APS Logo

Programmable quantum control with tweezers in a Hubbard-regime optical lattice

ORAL

Abstract

We present a new platform that combines the tools of quantum gas microscopy with optical tweezers and alkaline-earth atoms, where tweezer-implanted atoms in a Hubbard-regime optical lattice are free to tunnel in 2D, and explore a region that spans many hundreds of lattice sites. The tweezers allow for programmable modification of the lattice with single-site resolution, which we leverage in studies of search via 2D quantum random walk. Beyond enabling the study of Hubbard physics in 2D, the lattice further complements the tweezers in terms of providing power-efficient generation of many (>2000) traps that are compatible with robust 3D ground-state cooling, low loss imaging, and high-fidelity manipulation of the optical clock qubit. This enables parallel work conducted in our group that engineers interactions and entanglement between optical clock qubits via Rydberg excitations. When combined with the half-minute scale optical clock coherence recently demonstrated with this apparatus [1], these tools provide the unique capability to engineer entanglement on an internal degree of freedom that persists on timescales that are long compared to the tunneling time. This opens the door to a variety of exciting avenues, including engineering many-body oracles for search, exploring extended Hubbard models, and studies of the tunneling statistics of entangled particles, including simulations of anyonic statistics.

[1] Young A.W. et al. Nature 588, 408–413 (2020).

–

Publication: Manuscript in preparation

Presenters

  • Aaron W Young

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

Authors

  • Aaron W Young

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

  • William J Eckner

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

  • Nathan A Schine

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

  • Adam Kaufman

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