title: Thermal fluctuations in nanofluidic transport.
abstract: We explore the impact of thermal fluctuations on nanofluidic transport. We develop a generic description of the stochastic motion of a fluid confined in a nanopore, on the basis of the fluctuating hydrodynamics framework. The center of mass of the confined fluid is shown to perform a non-markovian random walk, whose diffusion coefficient depends on the nanopore geometrical characteristics and boundary slip at its surface. We discuss the implications of this brownian-like motion of hydrodynamic degrees of freedom in two different contexts. First, we show that hydrodynamic fluctuations can lead to a strongly enhanced diffusion of particles confined in a nanopore. Second, we extend our results to account for the hydrodynamic contribution to electrical noise in charged nanopores.
authors.affiliation: Laboratoire de Physique de la Matière Condensée et Nanostructures, Université Lyon 1 and Centre National de la Recherche Scientifique, UMR 5586 Villeurbanne F-69622, France.
authors.forename: François
authors.initials: F
authors.lastname: Detcheverry
authors.forename: Lydéric
authors.initials: L
authors.lastname: Bocquet