Upside/Downside statistical mechanics of nonequilibrium Brownian motion. II. Heat transfer and energy partitioning of a free particle

Galen T. Craven, Renai Chen, Abraham Nitzan

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4 Scopus citations

Abstract

The energy partitioning during activation and relaxation events under steady-state conditions for a Brownian particle driven by multiple thermal reservoirs of different local temperatures is investigated. Specifically, we apply the formalism derived in Paper I [G. T. Craven and A. Nitzan, J. Chem. Phys. 148, 044101 (2018)] to examine the thermal transport properties of two sub-ensembles of Brownian processes, distinguished at any given time by the specification that all the trajectories in each group have, at that time, energy either above (upside) or below (downside) a preselected energy threshold. Dynamical properties describing energy accumulation and release during activation/relaxation events and relations for upside/downside energy partitioning between thermal reservoirs are derived. The implications for heat transport induced by upside and downside events are discussed.

Original languageEnglish
Article number104103
JournalJournal of Chemical Physics
Volume149
Issue number10
DOIs
StatePublished - 14 Sep 2018

Funding

FundersFunder number
Israel-U.S. Binational Science Foundation
U.S. National Science Foundation
Deutsche ForschungsgemeinschaftDFG TH 820/11-1

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