Programmable quantum walk in synthetic dimension using an optical tweezer

ORAL

Abstract

We use the motional states of a single atom trapped in an optical tweezer as a synthetic lattice for a tight-binding model. Each motional Fock state acts as a lattice site, and driven couplings between these states implement hopping. By exploiting the trap anharmonicity with spatial shaking and intensity modulation, we can independently program on-site disorder and complex nearest- and next-nearest-neighbor tunneling. This gives us a highly controllable platform for Hamiltonian engineering and for generating non-Gaussian motional states through quantum walk dynamics.

*This work is supported by the NSF JILA-PFC PHY-2317149 and NSF QLCI award OMA-2016244, the U.S. Department of Energy, Office of Science, National Quantum Information Science Research Centers, Quantum Systems Accelerator, and NIST.

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Presenters

  • Jaeyong Hwang

    • JILA, University of Colorado, Boulder

Authors

  • Jaeyong Hwang

    • JILA, University of Colorado, Boulder

  • Tianrui Xu

    • Institut Quantique and Départment de Physique, Université de Sherbrooke

  • Conall V McCabe

    • JILA, University of Colorado, Boulder
    • JILA / University of Colorado in Boulder

  • Sean R Muleady

    • University of Maryland College Park

  • Steven K Pampel

    • JILA, University of Colorado, Boulder

  • Gur Lubin

    • JILA, University of Colorado, Boulder
    • JILA / University of Colorado in Boulder

  • Dawson P Hewatt

    • JILA, University of Colorado, Boulder
    • JILA / University of Colorado in Boulder

  • Cindy A Regal

    • JILA, University of Colorado Boulder
    • JILA, 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