3 papers
cond-mat.mtrl-sci2025
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…
cond-mat.mes-hall2025
Binding and spontaneous condensation of excitons in narrow-gap carbon nanotubes
Giacomo Sesti, Daniele Varsano, Elisa Molinari +1
Ultraclean, undoped carbon nanotubes are observed to be always insulating, even when the gap predicted by band theory is zero: the residual band gap is then thought to have a many-…
cond-mat.mes-hall2022
Anomalous screening in narrow-gap carbon nanotubes
Giacomo Sesti, Daniele Varsano, Elisa Molinari +1
The screening of Coulomb interaction controls many-body physics in carbon nanotubes, as it tunes the range and strength of the force that acts on charge carriers and binds electron…