{ "id": "cond-mat/0703335", "version": "v2", "published": "2007-03-13T12:21:04.000Z", "updated": "2007-11-26T12:18:56.000Z", "title": "Driving particle current through narrow channels using classical pump", "authors": [ "Kavita Jain", "Rahul Marathe", "Abhishek Chaudhuri", "Abhishek Dhar" ], "comment": "Revised version", "journal": "Phys. Rev. Lett. 99, 190601 (2007)", "doi": "10.1103/PhysRevLett.99.190601", "categories": [ "cond-mat.stat-mech" ], "abstract": "We study a symmetric exclusion process in which the hopping rates at two chosen adjacent sites vary periodically in time and have a relative phase difference. This mimics a colloidal suspension subjected to external space and time dependent modulation of the diffusion constant. The two special sites act as a classical pump by generating an oscillatory current with a nonzero ${\\cal DC}$ value whose direction depends on the applied phase difference. We analyze various features in this model through simulations and obtain an expression for the $\\cal{DC}$ current via a novel perturbative treatment.", "revisions": [ { "version": "v2", "updated": "2007-11-26T12:18:56.000Z" } ], "analyses": { "keywords": [ "driving particle current", "classical pump", "narrow channels", "phase difference", "special sites act" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }