title: Defect-suppressed atomic crystals in an optical lattice.
abstract: We present a coherent filtering scheme which dramatically reduces the site occupation number defects for atoms in an optical lattice by transferring a chosen number of atoms to a different internal state via adiabatic passage. With the addition of superlattices it is possible to engineer states with a specific number of atoms per site (atomic crystals), which are required for quantum computation and the realization of models from condensed matter physics, including doping and spatial patterns. The same techniques can be used to measure two-body spatial correlation functions.
authors.affiliation: Institut für Theoretische Physik, Universität Innsbruck, A-6020 Innsbruck, Austria.
authors.forename: P
authors.initials: P
authors.lastname: Rabl
authors.forename: A J
authors.initials: AJ
authors.lastname: Daley
authors.forename: P O
authors.initials: PO
authors.lastname: Fedichev
authors.forename: J I
authors.initials: JI
authors.lastname: Cirac
authors.forename: P
authors.initials: P
authors.lastname: Zoller