First-principles calculations of phonons are often based on the adiabatic approximation and
on Brillouin-zone samplings that might not always be sufficient to capture the subtleties of …

This work gives an overview of the non-equilibrium Green function (NEGF) technique in
quantum field theory by using Langreth's method. The difference between the diagrammatic …

State-of-the-art model Hamiltonians, like Fr\" ohlich's, or density functional theory
approaches to electron-phonon interaction suffer from a severe overscreening error. This is …

Les signatures de l'existence des phonons sont omniprésentes dans les propriétés des
matériaux. En première approximation, on peut scinder l'effet des phonons sur la structure …

We investigated the effect of confined energy on Coulomb blockade phenomena (also
known as a quantum Coulomb blocked phenomena). We showed that the operation …