Gómez Marín, AlejandroSancho, José M.2011-07-072011-07-0720081063-651Xhttps://hdl.handle.net/2445/18752A Brownian pump of particles powered by a stochastic flashing ratchet mechanism is studied. The pumping device is embedded in a finite region and bounded by particle reservoirs. In the steady state, we exactly calculate the spatial density profile, the concentration ratio between both reservoirs and the particle flux. We propose a simulation framework for the consistent evaluation of such observable quantities.6 p.application/pdfeng(c) The American Physical Society, 2008Mecànica estadísticaProcessos de moviment browniàFluctuacions (Física)Processos irreversiblesTermodinàmica del desequilibriStatistical mechanicsBrownian motion processesFluctuations (Physics)Irreversible processesNonequilibrium thermodynamicsinfo:eu-repo/semantics/article557185info:eu-repo/semantics/openAccess