Beyond the single particle - strongly correlated systems
Date: April 13 - 15, 2026 Venue: Zoom event
We invite you to participate in a three-day workshop: “Beyond the single particle - strongly correlated systems”. How light interacts with matter can be a challenging problem, becoming all the more true when in strongly correlated systems. In this workshop, you will be introduced to a metal oxide system (NiO) and learn how to calculate optical absorption spectra.
Over three lectures, you will learn how to treat such complicated systems. In the first, after a recap of second quantisation and GW, the constrained random phase approximation (cRPA) is introduced to calculate screened Coulomb repulsion parameters for use in density functional theory plus the Hubbard U parameter (DFT+U) calculations. We will also highlight recent developments in VASP. In the following lecture, single-particle excitations will be discussed, covering the theory of DFT+U and applying it to strongly correlated systems. This will set the stage for an introduction to DFT+DMFT, where we will use VASP together with TRIQS to perform such calculations. The final lecture will then round things off by covering two-particle excitations in the form of the Bethe-Salpeter equation (BSE) and time-dependent density functional theory (TDDFT).
These three lectures will be followed by Q&A sessions to further your understanding. Alongside each lecture, there will be an accompanying hands-on session where you apply the methods introduced in the lectures (cRPA, DFT+U, DMFT, BSE, and TDDFT), as well as discuss your research problems with members of the VASP Team.
This workshop will assist you in studying strongly correlated systems.
For those interested in preparing in advance, there is a lecture covering GW and Optics playlist on our YouTube channel.
Registration opens on March 16, 2026. Please save the date because the number of spots is limited.