title: Controlling fast transport of cold trapped ions.
abstract: We realize fast transport of ions in a segmented microstructured Paul trap. The ion is shuttled over a distance of more than 10(4) times its ground state wave function size during only five motional cycles of the trap (280 μm in 3.6 μs). Starting from a ground-state-cooled ion, we find an optimized transport such that the energy increase is as low as 0.10±0.01 motional quanta. In addition, we demonstrate that quantum information stored in a spin-motion entangled state is preserved throughout the transport. Shuttling operations are concatenated, as a proof-of-principle for the shuttling-based architecture to scalable ion trap quantum computing.
authors.affiliation: QUANTUM, Institut für Physik, Universität Mainz, Mainz, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Walther
authors.forename: F
authors.initials: F
authors.lastname: Ziesel
authors.forename: T
authors.initials: T
authors.lastname: Ruster
authors.forename: S T
authors.initials: ST
authors.lastname: Dawkins
authors.forename: K
authors.initials: K
authors.lastname: Ott
authors.forename: M
authors.initials: M
authors.lastname: Hettrich
authors.forename: K
authors.initials: K
authors.lastname: Singer
authors.forename: F
authors.initials: F
authors.lastname: Schmidt-Kaler
authors.forename: U
authors.initials: U
authors.lastname: Poschinger