Highlights

Here, you can find some selected highlights of my research and outreach activities.

  • 20-01-2025

    A precision test of general relativity

    Combining different cosmological observables can be a powerful way of testing physics beyond the standard model of cosmology. More specifically, in my recent first-author publication in Physical Review Letters, I have demonstrated how measurements of galaxy velocities and of the Weyl potential can be combined to reconstruct the so-called EG statistic as a robust test of gravity. This new method for measuring the EG statistic significantly surpasses the precision of previous literature values.

    Click here for the report published by my University
  • 20-11-2024

    Media attention for the Weyl potential evolution

    In a recent Nature Communications paper, we have presented a measurement of the Weyl potential evolution from the first three years of Dark Energy Survey data. This novel observable offers promising prospects to test Einstein's law of general relativity at the scales of our cosmos, a topic which the general public seems to be quite curious about: our results have been shared by ScienceDaily (English), RTS (French), Focus Online and Der Standard (German), and many more!

    Click here for the University press release
  • 24-04-2024

    Outreach talk at Institut International de Lancy

    I had the pleasure to give an outreach talk at the Institut International de Lancy in the context of the International Day of Women and Girls in Science. The goal was to explain some key concepts, such as why we know that the Universe is expanding. I very much enjoyed the interactions with the pupils, in particular the interview for the school web radio that they invited me to do. If you would like me to give an outreach talk at your school or organization, feel free to contact me, and I will try to fit it into my schedule!

    Click here for my interview in the school web radio
  • 03-04-2024

    New outreach video on the Weyl potential evolution

    In a new video on the Cosmic Blueshift YouTube channel, we (my collaborator Isaac Tutusaus, my boss Camille Bonvin, and I) explain our newest work on the Weyl potential evolution, and model-independent measure to test the laws of gravity at cosmological scale. We find a mild tension of 2.8 sigma with the standard cosmological model. What does all of this mean, and what do we expect from future surveys? Check our video to find out more (it's in French, but English subtitles are available).

    Click here to find our outreach video