Non-perturbative Renormalization Group Approach to Some Out-of-Equilibrium Systems - Diffusive Epidemic Process and Fully Developed Turbulence

This thesis presents the application of non-perturbative, or functional, renormalization group to study the physics of critical stationary states in systems out-of-equilibrium. The first system is the diffusive epidemic process, a stochastic process which models the propagation of an epidemic within a population.