title: Nanoscale pumping of water by AC electric fields.
abstract: Using molecular dynamics simulations we demonstrate pumping of water through a carbon nanotube by time-dependent electric fields. The fields are generated by electrodes with oscillating charges in a broad gigahertz frequency range that are attached laterally to the tube. The key ingredient is a phase shift between the electrodes to break the spatiotemporal symmetry. A microscopic theory based on a polarization-dragging mechanism accounts quantitatively for our numerical findings.
authors.affiliation: Fachbereich Physik, Freie Universität Berlin, 14195 Berlin, Germany.
authors.forename: Klaus F
authors.initials: KF
authors.lastname: Rinne
authors.forename: Stephan
authors.initials: S
authors.lastname: Gekle
authors.forename: Douwe Jan
authors.initials: DJ
authors.lastname: Bonthuis
authors.forename: Roland R
authors.initials: RR
authors.lastname: Netz