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Very High Precision Bound State Spectroscopy near a 85Rb Feshbach Resonance Public Deposited
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https://scholar.colorado.edu/concern/articles/00000068n
- Abstract
We precisely measured the binding energy (εbind) of a molecular state near the Feshbach resonance in a ⁸⁵Rb Bose-Einstein condensate (BEC). Rapid magnetic-field pulses induced coherent atom-molecule oscillations in the BEC. We measured the oscillation frequency as a function of B field and fit the data to a coupled-channel model. Our analysis constrained the Feshbach resonance position [155.041(18) G], width [10.71(2) G], and background scattering length [−443(3)a₀] and yielded new values for the Rb interaction parameters. These results improved our estimate for the stability condition of an attractive BEC. We also found evidence for a mean-field shift to εbind.
- Creator
- Date Issued
- 2003-06-20
- Academic Affiliation
- Journal Title
- Journal Issue/Number
- 6
- Journal Volume
- 67
- File Extent
- 060701-1-060701-4
- Last Modified
- 2020-01-14
- Resource Type
- Rights Statement
- DOI
- 10.1103/PhysRevA.67.060701
- ISSN
- 1050-2947
- Language
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veryHighPrecisionBoundStateSpectroscopyNearA85RbFeshbach.pdf | 2019-12-05 | Public | Download |