Electron-Electron and Electron-Phonon Interactions in Semiconductors and Insulators from Many-Body Perturbation Theory

Han Yang
An accurate description of the electronic structure of semiconductors and insulators is essential in materials discovery. However, the Schrodinger equation[124] of many-body systems, e.g., electrons in solids or molecules, cannot be solved exactly. Many approaches have been proposed to solve approximately the Schrodinger equation of interacting electrons, and new methods and algorithms are still being developed to improve the efficiency and accuracy of the calculations, and/or to incorporate new physics.This dissertation focuses on the developments...
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