Realization of degenerate <sup>23</sup>Na<sup>40</sup>K molecules

ORAL

Abstract

We report on the generation of 60000 degenerate and long-lived 23Na40K Feshbach molecules at a temperature of 0.3 times the Fermi temperature. We use a species-dependent dipole trap to selectively compress a degenerate Fermi gas of K and match its density to a Bose-Einstein condensate of Na. By ramping the magnetic field across a Feshbach resonance, we are able to associate more than 60% of the bosons into weakly-bound Feshbach molecules. After the association, during which no loss is observed, the Feshbach molecules are transferred into the rovibrational ground-state by Stimulated Raman Adiabatic Passage.

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Presenters

  • Marcel Duda

    • Max Planck Institute for Quantum Optics
    • Max Planck Institute of Quantum Optics

Authors

  • Marcel Duda

    • Max Planck Institute for Quantum Optics
    • Max Planck Institute of Quantum Optics

  • Xingyan Chen

    • Max Planck Institute for Quantum Optics
    • Max Planck Institute of Quantum Optics

  • Andreas Schindewolf

    • Max Planck Institute for Quantum Optics
    • Max Planck Institute of Quantum Optics

  • Roman Bause

    • Max Planck Institute for Quantum Optics
    • Max Planck Institute of Quantum Optics

  • Xinyu Luo

    • Max Planck Institute for Quantum Optics
    • Max Planck Institute of Quantum Optics

  • Immanuel F Bloch

    • Max Planck Institute for Quantum Optics
    • Max Planck Institute of Quantum Optics
    • Max-Planck Institute for Quantum Optics (MPQ)
    • Ludwig-Maximilians-University Munich
    • Max Planck Institute for Plasma Physics
    • Ludwig-Maximilians-Universitaet (LMU-Munich), Max-Planck Institut für Quantenoptik, Munich Center for Quantum Science and Technology (MCQST)