{ "id": "2205.03839", "version": "v1", "published": "2022-05-08T10:57:46.000Z", "updated": "2022-05-08T10:57:46.000Z", "title": "Heat flow in a periodically forced, thermostatted chain", "authors": [ "Tomasz Komorowski", "Joel L. Lebowitz", "Stefano Olla" ], "categories": [ "math-ph", "math.MP", "math.PR" ], "abstract": "We investigate the properties of a harmonic chain in contact at one end with a thermal bath and subjected at its other end to a periodic force. The particles also undergo a random velocity reversal action, which results in a finite heat conductivity of the system. We prove the approach of the system to a time periodic state and compute the heat current, equal to the time averaged work done on the system, in that state. This work approaches a finite positive value as the length of the chain increases. Rescaling space, the strength and/or the period of the force leads to a macroscopic temperature profile corresponding to the stationary solution of a continuum heat equation with Dirichlet-Neumann boundary conditions.", "revisions": [ { "version": "v1", "updated": "2022-05-08T10:57:46.000Z" } ], "analyses": { "keywords": [ "heat flow", "thermostatted chain", "random velocity reversal action", "continuum heat equation", "time periodic state" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }