Poster Session

Poster Session I (4pm-6pm CDT)

4:00 pm – 6:00 pm, Tuesday June 4 // Session D00

Topics:

Progress on the JILA Gen. III eEDM Experiment

Poster 125

Presenter: Sun Yool Park (University of Colorado, Boulder)

Authors: Anzhou Wang (University of Colorado, Boulder), Addison Hartman (University of Colorado, Boulder), Patricia Hector Hernandez (University of Colorado, Boulder), Kia Boon Ng (University of Colorado, Boulder), Noah Schlossberger (University of Colorado, Boulder), Trevor Wright (JILA), Rohan Kompella (University of Colorado, Boulder), Jun Ye (CU Boulder), Eric Cornell (University of Colorado and NIST)

The third generation (Gen. III) apparatus for the measurement of the electron electric dipole moment (eEDM) at JILA utilizes ThF⁺ whose eEDM sensitive state promises coherence time of ~20 seconds [1,2,3]. To fully take advantage of the long coherence time, it is necessary to decouple repetition time of the experiment from the long coherence time. We plan to make a “conveyor belt” of 25 consecutive ion traps, named the Bucket Brigade (B.B.) which will continuously load and read out ThF⁺, allowing for an increased duty cycle without compromising long interrogation times. We are currently studying the prototype of the Bucket Brigade, the baby Bucket Brigade (b.B.B) which has only one ion trap. Here, we present our progress towards a continuous-mode precision measurement including measurements of quantum evolution during ion transport.

[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. Physical Review A 105 (2022): 022823

Funding acknowledgement

We would like to acknowledge funding from: AFOSR, the Sloan adn Moore Foundation, the Marsico Foundation, NIST, and NSF.

POSTERS (157)