About me

I am currently doing my PhD in physics at the MSC laboratory (Université Paris Cité / CNRS) under the supervision of Adrian Daerr. Here is a tentative CV.

Research interests

I am interest in nonlinear phenomena and instabilities in physics, in particular in the context of hydrodynamics.

Academic formation

2022 - Today — PhD in physics

2022 — Admission to Agrégation de Physique : High-level competitive examination for future physics teachers for high school and preparatory classes (rank: 2/459)

2021 — Master’s degree, Applied and Theoretical Mathematics (MATH), specialization Mathematical modeling and macroscopic physics

2017 - 2022 — Physics at Ecole Normale Supérieure (Bachelor in Physics and M1 ICFP), Paris

2017 — Admission to École Normale Supérieure, via competitive exam (rank: 10/390)

Publications

Grégoire Le Lay and Adrian Daerr,
Phase-locking parametric instability coupling longitudinal and transverse waves on rivulets in a Hele-Shaw cell
Physical Review Letters, 134, 014001 (2025) | 10.1103/PhysRevLett.134.014001 | PDF
Communication (in French)

Grégoire Le Lay, Sarah Layani, Adrian Daerr, et al.,
[Editor’s suggestion] Magnetic levitation in the field of a rotating dipole
Physical Review E, 110, 045003 (2024) | 10.1103/PhysRevE.110.045003 | PDF

Tania Gajardo, Mathilde Bernard, Marie Lô, et al.,
Actin dynamics regulation by TTC7A/PI4KIIIα limits DNA damage and cell death under confinement
Journal of Allergy and Clinical Immunology, 152, 4, p949-960 (2023) | 10.1016/j.jaci.2023.06.016

Antoine Gaillard, Jack S. Keeler, Grégoire Le Lay, et al.,
The life and fate of a bubble in a geometrically perturbed Hele-Shaw channel
Journal of Fluid Mechanics, 914, A34 (2021) | 10.1017/jfm.2020.844

Sundary Sormendi, Mathieu Deygas, Anupam Sinha, et al.,
HIF2α is a direct regulator of neutrophil motility
Blood, 137, 24 (2021) | 10.1182/blood.2020007505

Teaching

Waves, Electromagnetism

I gave short courses on waves and on electromagnetism for the Préparation à l’agrégation interne of Université Paris Cité.

Laser

I give tutorials on lasers to students for the 2A Génie Physique at EIDD.

International Physicist’s Tournament

I participate in the training of Université Paris Cité’s team for the french selection of the International Physicists’ Tournament.

IPhO

Member of the scientific committee of selection and training of the French team competing at the International Physics Olympiads.

Outreach

Chaotic waterwheel

I devised a small and portable chaotic waterwheel (Malkus–Lorenz like) to explain dynamical systems and chaos to the general public. Learn more…

Projects

PyPendentDrop

Open-source Python API (shipped with graphical and command line interfaces) to measure surface tension from images of pendent drops.

• Package on PyPI
• Documentation on ReadTheDocs
• Source code on GitHub

Limrendir

Limrendir is a free software that allows for viewing and saving video streams from Genicam compatible cameras using the Aravis library. It is a mashup between Aravis Viewer, which allows for user-friendly interactions with a camera including control and stream visualisation, and gevCapture, which allows for user-unfriendly recording of said stream.
It is coded in C using GTK3. The code is hosted on Github.

Tracktor

Tracktor is a statistical analysis software. It is able to compute many statistical metrics for large tracking datasets and compare the data to existing models. It renders the results in the form of publication-ready figures.
It is coded in C++ using Qt5, and Python.