Sökning: "Self-screening correction"

Hittade 1 uppsats innehållade orden Self-screening correction.

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

    Master-uppsats, Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

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

    Sammanfattning : 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. LÄS MER