Towards spin-squeezed metrology with a strontium optical lattice clock

POSTER

Abstract

Utilizing entangled states of a spin ensemble in atomic clock spectroscopy offers a fundamental improvement to the ultimate bound of clock stability. Yet the technical challenges of building such a device are considerable: besides contending with the limits of local oscillator precision and the supreme sensitivity to environmental disturbance present in every state-of-the-art optical lattice clock, one must engineer a mechanism for turning on many-body interactions without decohering the ensemble. Here, we report on the construction of a new state-of-the-art strontium optical lattice clock inside a high-finesse optical cavity. We discuss progress in generating spin-squeezed states via cavity-mediated quantum non-demolition measurements of the collective spin state, and work towards incorporating these spin-squeezed states into clock operation.  Our goal is to demonstrate the achievement of improved metrological sensitivity using a spin-squeezed ensemble compared to a coherent spin state operating at the standard quantum limit.

Presenters

  • Maya Miklos

    • JILA, NIST, and University of Colorado Boulder

Authors

  • Maya Miklos

    • JILA, NIST, and University of Colorado Boulder

  • John M Robinson

    • JILA, NIST, and University of Colorado, 440 UCB, Boulder, Colorado 80309, USA
    • JILA, NIST, and University of Colorado Boulder
    • University of Colorado, Boulder

  • Yee Ming Tso

    • JILA, NIST, and University of Colorado Boulder

  • Josephine Meyer

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

  • Colin J Kennedy

    • Quantinuum
    • JILA, NIST and Dept. of Physics, University of Colorado Boulder
    • JILA, NIST, and University of Colorado Boulder
    • University of Colorado, Boulder
    • JILA, NIST and University of Colorado Boulder

  • Tobias Bothwell

    • University of Colorado, Boulder
    • JILA, NIST and Dept. of Physics, University of Colorado Boulder
    • JILA, NIST, and University of Colorado Boulder
    • JILA, NIST and University of Colorado Boulder

  • James K Thompson

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

  • Jun Ye

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