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Spin-dependent forces on trapped ions for phase-stable quantum gates and motional Schrodinger-cat states
P. C. Haljan, K. -A. Brickman, L. Deslauriers +2
Favored schemes for trapped-ion quantum logic gates use bichromatic laser fields to couple internal qubit states with external motion through a "spin-dependent force." We introduce…
Experimental studies of equilibrium vortex properties in a Bose-condensed gas
I. Coddington, P. C. Haljan, P. Engels +3
We characterize several equilibrium vortex effects in a rotating Bose-Einstein condensate. Specifically we attempt precision measurements of vortex lattice spacing and the vortex c…
Zero-Point cooling and low heating of trapped 111Cd+ ions
L. Deslauriers, P. C. Haljan, P. J. Lee +4
We report on ground state laser cooling of single 111Cd+ ions confined in radio-frequency (Paul) traps. Heating rates of trapped ion motion are measured for two different trapping…