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Development of a spin-squeezed strontium optical lattice clock

POSTER

Abstract

In optical atomic clocks made up of uncorrelated atoms, the fundamental limit of frequency instability is set by quantum projection noise (QPN). By leveraging non-classical spin correlations of the atomic ensemble, entangled atomic clocks can advance past the QPN limit towards the ultimate bound set by the Heisenberg uncertainty principle. As state-of-the-art optical atomic clocks approach QPN-limited operation [1], spin-squeezed clocks offer potential metrological gains. A spin-squeezed optical lattice clock has been demonstrated with stability levels of 10-13 [2]. We report on progress towards the development of a one-dimensional strontium optical lattice clock in a high-finesse cavity to pursue a spin-squeezed clock with a stability of 10-16 or better. By combining the exquisite sensitivity of state-of-the-art optical atomic clocks with long-range cavity-mediated interactions, this system will also offer rich and varied applications to quantum information science, from probing extended Hubbard model physics to studying the scrambling of quantum information.

[1] E. Oelker, R.B. Hutson , C.J. Kennedy, et al. Demonstration of 4.8 × 10−17 stability at 1 s for two independent optical clocks. Nat. Photonics 13, 714–719 (2019).

[2] E. Pedrozo-Peñafiel, S. Colombo, C. Shu, et al. Entanglement on an optical atomic-clock transition. Nature 588, 414–418 (2020).

*These authors contributed equally to this work and will be co-presenting the poster. 

Presenters

  • Maya Miklos*

    JILA, NIST, and University of Colorado Boulder, JILA, National Institute of Standards and Technology and University of Colorado, Department of Physics, 440 UCB, Boulder, Colorado 80309, USA

Authors

  • Maya Miklos*

    JILA, NIST, and University of Colorado Boulder, JILA, National Institute of Standards and Technology and University of Colorado, Department of Physics, 440 UCB, Boulder, Colorado 80309, USA

  • Yee Ming Tso*

    JILA, NIST, and University of Colorado Boulder

  • John M Robinson

    JILA, NIST, and University of Colorado Boulder, JILA, National Institute of Standards and Technology and University of Colorado, Department of Physics, 440 UCB, Boulder, Colorado 80309, USA

  • Josephine Meyer

    JILA, NIST, and University of Colorado Boulder, JILA, National Institute of Standards and Technology and University of Colorado, Department of Physics, 440 UCB, Boulder, Colorado 80309, USA

  • Colin J Kennedy

    JILA, NIST, and University of Colorado Boulder, JILA, National Institute of Standards and Technology and University of Colorado, Department of Physics, 440 UCB, Boulder, Colorado 80309, USA

  • Tobias Bothwell

    JILA, NIST, and University of Colorado Boulder, JILA, National Institute of Standards and Technology and University of Colorado, Department of Physics, 440 UCB, Boulder, Colorado 80309, USA, University of Colorado, Boulder

  • James K Thompson

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

  • Jun Ye

    JILA and University of Colorado Boulder, JILA, University of Colorado, Boulder, University of Colorado, Boulder, JILA, NIST, and University of Colorado Boulder, JILA, University of Colorado Boulder, JILA, University of Colorado and National Institute of Standards and Technology, and Department of Physics, University of Colorado, Boulder, Colorado 80309, USA, JILA, National Institute of Standards and Technology and Department of Physics, University of Colorado, Boulder, Colorado 80309, USA, JILA, NIST, and Department of Physics, University of Colorado, Boulder, JILA, NIST, and University of Colorado, Boulder, JILA, NIST, and University of Colorado at Boulder