Workshop
4th Daresbury Questaal School
Overview
The 4th Daresbury Questaal school (postponed from 2020) took place 10-12 May 2022 at Daresbury Laboratory, UK.
Topics covered
- Formal presentation of DMFT as an exact method to solve a local many-body problem; embedding a local Hamiltonian in a nonlocal bath: successes and challenges.
- Solvers for DMFT.
- Two-particle local Green’s functions, and nonlocal response functions.
- Formal presentation of MBPT: the GW approximation and ladder diagrams as the dominant correction.
- Quasiparticle Self-Consistent GW: what it is; why it is needed; successes and limits.
- Combining QSGW and DMFT. Spectral functions, spin, charge, superconducting susceptibilities.
- Use of the Questaal and TRIQS codes.
Practicalities
- The school was sponsored by CECAM (as a Flagship School), CCP9 and Psi-k.
Recordings of selected talks
- Mark van Schilfgaarde, introduction
- Mark van Schilfgaarde, GW and QSGW
- Brian Cunningham, BSE formalism
- François Jamet, DMFT tutorial
- Swagata Acharya, DMFT solvers
Tutorials
Timetable
| Tuesday 10/05/2022 | Wednesday 11/05/2022 | Thursday 12/05/2022 | Friday 13/05/2022 | ||
|---|---|---|---|---|---|
| 08:15 | coach to DL | coach to DL | coach to DL | ||
| 09:00–10:00 | lecture: GW (Mark van Schilfgaarde) | lecture: DMFT 1 (Silke Biermann) | hands-on | ||
| 10:00–10:30 | coffee | coffee | coffee | ||
| 10:30–11:30 | tutorial: QSGW (Mark van Schilfgaarde) | lecture: DMFT 2 (Silke Biermann) | hands-on | ||
| 11:30–12:30 | (arrive) | hands-on | tutorial + hands-on: DMFT (Swagata Acharya) | talk: Quantum Computing (François Jamet) | |
| 12:30–13:30 | lunch | lunch | lunch | (depart) | |
| 13:30–14:30 | welcome & introduction (Mark van Schilfgaarde) | lecture: BSE (Brian Cunningham) | tutorial + hands-on: DMFT (Swagata Acharya) | ||
| 14:30–15:30 | tutorial: lmf (Jerome Jackson) | tutorial: QSGW+BSE (Dimitar Pashov) | lecture: DMFT solvers (Swagata Acharya) | ||
| 15:30–16:00 | coffee | coffee | coffee | ||
| 16:00–17:30 | hands-on | hands-on | lecture + tutorial: cRPA (François Jamet) | ||
| 17:30 | coach to Chester | coach to Chester | coach to Chester | ||
| 18:30–22:00 | conference dinner (Ring of Bells, Chester) |
