Constraining the axion coupling to time-variation of the electron's electric dipole moment

POSTER

Abstract

We have performed a measurement of the electron's permanent electric dipole moment (eEDM) using trapped molecular ions polarized in rotating bias fields. Our initial analysis of the data yielded a mean consistent with zero, assuming no time-variation in the signal. We have performed a more detailed analysis of the data to constrain possible oscillations in the signal over eight orders of magnitude in frequency. This new analysis allows us to constrain the coupling of the hypothetical axion field to the eEDM, which (if present) would generate an oscillatory signal in the eEDM channel.

Authors

  • Tanya S. Roussy

    • JILA and University of Colorado, Boulder
    • JILA, NIST and University of Colorado, and Department of Physics, University of Colorado, Boulder

  • William B. Cairncross

    • JILA and University of Colorado, Boulder
    • JILA, NIST and University of Colorado, and Department of Physics, University of Colorado, Boulder
    • JILA, NIST, and University of Colorado, Boulder, and Department of Physics, University of Colorado

  • Daniel N. Gresh

    • JILA, NIST and University of Colorado, and Department of Physics, University of Colorado, Boulder

  • Matt Grau

    • Institute for Quantum Electronics, ETH Zurich

  • Kevin C. Cossel

    • NIST Boulder, Applied Physics Division

  • Yan Zhou

    • JILA and University of Colorado, Boulder
    • JILA, NIST and University of Colorado, and Department of Physics, University of Colorado, Boulder

  • Jun Ye

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

  • Eric A. Cornell

    • JILA, NIST, and University of Colorado, Boulder
    • JILA, NIST and University of Colorado, Boulder
    • JILA, NIST and University of Colorado, and Department of Physics, University of Colorado, Boulder