Decoupling and decay of two-point functions in a two-species TASEPCRC 1720: Early Career Seminar

by Sabrina Gernholt

Tuesday Apr 14, 2026, 2:15 PM → 3:15 PM Europe/Berlin

Endenicher Allee 60/1-016 - Lipschitzsaal (Mathezentrum)

We study the totally asymmetric simple exclusion process (TASEP) on the integers with first- and second-class particles, a prototypical example of a multicomponent model in the KPZ universality class. Under stationary initial conditions, we investigate the large-time interaction between two natural marginal processes: those consisting of first-class and of all particles. We establish their asymptotic decoupling at the level of height functions and two-point functions, thereby confirming predictions of nonlinear fluctuating hydrodynamics. The talk is based on joint work with Patrik Ferrari, available at arXiv:2504.00765.