Essays about: "Self-screening"

Found 1 essay containing the word Self-screening.

  1. 1. The self-screening correction to RPA and GW – A model and ab initio study

    University essay from Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Author : Viktor Christiansson; [2019]
    Keywords : GW approximation; GWA; Random-Phase-Approximation; RPA; Self-screening; Self-screening correction; Beyond RPA; Beyond GW; Physics and Astronomy;

    Abstract : The self-screening error in the GW approximation is studied by applying correction schemes beyond the random-phase approximation in model and ab inito calculations. Two model systems in the form of Hubbard dimers, with one and two orbitals per site respectively, are considered. READ MORE