438 citations · 4k across the 28 of their papers we have counts for
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Measuring Electric Fields From Surface Contaminants with Neutral Atoms
J. M. Obrecht, R. J. Wild, E. A. Cornell
In this paper we demonstrate a technique of utilizing magnetically trapped neutral Rb-87 atoms to measure the magnitude and direction of stray electric fields emanating from surfac…
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…
Alkali adsorbate polarization on conducting and insulating surfaces probed with Bose-Einstein condensates
J. M. McGuirk, D. M. Harber, J. M. Obrecht +1
A magnetically trapped 87Rb Bose-Einstein condensate is used as a sensitive probe of short-range electrical forces. In particular, the electric polarization of, and the subsequent…
Decoherence-driven Cooling of a Degenerate Spinor Bose Gas
H. J. Lewandowski, J. M. McGuirk, D. M. Harber +1
We investigate the relationship between the coherence of a partially Bose-condensed spinor gas and its temperature. We observe cooling of the normal component driven by decoherence…
Thermally Induced Losses in Ultra-Cold Atoms Magnetically Trapped Near Room-Temperature Surfaces
D. M. Harber, J. M. McGuirk, J. M. Obrecht +1
We have measured magnetic trap lifetimes of ultra-cold Rb87 atoms at distances of 5-1000 microns from surfaces of conducting metals with varying resistivity. Good agreement is foun…
The Mystery of the Ramsey Fringe that Didn't Chirp
D. M. Harber, H. J. Lewandowski, J. M. McGuirk +1
We use precision microwave spectroscopy of magnetically trapped, ultra-cold 87Rb to characterize intra- and inter-state density correlations. The cold collision shifts for both nor…