G
Giancarlo Cappellini
Researcher at University of Cagliari
Publications - 94
Citations - 1914
Giancarlo Cappellini is an academic researcher from University of Cagliari. The author has contributed to research in topics: Density functional theory & Quasiparticle. The author has an hindex of 19, co-authored 94 publications receiving 1659 citations. Previous affiliations of Giancarlo Cappellini include INAF & Fondazione Ugo Bordoni.
Papers
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Third-order three-wave mixing in single-mode fibers: exact solutions and spatial instability effects
TL;DR: In this article, the steady-state coupled-mode equations that govern the nonlinear parametric interaction of a central-frequency wave with a pair of upshifted and downshifted sidebands in isotropic single-mode optical fibers are presented.
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Electronic and optical properties of families of polycyclic aromatic hydrocarbons: A systematic (time-dependent) density functional theory study
TL;DR: In this article, a comparative study of the electronic, optical, and transport properties of polycyclic aromatic hydrocarbons (PAHs) in their crystalline state is presented.
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Model dielectric function for semiconductors.
TL;DR: A model for the dielectric function of semiconductors is presented that allows one to deduce an analytical expression for the Coulomb-hole part of the static self-energy operator.
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An efficient method for calculating quasiparticle energies in semiconductors
TL;DR: In this article, a method for the efficient calculation of the electronic structure of semiconductors within the GW approach is presented, which approximately includes dynamical screening and local field effects, previously disregarded in simplified GW approaches, without increasing the computational effort.
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Time-dependent density functional study of the electronic spectra of oligoacenes in the charge states −1, 0, +1, and +2
TL;DR: In this article, the authors used density functional theory (DFT) to obtain the ground-state optimised geometries, and time-dependent DFT to evaluate the electronic absorption spectra.