Since 2003 Full Professor at EPFL (Switzerland)

2000-2003 Full Professor at Lausanne University (Switzerland)

1993-2000 Research associate, CNRS (National Center for Scientific Research), Toulouse (France)

1991-1993 Post-doc with Professor H. Beck, Neuchâtel University (Switzerland)

1989-1991 Post-doc with Professor E. Abrahams, Rutgers University (USA)

1987-1989 Post-doc with Professor T. M. Rice, ETH-Zurich (Switzerland)

1984- 1987 PhD in Condensed Matter Physics with Professor J. Szeftel, Nuclear Research Center, Saclay (France)
   - Title: Theoretical contribution to the investigation of structural and vibrational properties of surfaces and interfaces

1983-1984 Advanced Degree of Solid State Physics (1st year of Graduate School), Orsay University (Paris, France)

1980-1983 Ecole Polytechnique (Paris)

Summary of research achievements and activities:
  - Conducted research in several domains of condensed matter theory, including surface
physics, high-Tc superconductors, and magnetism of strongly correlated materials.
  - Keywords of current research: Strongly correlated electrons, Heisenberg model, frustrated
magnetism, spin liquids, orbital degeneracy, spin chains, cold atoms.
  - Over 300 publications including 1 Science, 1 Nature, 1 Nature Physics (News and Views), 6 Nature Communications, and 61 Phys. Rev. Lett. More than 17'200 citations and h-index=67 (Google scholar), resp. 11'100 citations and h-index=57 (Web of Science).
  - Co-editor of the reference book on frustrated magnetism "Introduction to Frustrated Magnetism" (Springer Series in Solid-State Sciences 164, Springer, 2011).
  - Supervision of 23 post-docs and 18 graduate students (15 already successfully completed).
  - Regular invited talks at international conferences and workshops (on average 6 per year over the last years, 191 altogether).
  - Taught several undergraduate and graduate courses in theoretical and condensed matter physics since 2000.
  - Member of the steering committee of the \Highly Frustrated Magnets" program of
ESF (European Science Foundation) from 2005 through 2011.
  - Member of the MaNEP (Swiss National Center of Competence in Research on Materials with Novel Electronic Properties) since 2001.
  - Organization of several summer schools and workshops, including a 3-week program of the ICTP (International Center of Theoretical Physics supported by UNESCO), Trieste (Italy) in 2007.
  - President of the Doctoral Program in Physics of the CUSO (consortium of the universities of western Switzerland) from 2010 through 2012.
  - Director of the Doctoral Program of Physics of EPFL between 2018 and 2024.
  - Referee for several journals including Science, Nature, Nature Physics, Physical Review Letters, Physical Review B.
  - Associate editor of The European Physical Journal B between 2001 and 2008.
  - Co-editor of Europhysics Letters between 2008 and 2015.
  - Member of the editorial board of "Physical Review B" between 2014 and 2019.
  - Awarded in 2007 a Chaire d'Excellence Pierre de Fermat, a competitive French program for visiting scientists.
  - Awarded the 2024 Charpak-Ritz Prize of the French and Swiss Physical Societies.

- Frustrated magnetism
- Tensor networks
- One-dimensional quantum physics