CompAS 2025

11 Jun 2025, 14:00 → 14 Jun 2025, 22:00 Europe/Stockholm

Lundmark (Science Faculty building)

Tomas Brage (Lunds universitet) , Per Jönsson (Malmö University)

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Computational Atomic Structure Meeting – Lund

Welcome to the official page for the Computational Atomic Structure group meeting in Lund.

Keynote Speaker:
We are honored to welcome Professor and Nobel Laureate Anne l'Huillier, who will give a keynote lecture on Friday afternoon.

Update:
We are pleased to announce that we have secured funding for the Friday dinner! Coffee breaks remain free of charge.
For the Wednesday reception (June 11th), we’ll gather informally at a local pub—participants will cover their own expenses.

Practical Information:
Details on travel to Lund, accommodation, and more can be found on the info page below.

Registration:
Please register as soon as possible. We will do our best to include all participants in the social events (including the dinner), but participation cannot be guaranteed.

Information about CompAS 2025 notice 1.pdf

Wednesday, 11 June

18:00 → 22:00 Reception

Pre-meeting and registration.

Thursday, 12 June

09:00 → 12:50 Session 1

09:00 Opening of CompAS 2025

Speakers: Michel Godefroid, Per Jönsson, Tomas Brage

09:15 GRASP: Recent Code Developments and Applications

Speaker: Ran Si (Fudan University)

09:40 GRASP: Basis Selection by Macnine Learning

Speaker: Shaofan Shi (Fudan University)

10:05 Short Break

10:15 Periodic Table for Highly Charged Ions

Speaker: Chunhai Lyu (Max-Planck-Institute für Kernphysik)

10:40 Current Status of the GRASPC Development. Calculations - Calculations for Electron-Strontium Scattering.

Speaker: Pawel Syty (Gdansk University of Technology)

11:05 Coffee Break

11:25 High-accuracy Laboratory Atomic Spectroscopy for Astrphysics

Speaker: Henrik Hartman (Malmö University)

12:00 Short break

12:10 Radiative data calculations for electric dipole transitions in the Yb I isoelectronic sequence (Ta IV - Pt IX) of interest to nuclear fusion diagnostics

Speaker: Maxime Brasseur (Université de Mons)

12:30 A partitioned correlation function interaction approach in GRASP

Speaker: Sijie Wu (Fudan and Malmö Universities)

12:50 → 14:30 Lunch

14:30 → 17:00 Session 2

14:30 Relativistic Corrections to Electronic Scattering Lengths. Results for Strontium.

Speaker: Michal Pilat (Gdansk University of Technology)

14:55 Second-Order Rayleigh-Schrödinger Perturbation Theory for the GRASP2018 Package: Three-particle Feynman Diagrams Contributions.

Speaker: Gediminas Gaigalas (Vilnius University)

15:20 Coffee break

15:40 Surprising Results from Spectroscopic Analysis of Stars close to the Supermassive Black Hole

Speaker: Brian Thorsbro (Observatoire de la Côte d'Azur)

16:15 short break

16:25 Atomic Data Needs for Non-LTE Modelling of Stellar Spectra

Speaker: Anish Amarsi (Uppsala University)

Friday, 13 June

09:30 → 12:50 Sesson: Session 3

09:30 The Scientific Legacy of Ian Grant

Speaker: Harry Quiney (Melbourne University)

10:10 Short break

10:20 AMBiT methods, applications, tips and tricks.

Speaker: Julian Berengut (UNSW, Sidney)

11:00 Coffee Break

11:20 A Story of Copper - the ultimate inner shell transition metal spectra

Speaker: Chris Chantler (Melbourne University)

12:00 Short break

12:10 Variants of relativistic coupled-cluster methods and their implementation challenges for atomic systems

Speaker: Bijaya Sahoo (Physical Research Laboratory, Navrangpura)

12:50 → 14:00 Lunch

14:00 → 17:00 s: Session 4

14:00 Keynote talk: Photoionization of atoms in the time domain

Speaker: Anne l'Huillier (Lund University)

15:00 Coffee Break

15:20 Accurate Atomic Data for Solar Physics Applications

Speaker: Wenxian Li (National Astronomical Observatories of China)

15:50 Theoretical Study of Electron Dynamics at the Amusia-Cooper Minimum of Argon

Speaker: Rezvan Tahouri (Lund University)

16:20 Short break

16:30 On the use of Natural Orbitals in GRASP Calculations

Speaker: Per Jönsson (Malmö University)

18:30 → 19:30 se: Dinner

Saturday, 14 June

10:00 → 12:10 session: session 5

10:00 GRASP: Ongoing Code Development

11:00 Coffee Break

11:20 Laser Spectroscopy of Stable and Radioactive Negative Ions.

Speaker: Dag Hanstorp (Gothenburg University)

12:00 Closing of CompAS 2025

12:10 → 13:10 Board meeting