title: Fast ground state manipulation of neutral atoms in microscopic optical traps.
abstract: We demonstrate Rabi flopping at MHz rates between ground hyperfine states of neutral 87Rb atoms that are trapped in two micron sized optical traps. Using tightly focused laser beams we demonstrate high fidelity, site specific Rabi rotations with cross talk on neighboring sites separated by 8 microm at the level of 10(-3). Ramsey spectroscopy is used to measure a dephasing time of 870 micros, which is approximately 5000 longer than the time for a pi/2 pulse.
authors.affiliation: Department of Physics, University of Wisconsin-Madison, 1150 University Avenue, Madison, Wisconsin 53706, USA.
authors.forename: D D
authors.initials: DD
authors.lastname: Yavuz
authors.forename: P B
authors.initials: PB
authors.lastname: Kulatunga
authors.forename: E
authors.initials: E
authors.lastname: Urban
authors.forename: T A
authors.initials: TA
authors.lastname: Johnson
authors.forename: N
authors.initials: N
authors.lastname: Proite
authors.forename: T
authors.initials: T
authors.lastname: Henage
authors.forename: T G
authors.initials: TG
authors.lastname: Walker
authors.forename: M
authors.initials: M
authors.lastname: Saffman