title: Crossed vortex bottle beam trap for single-atom qubits.
abstract: We demonstrate trapping and quantum state control of single cesium atoms in a 532 nm wavelength bottle beam trap. The three-dimensional trap is formed by crossing two unit charge vortex beams. Single atoms are loaded with 50% probability directly from a magneto-optical trap. We achieve a trapping lifetime of up to 6 s and demonstrate fast Rabi oscillations with a coherence time of T(2)~43±9 ms.
authors.affiliation: Department of Physics, University of Wisconsin, 1150 University Avenue, Madison, Wisconsin 53706, USA.
authors.forename: G
authors.initials: G
authors.lastname: Li
authors.forename: S
authors.initials: S
authors.lastname: Zhang
authors.forename: L
authors.initials: L
authors.lastname: Isenhower
authors.forename: K
authors.initials: K
authors.lastname: Maller
authors.forename: M
authors.initials: M
authors.lastname: Saffman