Detection and Manipulation of F=9/2 nuclear spin ground states in a Strontium Cavity QED System

ORAL

Abstract

Cavity quantum electrodynamics (cavity QED) is a powerful platform for the quantum simulation of many-body physics. In this work, we demonstrate a single-shot readout of the populations of all ten nuclear spin ground states using a high-finesse cavity and state manipulation with RF coils. This scheme enables inducing cavity-mediated interactions close to one excited hyperfine manifold while performing readout via a separate manifold, ~GHz-detuned from the first. We show that this approach is compatible with quantum nondemolition (QND) measurements, facilitating ground-state entanglement for applications in state-of-the-art optical atomic clocks and magnetometers. Finally, we present another nondestructive technique that enables high-bandwidth readout exceeding the cavity linewidth limit.

*This material is based upon work supported by the U.S. Department of Energy, Office of Science, National Quantum Information Science Research Centers, Quantum Systems Accelerator. We acknowledge additional funding support from the VBFF, the National Science Foundation under Grant Numbers PFC PHY-2317149 (Physics Frontier Center) and OMA-2016244 (QLCI Q-SEnSE), the Heising-Simons Foundation, and NIST. J.T.Y. was supported by the NWO Talent Programme (project number VI.Veni.222.312), which is (partly) financed by the Dutch Research Council (NWO). D.B. was supported by the Simons collaboration on Ultra-Quantum Matter (UQM) which is funded by grants from the Simons Foundation (Grant No. 651440), and acknowledges the hospitality of the KITP while parts of this work were completed.

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Presenters

  • Eric Y Song

    • JILA

Authors

  • Eric Y Song

    • JILA

  • Seth Hew Peng Chew

    • JILA, University of Colorado, Boulder
    • JILA

  • Joyce Kwan

    • Harvard University

  • Diego A Fallas Padilla

    • JILA and University of Colorado, Boulder

  • Haoqing Zhang

    • University of Colorado, Boulder

  • Ana Maria Rey

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

  • James K Thompson

    • JILA, NIST & University of Colorado
    • JILA & University of Colorado
    • JILA
    • STFC UKRI
    • JILA, NIST, University of Colorado Boulder