{ "id": "cond-mat/0301156", "version": "v2", "published": "2003-01-10T17:49:10.000Z", "updated": "2003-01-29T18:39:50.000Z", "title": "Dynamics of condensation in zero-range processes", "authors": [ "C. Godreche" ], "comment": "18 pages, 8 figures 2 figures added, more accurate data at criticality", "journal": "J. Phys. A 36 (2003) 6313", "categories": [ "cond-mat.stat-mech" ], "abstract": "The dynamics of a class of zero-range processes exhibiting a condensation transition in the stationary state is studied. The system evolves in time starting from a random disordered initial condition. The analytical study of the large-time behaviour of the system in its mean-field geometry provides a guide for the numerical study of the one-dimensional version of the model. Most qualitative features of the mean-field case are still present in the one-dimensional system, both in the condensed phase and at criticality. In particular the scaling analysis, valid for the mean-field system at large time and for large values of the site occupancy, still holds in one dimension. The dynamical exponent $z$, characteristic of the growth of the condensate, is changed from its mean-field value 2 to 3. In presence of a bias, the mean-field value $z=2$ is recovered. The dynamical exponent $z_c$, characteristic of the growth of critical fluctuations, is changed from its mean-field value 2 to a larger value, $z_c\\simeq 5$. In presence of a bias, $z_c\\simeq 3$.", "revisions": [ { "version": "v2", "updated": "2003-01-29T18:39:50.000Z" } ], "analyses": { "keywords": [ "zero-range processes", "mean-field value", "random disordered initial condition", "dynamical exponent", "system evolves" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 18, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2003cond.mat..1156G" } } }