{ "id": "1602.03345", "version": "v1", "published": "2016-02-10T12:22:11.000Z", "updated": "2016-02-10T12:22:11.000Z", "title": "Spatial correlations, additivity and fluctuations in conserved-mass transport processes", "authors": [ "Arghya Das", "Sayani Chatterjee", "Punyabrata Pradhan" ], "comment": "12 pages, 8 figures", "categories": [ "cond-mat.stat-mech" ], "abstract": "We exactly calculate two-point spatial correlation functions in steady state in a broad class of conserved-mass transport processes, which are governed by chipping, diffusion and coalescence of masses. We find that the spatial correlations are in general short-ranged and consequently, on a large scale, these conserved-mass transport processes possess a remarkable thermodynamic structure in the steady state. That is, the processes have an equilibriumlike additivity property, and a corresponding fluctuation-response relation, which helps us to obtain subsystem mass distributions in the limit of subsystem size large.", "revisions": [ { "version": "v1", "updated": "2016-02-10T12:22:11.000Z" } ], "analyses": { "keywords": [ "additivity", "two-point spatial correlation functions", "conserved-mass transport processes possess", "fluctuations", "steady state" ], "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2016arXiv160203345D" } } }