De Newton à Boltzmann, fluctuations et grandes déviations
Isabelle GALLAGHER
ENS Paris
I will report on a recent work, joint with Th. Bodineau, L. Saint-Raymond and S. Simonella, in which we develop a rigorous theory of macroscopic fluctuations for a hard sphere gas outside thermal equilibrium, in the Boltzmann-Grad limit: in particular we study deviations from the Boltzmann equation (describing the asymptotic dynamics of the empirical density) and provide, for short kinetic times, both a central limit theorem and large deviation bounds.
IMAGES
Instabilité d'un tourbillon stratifié incliné (plus de détails...)
CONFÉRENCES
2nd European Fluid Dynamics Conference, Dublin, Ireland, 26 Août 2025