Munich (Germany), 2025, 30 January
Electrons and phonons are basic concepts, considered as the most elemental and well defined example of fermions and bosons. So it may appear that their formal properties are clear and well established. In reality, despite books and reviews the theory of electron-phonon interaction (EPI) is still very much debated. The reason is mostly historical. Indeed the state-of-the art theoretical and numerical approach to the EPI has been built on top of two popular methods: model Hamiltonians and Density Functional Perturbation Theory (DFPT).
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In the seminar scheduled on Thursday, January 30, 2025 at 1:00 pm, at the Tecnische Universität München (TUM School of Natural Sciences, Department of Chemistry) Dr. Andrea Marini will, in particular, demonstrate that it is possible to derive an effective vertex correction function that can be easily defined using simple ingredients and used to amend calculations based on the statically screened approximation.