This edition of the correlation meeting takes place at the Ecole Polytechnique, 25-26 November 2025.
[This meeting will be followed by the ETSF RTL's meeting on 27 November].
This discussion meeting is dedicated to the first-principles treatment of electronic correlation, aiming to assess the true limit of current approaches, identify common "grand challenges", and stimulate further developments.
Following our tradition, the meeting will consist of short talks (≈10 minutes) proposed by participants, followed by longer (up to 1 hour) discussions.
In the International Year of Quantum Science, we will particularly discuss specific aspects of electron correlation:
- excitons, coherent superposition of many-body quantum states, and their (de-)localization
- non-classical observables, pair densities and density matrices
- virtual excitations, both in dynamical screening and in emergent resonant spectroscopies
- non-locality in the response function and connection to quantum weights and Fisher information
| Tuesday 25 | Wednesday 26 | Thursday 27 | |
|---|---|---|---|
| 9:30 | Emmanuel Fromager Quantum embedding theory for strongly correlated electrons | Jannis Kocklaeuner/Abdallah El Sahili Finite screening of core level shake-up satellites in molecules | |
| 10:30 | caffeine break | caffeine break | caffeine break |
| Christopher Coveney Uncovering relationships between the electronic self-energy and coupled-cluster doubles theory | Michele Casula Superconductivity at high temperature and pressure | ||
| 12:30 | lunch | lunch | lunch |
| 14:00 | Pina Romaniello Multi channel Green's Functions | Free Discussion | |
| 15:30 | tea break | tea break | |
| Christoph Friedrich Efficient all-electron implementation of the Bethe-Salpeter equation using crystal symmetries | |||
| 19:00 | Dinner | ETSF RTLs Dinner |
Organisers: Matteo Gatti, Vitaly Gorelov, Lucia Reining, Pina Romaniello, Francesco Sottile.
Practical info:
- suggested hotel: Tulip Inn Massy Palaiseau
How to reach the place:
How to reach us:
The event takes place in the BEM (Bâtiment Enseignement Mutualisé) building (see below for a map), 3rd floor (Room 4006). You can reach Palaiseau via RER B. You can either:
- Get off at Lozère
- Take the Sentier de l'Ecole Polytechnique and walk up to the campus (5 minutes for trained walkers, 15 min for old folks :-).
- Follow the map below for the last few hundred meters.
- Get off at Massy-Palaiseau
- Take the Bus 4606 or 5154 and get off at Polytechnique-Lozere stop (8 minutes).
- Follow the map below for the last few hundred meters.
List of participants:
- Matteo Gatti (Polytechnique)
- Vitaly Gorelov (Polytechnique)
- Lucia Reining (Polytechnique)
- Pina Romaniello
- Francesco Sottile (Polytechnique)
- Silvana Botti
- Olivia Pulci
- Christoph Friedrich
- Claudio Attaccalite
- Giorgia Fugallo
- Hansi Weissker
- Margherita Marsili
- Matthieu Verstraete
- Eberhard Gross (Polytechnique)
- Stefan Kurth
- Roberto D'Agosta
- Letizia Chiodo
- Lorenzo Sponza
- Simona Achilli
- Giovanni Onida
- Jannis Kocklaeuner
- Myrta Grüning
- Abdallah Arthur El Sahili
- Guido Fratesi
- Claudia Draxl
- Emma Nogue
- Emmanuel Fromager
- Michele Casula
- Christopher Coveney
- Maria Hellgren
- Domenico Corona
- Caja Annweiler
- Gian-Marco Rignanese
- Christine Giorgetti (Polytechnique)
- Fatema Mohamed (Polytechnique)
- Marc Aichner (Polytechnique)
- Ilayda Ashgar (Polytechnique)
- Sarbajit Dutta (Polytechnique)
- Jean Goossaert (Polytechnique)
- Andrea Cucca (Polytechnique)
- Dick Douma (Polytechnique)
Lunches and Dinner:
Lunches (and the Dinner on Tuesday 25) will take place at the Restaurant 19, at walking distance from the Meeting place (see map below). The RTLs Meeting instead will start on Wednesday 26, with a dinner at the Palais de l'Himalaya, 271 rue de Paris Palaiseau (close to the RER B station Palaiseau-Villebon).
