Portrait of Stéphanie Chaillat-Loseille
Stéphanie Chaillat-Loseille

CNRS Research Director

Deputy Director, POEMS

Research profile

A major objective of my work is to move beyond idealized model problems towards realistic wave propagation simulations, including heterogeneous media, multiple scattering, and coupled acoustic–elastic configurations. I combine expertise in mathematical analysis, numerical methods and high-performance scientific computing to advance computational mechanics, with applications ranging from seismic wave propagation to underwater acoustics and flow-induced noise, in collaboration with academic and industrial partners.

More recently, I have been exploring machine-learning and operator-learning approaches to accelerate large-scale wave simulations while preserving the structure and accuracy of classical numerical methods.

Current positions and responsibilities

  • Deputy Director of the POEMS laboratory, CNRS–Inria–ENSTA joint research unit (2025–).

  • CNRS Research Director, POEMS, Institut Polytechnique de Paris (2023–).

  • Vice-President, French Computational Structural Mechanics Association (CSMA) (2024–).

  • Executive Board member, International Association for Boundary Element Methods (IABEM) (2024–).

  • Editorial boards: Advances in Computational Mathematics (ACOM) and Journal of Theoretical, Computational and Applied Mechanics (JTCAM).

  • Member of the Open Science Advisory Board, Institut Polytechnique de Paris.

From 2022 to 2024, I was an Adjunct Faculty member in the Department of Geophysics at Stanford University. Before joining CNRS, I was a Postdoctoral Associate at the College of Computing, Georgia Tech. I received my PhD in Mechanical Engineering from École Polytechnique.

Research programme

My research combines mathematical analysis, numerical-method development and the in-house development of high-performance simulation codes. I work on boundary element methods, fast algorithms and domain decomposition methods for wave problems, with long-term collaborations in underwater acoustics, seismology and computational mechanics. See Collaborations for current projects and partnerships.

Prospective students

I welcome enquiries from prospective PhD students and postdoctoral researchers interested in computational mechanics, wave propagation and numerical methods. Please get in touch to discuss current opportunities.

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