Ageing in the contact process: Scaling behavior and universal features
Statistical Mechanics
2011-02-16 v1 High Energy Physics - Theory
Abstract
We investigate some aspects of the ageing behavior observed in the contact process after a quench from its active phase to the critical point. In particular we discuss the scaling properties of the two-time response function and we calculate it and its universal ratio to the two-time correlation function up to first order in the field-theoretical epsilon-expansion. The scaling form of the response function does not fit the prediction of the theory of local scale invariance. Our findings are in good qualitative agreement with recent numerical results.
Keywords
Cite
@article{arxiv.cond-mat/0610260,
title = {Ageing in the contact process: Scaling behavior and universal features},
author = {Florian Baumann and Andrea Gambassi},
journal= {arXiv preprint arXiv:cond-mat/0610260},
year = {2011}
}
Comments
20 pages, 3 figures