Resolved atomic interaction sidebands in an optical clock transition

POSTER

Abstract

We report the observation of resolved atomic interaction sidebands (ISB) in the $^{87}$Sr optical clock transition when atoms at microkelvin temperatures are confined in a two-dimensional (2D) optical lattice. The ISB are a manifestation of the strong interactions that occur between atoms confined in a quasi-one-dimensional geometry and disappear when the confinement is relaxed along one dimension. The emergence of ISB is linked to the recently observed suppression of collisional frequency shifts [1]. At the current temperatures, the ISB can be resolved but are broad. At lower temperatures, ISB are predicted to be substantially narrower and usable as powerful spectroscopic tools in strongly interacting alkaline earth gases. \\[4pt] [1] M. D. Swallows \textit{et al}. Science (10.1126/science.1196442.)

Authors

  • Ana Maria Rey

    • JILA, University of Colorado and National Institute of Standard and Technology, Boulder, CO 80309
    • JILA (CU and NIST), and Dep. of Physics, U Colorado, Boulder, CO 80309
    • JILA and University of Colorado
    • University of Colorado, NIST, and JILA
    • JILA/NIST, University of Colorado
    • JILA, NIST, University of Colorado
    • JILA \& Department of Physics, University of Colorado, Boulder

  • Michael Bishof

    • JILA/NIST, University of Colorado
    • JILA, NIST, University of Colorado

  • Yige Lin

    • JILA/NIST, University of Colorado
    • JILA, NIST, University of Colorado

  • Matthew Swallows

    • JILA/NIST, University of Colorado
    • JILA, NIST, University of Colorado

  • Michael Martin

    • JILA, NIST, University of Colorado

  • Alexey Gorshkov

    • IQI, Caltech

  • Jun Ye

    • JILA, NIST, University of Colorado
    • University of Colorado, Boulder