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Matthieu Schaller

I am an assistant professor in numerical cosmology at the Lorentz Institute for theoretical physics and Leiden Observatory, where I work on the development and analysis of cosmological simulations.

My research focuses the development of numerical simulation tools for cosmology and astrophysics, mainly the SWIFT code and associated packages, as well as the preparation, running, and analysis of galaxy formation and cosmology simulations, such as the EAGLE, SIBELIUS, FLAMINGO, and COLIBRE projects.

Interest in large-scale magnetic fields, magnetogenesis, baryon effects on late-time cosmology probes, astrophyiscal probes of the nature of dark matter, galaxy formation and evolution, numerical methods, fluid dynamics, high-performance computing & cheese.

Member of Euclid, ARRAKIHS, 4HS & Virgo consortium

Email  --  Phone  --  CV  --  ADS / SciX  --  Google Scholar   
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Research
Group members

  • Rob McGibbon (Research software engineer, jointly with Joop Schaye)

Teaching

I lecture the Computational Physics Course (A and B) as part of the master program in physics (6EC total).

I am also part of the teaching team for the master-level course Physics of Machine Learning (6EC) for physics and astronomy students as well as of the bachelor-level course Kosmologie - waar komen we vandaan? (5EC) included in the minor program in physics for non-physicists.

Former students and group members

  • Bert Vandenbroucke (Research software engineer, jointly with Joop Schaye, 2021-2022)
  • Joey Braspenning (PhD student, co-supervised with Joop Schaye, 2020-2025)
  • Roi Kugel (PhD student, co-supervised with Joop Schaye, 2020-2025)
  • Evgenii Chaikin (PhD student, co-supervised with Joop Schaye, 2019-2023)
  • Zorry Belcheva (PhD student, co-supervised with Joop Schaye, 2021-2023)
  • Folkert Nobels (PhD student, co-supervised with Joop Schaye, 2018-2023)
  • Josh Borrow (PhD student, co-supervised with Richard Bower, 2017-2021)
  • Kristian Melecio (master student, 2025-2026, co-supervised by Piyush Sharda & Ruby Wright @ ICRAR)
  • Naomi Schutte (master student, 2025-2026, co-supervised by Jeger Broxterman)
  • Timo Marchand (master student, 2025)
  • Marco Leonardi (master student, 2024-2025, co-supervised by Will Roper @ Sussex)
  • Maarten Elion (master student, 2024-2025, co-supervised by Nikyta Shchutskyi)
  • Ivan Ridkokasha (master student, 2024, co-supervised by Orestis Karapiperis)
  • Marco van der Ploeg (master student, 2024, co-supervised by Nikyta Shchutskyi)
  • Annet Konings (master student, 2024)
  • Stan Verhoeve (master student 2023-2024, co-supervised by Mladen Ivkovic @ Durham)
  • Diederick Vroom (master student 2023-2024)
  • Lea Krarup (master student, 2023-2024)
  • Lieuwe de Regt (master student, 2023)
  • Juliette Hilhorst (master student, 2022-2023)
  • Michel Kaverman (master student, 2023)
  • Laurens Schinkelshoek (master student, part-time LUMC, 2021-2023)
  • Tinatin Tsiskaridze (master student, 2023)
  • Lorenzo Filipello (master student, 2022)
  • Ernst Traanberg (master student, 2022)
  • Raul Wolters (master student, 2022)
  • Zhen Xiang (master student, 2021-2022)
  • Shiyang Zhang (master student, 2022)
  • Barbara Levering (master student, 2020-2021)
  • Qing Zhou (master student, 2019-2020)
  • Benthe Sturre (bachelor student, 2025)