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Design of an ion trap for the JILA Generation III eEDM experiment

ORAL

Abstract

The third-generation apparatus for the measurement of the electric dipole moment of the electron (eEDM) at JILA takes advantage of the fact that the eEDM-sensitive state (3Δ1) of ThF+ is the ground state, promising a coherence time of about 20 s [1,2,3]. The desired long coherence time places stringent constraints on the uniformity of the rotating electric field seen by the ions; we require field homogeneity levels down to 100 ppm. We present the progress on our prototype experiment including ion trap design and electric field simulations.

[1] Gresh, Daniel N., et al. Journal of Molecular Spectroscopy 319 (2016): 1-9.

[2] Zhou, Yan et al. J. Mol. Spec. 358, (2019) 1-16

[3] Ng, Kia Boon et al. arXiv:2202.01346

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Publication: Ng, Kia Boon et al. arXiv:2202.01346

Presenters

  • Anzhou Wang

    University of Colorado, Boulder

Authors

  • Anzhou Wang

    University of Colorado, Boulder

  • Kia Boon Ng

    University of Colorado, Boulder

  • Noah Schlossberger

    JILA, University of Colorado, Boulder

  • Sun Yool Park

    University of Colorado, Boulder

  • Benjamin D Hunt

    University of Colorado, Boulder

  • Tanya Roussy

    University of Colorado, Boulder, JILA/NIST

  • Trevor Wright

    JILA, University of Colorado, Boulder

  • Luke A Caldwell

    University of Colorado, Boulder, JILA, University of Colorado Boulder and NIST, JILA, Imperial College London

  • Antonio Vigil

    University of Colorado, Boulder, CU Boulder

  • Gus Santaella

    University of Colorado, Boulder

  • Jun Ye

    JILA, NIST, and University of Colorado Boulder, University of Colorado, Boulder

  • Eric A Cornell

    University of Colorado and NIST