title: Entangling strings of neutral atoms in 1D atomic pipeline structures.
abstract: We study a string of neutral atoms with nearest neighbor interaction in a 1D beam splitter configuration, where the longitudinal motion is controlled by a moving optical lattice potential. The dynamics of the atoms crossing the beam splitter maps to a 1D spin model with controllable time dependent parameters, which allows the creation of maximally entangled states of atoms by crossing a quantum phase transition. Furthermore, we show that this system realizes protected quantum memory, and we discuss the implementation of one- and two-qubit gates in this setup.
authors.affiliation: Institute for Theoretical Physics, University of Innsbruck, A-6020 Innsbruck, Austria.
authors.forename: U
authors.initials: U
authors.lastname: Dorner
authors.forename: P
authors.initials: P
authors.lastname: Fedichev
authors.forename: D
authors.initials: D
authors.lastname: Jaksch
authors.forename: M
authors.initials: M
authors.lastname: Lewenstein
authors.forename: P
authors.initials: P
authors.lastname: Zoller