Improving the Fidelity of Single Qubit Primitives in <sup>133</sup>Ba<sup>+</sup>

POSTER

Abstract

Recent advances in the loading efficiency, via auto-ioninizing resonances, has highlighted the potential of 133Ba+ as an easy to use qubit, addressing a major impediment faced by early researchers. Here, we report on recent progress in enhancing the fidelity of qubit state preparation and measurement in this species. By augmenting optical-pumping electron shelving with unitary transfer of one qubit state to a metastable 2D5/2  manifold, we are able to isolate the qubit states during preparation and readout, substantially reducing leakage and off-resonant scatter during optical pumping.

*Army Research Office 

Presenters

  • Steven A Diaz

    • University of California, Los Angeles

Authors

  • Steven A Diaz

    • University of California, Los Angeles

  • Jiaxiang Wang

    • University of California, Los Angeles
    • Yale University

  • Zachary James Wall

    • University of California, Los Angeles

  • Elijah Mossman

    • University of California, Los Angeles

  • Michael Bareian

    • University of California, Los Angeles

  • Wesley C Campbell

    • UCLA
    • University of California, Los Angeles
    • University of California Los Angeles

  • Eric R. Hudson

    • University of California, Los Angeles