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.

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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