdallah Arthur El Sahili, Francesco Sottile, Lucia Reining

Many-body perturbation theory is a powerful framework to calculate spectroscopic quantities, as well as the total energy. However, the field suffers from the fact that different fl…

cond-mat.mtrl-sci2025

Trends in the electronic structure of borophene polymorphs

Alam Osorio, Lucia Reining, Francesco Sottile

Borophene is a two-dimensional material made out of boron atoms only. It exhibits polymorphism and different allotropes can be studied in terms of a rigid electronic structure, whe…

cond-mat.str-el2023

Total energy beyond GW : exact results and guidelines for approximations

Abdallah El-Sahili, Francesco Sottile, Lucia Reining

The total energy and electron addition and removal spectra can in principle be obtained exactly from the one-body Green's function. In practice, the Green's function is obtained fr…

cond-mat.mtrl-sci2023

Exciton band structure of VO

Vitaly Gorelov, Lucia Reining, Matteo Gatti

Excitonic effects due to the correlation of electrons and holes in excited states of matter dominate the optical spectra of many interesting materials. They are usually studied in…

cond-mat.str-el2023★ 6 cited

Short-range excitonic phenomena in low-density metals

Jaakko Koskelo, Lucia Reining, Matteo Gatti

Excitonic effects in metals are commonly supposed to be weak, because the Coulomb interaction is strongly screened. We investigate the low-density regime of the homogeneous electro…

cond-mat.mtrl-sci2022★ 7 cited

Robustness of electronic screening effects in electron spectroscopies: example of VO

Vitaly Gorelov, Lucia Reining, Walter R. L. Lambrecht +1

In bulk and low-dimensional extended systems, the screening of excitations by the electron cloud is a key feature governing spectroscopic properties. Widely used computational appr…