This text is centred on two minicourses on the return to equilibrium in classical statistical mechanics and the location of quantum resonances via semiclassical analysis. The other contributions cover topics such as scattering theory, dynamical localization, quantum chaos, and more.

Return to equilibrium in classical and quantum systems, C. Liverani; quantum resonances and trapped trajectories, J. Sjostrand; return to thermal equilibrium in quantum statistical mechanics, V. Bach; small oscillations in some nonlinear PDEs, D. Bambusi and S. Paleari; the semi-classical Van-Vleck formula -application to the Aharonov-Bohm effect, J.-M. Bily and D. Robert; fractal dimensions and quantum evolution associated with sparse potential Jacobi matrices, J.-M. Combes and G. Mantica; infinite step billiards, M.D. Esposti; semiclassical expansion for the thermodynamic limit of the ground state energy of Kac's operator, B. Halffer and T. Ramond; asymptotics of scattering poles for two strictly convex obstacles, M. Ikawa; parabolic dynamical systems and inducing, S. Isola; QFT for scalar particles in external fields on Riemannian manifolds, H. Isozaki; existence and Born-Oppenheimer asymptotics of the total scattering cross-section in ion-atom collisions, T. Jecko et al; on asymptotic perturbation theory for quantum mechanics, G. Nenciu; destruction of the beating effect in a periodically driven double-well, A. Sacchetti; Berezin-Toeplitz quantization and Berzein transform, M. Schlichenmaier.