title: Quantum transport through a Tonks-Girardeau gas.
abstract: We investigate the propagation of spin impurity atoms through a strongly interacting one-dimensional Bose gas. The initially well localized impurities are accelerated by a constant force, very much analogous to electrons subject to a bias voltage, and propagate as a one-dimensional impurity spin wave packet. We follow the motion of the impurities in situ and characterize the interaction induced dynamics. We observe a very complex nonequilibrium dynamics, including the emergence of large density fluctuations in the remaining Bose gas, and multiple scattering events leading to dissipation of the impurity's motion.
authors.affiliation: Cavendish Laboratory, University of Cambridge, JJ Thompson Avenue, Cambridge CB3 0HE, United Kingdom.
authors.forename: Stefan
authors.initials: S
authors.lastname: Palzer
authors.forename: Christoph
authors.initials: C
authors.lastname: Zipkes
authors.forename: Carlo
authors.initials: C
authors.lastname: Sias
authors.forename: Michael
authors.initials: M
authors.lastname: Köhl