Speaker
Patricia GONÇALVES
(IST, Lisbon University)
Description
In this talk, I will present a model which was introduced in [1] and
consists of an exclusion process with different types of particles,
let us say types A, B, and C. Depending on the interaction rate
between different types of particles, the limiting fluctuations end up
in different universality classes: either the fluctuations are
governed by energy solutions of the stochastic Burgers equation or by
the Ornstein-Uhlenbeck equation. These results match the predictions
from the non-linear fluctuating hydrodynamics of Spohn, Schutz, and
collaborators. (Joint with G. Cannizzaro; A. Occelli, R. Misturini.)
[1] Schuetz, Wehefritz-Kaufmann: Kardar-Parisi-Zhang modes in
d-dimensional directed polymers, Phys. Rev. E 96, 032119 (2017).
