Special Session 168: Stochastic Analysis and Large Scale Interacting Systems

Critical stationary fluctuations in reaction--diffusion processes
Kenkichi Tsunoda
Kyushu University
Japan
Co-Author(s):    L. Cardoso, C. Landim, K. Tsunoda
Abstract:
We study stationary fluctuations at criticality for a one-dimensional reaction--diffusion process combining symmetric simple exclusion dynamics with Glauber-type spin flips. The strength of the Glauber interaction is tuned to the critical regime in which the quadratic term in the effective potential vanishes. Focusing on the stationary distribution, we show that the total magnetization scaled by $n^{3/4}$ exhibits non-Gaussian fluctuations.