Radio Frequency spectroscopy of a strongly interacting Fermi gas

ORAL

Abstract

Experiments using ultra-cold atoms have allowed researchers to study the BCS-BEC crossover. We report on studies of the crossover using an ultracold gas of potassium-40 atoms and radio-frequency (RF) spectroscopy. Atoms from one of the two strongly interacting spin states are transfered into a third spin state, which can then be selectively imaged. Our experiments differ from previous measurements using lithium-6 atoms in that we output couple the atoms to a weakly interacting state.

*JILA, National Institute of Standards and Technology and University of Colorado, Department of Physics, University of Colorado, Boulder, CO 80309-0440

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Authors

  • John Stewart

    • JILA- University of Colorado

  • John Gaebler

    • JILA- University of Colorado

  • D.S. Jin

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