PDEA Seminar: Cluster expansion for strongly correlated fermionic trial states
- Date
- 11 November 2025, 10:15–11:00
- Location
- Ångström Laboratory, 64119 + Zoom
- Type
- Seminar
- Lecturer
- Asbjørn Lauritsen (Université Paris-Dauphine),
- Organiser
- Matematiska institutionen
- Contact person
- Kaj Nyström
Asbjørn Lauritsen (Université Paris-Dauphine) gives this seminar. Welcome!
Abstract: I will present formulas for the reduced densities of fermionic Jastrow type trial states arising from a cluster expansion known as the Gaudin--Gillespie--Ripka (GGR) expansion. Using such formulas, we were recently able to give precise upper bounds for the energies of hard-sphere interacting Fermi gases. I will discuss the GGR expansion and our analysis of its convergence. Joint with Robert Seiringer.
Participate on site or via Zoom link, meeting ID: 67226102216. Ensure Zoom access by contacting the organisers in advance.
This is a seminar in the PDEs and Applications seminar series.