I am broadly interested in probability theory and mathematical physics. I specialise in the analysis of lattice models, which is a branch of statistical mechanics. My recent work focusses on the the study of discrete height functions in two dimensions. This branch of research finds applications in the XY model and its Berezinskii-Kosterlitz-Thouless phase transition, the six-vertex model, and the random-cluster model (including the percolation model).

News and announcements

  • Preprint “Free energy analyticity of the disordered XY model and Debye screening in the 2D Coulomb gas”
    27 March 2026

    Lucas D'Alimonte and I uploaded a manuscript of our project on the 2D XY and Villain models and the relationship with the Coulomb gas to arXiv. We prove that the XY and Villain models are finite factors of i.i.d. with exponential volume tails in the disordered phase, which implies a strong form of Debey screening.

  • Preprint “Gaussian free field convergence of the six-vertex model with Delta between -1 and -1/2”
    6 March 2026

    Hugo Duminil-Copin, Ioan Manolescu, Karol Kozlowski, and I uploaded a manuscript of our project “Gaussian free field convergence of the six-vertex model with Delta between -1 and -1/2” to arXiv.

  • Meeting Geometric Methods in Percolation and Spin Models
    2-13 March 2026, ICTS, Bengaluru, India

    ICTS Conference on Geometric Methods in Percolation and Spin Models 2026

    Subhajit Goswami, Trishen Gunaratnam, and I are organising a spring school and workshop on Geometric Methods in Percolation and Spin Models at the ICTS in Bengaluru, India. See the website for more details.

  • Inhomogeneous Random Systems conference at IHP (Paris)
    27-28 January 2026

    Two-day conference organised by Christian Maes, Kirone Mallick, and Ellen Saada. I moderated the first day.

Cours Peccot

I recently taught a Cours Peccot at Collège de France (see the videos below).

Recent talks

One World Mathematical Physics Seminar of the IAMP (Apr 2026, One World IAMP Mathematical Physics Seminar)
Workshop on Topological Phase Transition and Localization of Random Fields (Dec 2025, Center for Mathematical Modeling, University of Chile)
Probability seminar, University of Bath (Sep 2025, University of Bath)
Trimester Program: Probabilistic methods in quantum field theory (Jul 2025, Hausdorff Research Institute for Mathematics, Bonn)
Probability Seminar (Jun 2025, Beijing International Center for Mathematical Research)
Workshop on mathematical physics (Feb 2025, SwissMAP Research Station)
Workshop on statistical mechanics at UNIGE (Jan 2025, University of Geneva)
Mini-Workshop: Critical Phenomena of the XY Model (Nov 2024, Oberwolfach)
Bangalore Probability Seminar (Oct 2024, Online)
Séminaire de probabilités (Oct 2024, Aix Marseille Université)

Contact details

Visiting address
Office 16-26.108
LPSM, Sorbonne Université
Campus Pierre et Marie Curie
4, place Jussieu
75005 Paris
France
Mail address
LPSM, Sorbonne Université
Campus Pierre et Marie Curie
Case courrier 158
4, place Jussieu
75252 Paris CEDEX 05
France
Email address