{ "id": "cond-mat/0502271", "version": "v1", "published": "2005-02-10T21:40:30.000Z", "updated": "2005-02-10T21:40:30.000Z", "title": "Dynamic Heterogeneity in the Glauber-Ising chain", "authors": [ "Peter Mayer", "Peter Sollich", "Ludovic Berthier", "Juan P. Garrahan" ], "comment": "18 pages, 4 figures", "journal": "J. Stat. Mech. (2005) P05002", "doi": "10.1088/1742-5468/2005/05/P05002", "categories": [ "cond-mat.stat-mech" ], "abstract": "In a recent paper [P. Mayer et al., Phys. Rev. Lett. 93, 115701 (2004)] it was shown, by means of experiments, theory and simulations, that coarsening systems display dynamic heterogeneity analogous to that of glass formers. Here, we present a detailed analysis of dynamic heterogeneities in the Glauber-Ising chain. We discuss how dynamic heterogeneity in Ising systems must be measured through connected multi-point correlation functions. We show that in the coarsening regime of the Ising chain these multi-point functions reveal the growth of spatial correlations in the dynamics, beyond what can be inferred from standard two-point correlations. They have non-trivial scaling properties, which we interpret in terms of the diffusion-annihilation dynamics of domain walls. In the equilibrium dynamics of the Ising chain, on the other hand, connected multi-point functions vanish exactly and dynamic heterogeneity is not observed. Our results highlight the similarities between coarsening systems and glass formers.", "revisions": [ { "version": "v1", "updated": "2005-02-10T21:40:30.000Z" } ], "analyses": { "keywords": [ "glauber-ising chain", "display dynamic heterogeneity analogous", "multi-point functions vanish", "coarsening systems display dynamic heterogeneity", "glass formers" ], "tags": [ "journal article" ], "publication": { "journal": "Journal of Statistical Mechanics: Theory and Experiment", "year": 2005, "month": "May", "volume": 2005, "number": 5, "pages": 5002 }, "note": { "typesetting": "TeX", "pages": 18, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2005JSMTE..05..002M" } } }