A large deviation principle for empirical measures on Polish spaces: Application to singular Gibbs measures on manifolds

David García Zelada

Published 2017-03-08Version 1

We prove a large deviation principle for a sequence of point processes defined by Gibbs probability measures on a Polish space. This is obtained as a consequence of a more general Laplace principle for the nonnormalized Gibbs measures. We consider three main applications: Conditional Gibbs measures on compact spaces, Coulomb gases on compact Riemannian manifolds and the usual Gibbs measures in the Euclidean space. Finally, we study the generalization of Fekete points and prove the convergence of the empirical measures to the minimizer of the energy if it is unique. The approach is partly inspired by the works of Dupuis and co-authors. It is remarkably natural and general compared to the usual strategies for singular Gibbs measures.