I am a theoretical physicist at the Institut de Physique Théorique (IPhT), CEA-Saclay. My research sits at the intersection of string theory, quantum field theory, and modern mathematics — with a particular focus on computing scattering amplitudes and Feynman integrals using tools from algebraic geometry, number theory, and the theory of D-modules. I am especially interested in how the geometry of Feynman integrals, viewed as relative periods of mixed Hodge structures, connects to mirror symmetry, automorphic forms, and motives. A parallel line of work concerns the application of amplitude methods to classical gravity and gravitational-wave physics.
Current activities
-
Elected member of the CoNRS Section 05 : Physique théorique : méthodes, modèles et applications
-
Séminaire Poincaré (Bourbaphy) — scientific committee member
-
Prix Cosmos — popular science book prize connecting high-school students with authors
-
Observables — ANR research project on computing observables in gauge theory and gravity from amplitude methods
-
Feynman integrals — a curated list of Feynman integrals I have evaluated analytically
Research interests
My work is devoted to understanding gravity through string theory, quantum field theory, and advanced mathematics. Central themes include:
- Feynman integrals and periods — analytic evaluation of multi-loop integrals via Picard-Fuchs equations, mixed Hodge structures, and motivic geometry (sunset integral with Spencer Bloch)
- Automorphic forms in string theory — emergence of automorphic forms in the low-energy expansion of string amplitudes, with M. B. Green, S. D. Miller, and J. Russo (AMS account)
- Scattering amplitudes and gravitational waves — using amplitude techniques to compute post-Minkowskian observables and quantum corrections to classical gravity (quantum bending of light)
- Gauge–gravity relations — unexpected simplifications connecting gravity amplitudes to gauge theory
Я — физик-теоретик. По-настоящему меня интересуют только неразгаданные явления. В этом и состоит моя работа. — Л. Д. Ландау