Anomalous diffusion of critical polymers

Recent results link the occurrence of non-Gaussian diffusion to the physics of polymers near their critical point. Indeed, polymer size fluctuations in the grand canonical ensemble become under critical conditions an important second source of noise which adds to the solvent collisions, responsible for ordinary diffusion processes. After understanding the physical mechanisms underlying the anomalous diffusion of the polymer center of mass, this thesis aims at implementing simulations techniques potentially capable to extend present knowledge, considering, e.g., the effect of a gravitational field on the polymer motion.