Interisotope Determination of Ultracold Rubidium Interactions from Three High-Precision Experiments

E. G. M. van Kempen, S. J. J. M. F. Kokkelmans, D. J. Heinzen, and B. J. Verhaar
Phys. Rev. Lett. 88, 093201 – Published 14 February 2002
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Abstract

Combining the measured binding energies of four of the most weakly bound rovibrational levels of the 87Rb2 molecule with results of two other recent high-precision experiments, we obtain exceptionally strong constraints on the atomic interaction parameters in a highly model independent analysis. The comparison of 85Rb and 87Rb data, where the two isotopes are related by a mass scaling procedure, plays a crucial role. We predict scattering lengths, clock shifts, and Feshbach resonances with an unprecedented level of accuracy. Two of the Feshbach resonances occur at easily accessible magnetic fields in mixed-spin channels. One is related to a d-wave shape resonance.

  • Received 16 October 2001

DOI:https://doi.org/10.1103/PhysRevLett.88.093201

©2002 American Physical Society

Authors & Affiliations

E. G. M. van Kempen1, S. J. J. M. F. Kokkelmans1,*, D. J. Heinzen2, and B. J. Verhaar1

  • 1Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
  • 2Department of Physics, University of Texas, Austin, Texas 78712

  • *Present address: JILA, University of Colorado, and NIST, Boulder, CO 80309.

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Issue

Vol. 88, Iss. 9 — 4 March 2002

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