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Improved characterization of elastic scattering near a Feshbach resonance in ⁸⁵Rb

Roberts, J.L.; Burke, J.P.; Claussen, N.R.; Cornish, S.L.; Donley, E.A.; Wieman, C.E.

Authors

J.L. Roberts

J.P. Burke

N.R. Claussen

S.L. Cornish

E.A. Donley

C.E. Wieman



Abstract

We report extensions and corrections to the measurement of the Feshbach resonance in 85Rb cold atom collisions reported earlier [J. L. Roberts et al., Phys. Rev. Lett. 81, 5109 (1998)]. In addition to a better determination of the position of the resonance peak [154.9(4) G] and its width [11.0(4) G], improvements in our techniques now allow the measurement of the absolute size of the elastic-scattering rate. This provides a measure of the s-wave scattering length as a function of magnetic field near the Feshbach resonance and constrains the Rb-Rb interaction potential.

Citation

Roberts, J., Burke, J., Claussen, N., Cornish, S., Donley, E., & Wieman, C. (2001). Improved characterization of elastic scattering near a Feshbach resonance in ⁸⁵Rb. Physical Review A, 64, https://doi.org/10.1103/physreva.64.024702

Journal Article Type Article
Publication Date 2001-08
Deposit Date Jan 9, 2009
Publicly Available Date Jan 9, 2009
Journal Physical Review A
Print ISSN 1050-2947
Electronic ISSN 1094-1622
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 64
DOI https://doi.org/10.1103/physreva.64.024702
Keywords Alkali-metal atoms, Cold collisions, Magnetic-field, Temperatures.

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