Extreme Tunability of Interactions in a {sup 7}Li Bose-Einstein Condensate
Journal Article
·
· Physical Review Letters
- Department of Physics and Astronomy and Rice Quantum Institute, Rice University, Houston, Texas 77005 (United States)
We use a Feshbach resonance to tune the scattering length a of a Bose-Einstein condensate of {sup 7}Li in the |F=1,m{sub F}=1> state. Using the spatial extent of the trapped condensate, we extract a over a range spanning 7 decades from small attractive interactions to extremely strong repulsive interactions. The shallow zero crossing in the wing of the Feshbach resonance enables the determination of a as small as 0.01 Bohr radii. Evidence of the weak anisotropic magnetic dipole interaction is obtained by comparison with different trap geometries for small a.
- OSTI ID:
- 21180247
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 9 Vol. 102; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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