title: Resonantly enhanced tunneling of Bose-Einstein condensates in periodic potentials.
abstract: We report on measurements of resonantly enhanced tunneling of Bose-Einstein condensates loaded into an optical lattice. By controlling the initial conditions of our system we were able to observe resonant tunneling in the ground and the first two excited states of the lattice wells. We also investigated the effect of the intrinsic nonlinearity of the condensate on the tunneling resonances.
authors.affiliation: Dipartimento di Fisica E. Fermi, CNR-INFM, Largo Pontecorvo 3, 56127 Pisa, Italy.
authors.forename: C
authors.initials: C
authors.lastname: Sias
authors.forename: A
authors.initials: A
authors.lastname: Zenesini
authors.forename: H
authors.initials: H
authors.lastname: Lignier
authors.forename: S
authors.initials: S
authors.lastname: Wimberger
authors.forename: D
authors.initials: D
authors.lastname: Ciampini
authors.forename: O
authors.initials: O
authors.lastname: Morsch
authors.forename: E
authors.initials: E
authors.lastname: Arimondo