Year: 2011
Type: article
Abstract: Reaction–diffusion systems with reversible reactions generically display power-law relaxation toward chemical equilibrium. In this work we investigate, through numerical simulations, ageing processes that characterize the non-equilibrium relaxation. Studying a model which excludes multiple occupancy of a site, we find that the scaling behaviors of the two-time correlation and response functions are similar to that discovered previously in an exactly solvable version with no restrictions on the occupation numbers. In particular, we find that the scaling of the response depends on whether the perturbation conserves a certain quantity or not. Our results point to a high degree of universality in relaxation processes taking place in diffusion-limited systems with reversible reactions.
Authors: Nasrin Afzal, Justin Waugh, Michel Pleimling
Institutions: Virginia Tech, University of Colorado Boulder
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2013665603