Ultracold chemistry with ground-state KRb molecules

ORAL

Abstract

We prepare a near-quantum-degenerate gas of fermionic KRb molecules, with all the molecules in the absolute lowest energy state. We observe atom-exchange chemical reactions in a regime where the reaction rates are determined by the quantum statistics of the molecules, single partial wave scattering, and quantum threshold laws [1].\\[4pt] [1] S. Ospelkaus, K.-K. Ni, D. Wang, M. H. G. de Miranda, B. Neyenhuis, G. Qu\'{e}m\'{e}ner, P. S. Julienne, J. L. Bohn, D. S. Jin, J. Ye, Quantum-State Controlled Chemical Reactions of Ultracold KRb Molecules, Science (in press).

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Authors

  • B. Neyenhuis

    • JILA, National Institute of Standards and Technology and University of Colorado Department of Physics

  • S. Ospelkaus

    • JILA, National Institute of Standards and Technology and University of Colorado Department of Physics

  • K.-K. Ni

    • JILA, National Institute of Standards and Technology and University of Colorado Department of Physics

  • D. Wang

    • JILA, National Institute of Standards and Technology and University of Colorado Department of Physics

  • M.H.G. de Miranda

    • JILA, National Institute of Standards and Technology and University of Colorado Department of Physics

  • G. Quemener

    • JILA, National Institute of Standards and Technology and University of Colorado Department of Physics

  • J.L. Bohn

    • JILA, National Institute of Standards and Technology and University of Colorado Department of Physics

  • D.S. Jin

    • JILA, National Institute of Standards and Technology and University of Colorado Department of Physics

  • J. Ye

    • JILA, National Institute of Standards and Technology and University of Colorado Department of Physics